Dissertationen: „VAT information exchange system“

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Kašpar, Tomáš. „Kvantifikace a srovnání daňových úniků na dani z přidané hodnoty ve vybraných zemích Evropské unie a odhad daňové mezery“. Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2021. http://www.nusl.cz/ntk/nusl-444244.

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The diploma thesis deals with the finding and evaluation of the usefulness and influence of tax authority tools in the Czech Republic and in selected countries of the European Union according to similar indicators. The aim of the thesis is to analyze the effectiveness and utility of the tools used. The number of information in the international exchange of information is compared and the number of tax subjects in the gray economy and their involvement in tax evasion is evaluated. The theoretical part defines core elements of the diploma thesis which are the value added tax, the VAT GAP and the division of tax authority instruments. Concurrently, it describes related mechanisms which shall ensure the elimination of tax evasion. The practical part analyzes selected instruments and their values that the tax authority has at its disposal to combat tax evasion. From the output data, the VAT GAP is estimated using a calculation using the gross domestic product adjustment method. All results found within the Czech Republic will be compared with available comparable data in the EU countries. To conclude, the results are valorized, and instruments are evaluated internationally. It is estimated the amount of the VAT GAP and the possible prediction of future developments.

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Almalohi, Mussaad. „Implementing Health Information Exchange System: Saudi Arabia“. Digital Commons at Loyola Marymount University and Loyola Law School, 2015. https://digitalcommons.lmu.edu/etd/350.

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In Saudi Arabia, medical errors are at an alarming level. Lack of a Health Information Exchange (HIE) system is one the greatest reasons for medical errors in the Kingdom. Health care in many countries has evolved with the invention of electronic health information exchange system, henceforth HIE. This research paper purposes to implement HIE in Saudi Arabia, which entirely does not have a system of the sort. It is imperative instill HIE in the health care system in Saudi to allow physicians, nurses, health care facilities as well as patients to electronically share medical information in a safe and secure manner. Many countries such as United States, New Zealand and Germany have had great success with the HIE system and have reported vast benefits. Benefits of HIE are such as reduction of health care cost as well as decreasing medical errors. For Saudi Arabia to reach the same heights, many stakeholders will be involved in the triumph of the HIE system in the Kingdom of Saudi Arabia. The biggest contributor will be the Ministry of Health, which will be in charge of implementing as well as making the system mandatory in the main four hospitals in the country: Shomasy, Kind Saud University Hospital, Ministry of interior Hospital and Ministry of Defense Hospital. Each hospital having their own current medical information recording system, will now have one universal system that is made sure to be secure and safe for patients as well as other participating organizations who have access to the HIE system. The main concentration of the HIE system in Saudi Arabia will be in the emergency care of these four hospitals. It is crucial to have an organized and controlled way of recording as well as accessing patient medical records electronically, in a fast and effective way. This paper proposes that an HIE system in Saudi Arabia will reduce the cost of medical care and decrease medical errors. Through the use of Lean thinking and the use of quality tools, the HIE system will be able to change and increase the reliably as well as effectiveness of Urgent Care in the country and therefore have consequent benefits as well. Also, understanding who is going to play a great role in the triumph of the HIE system, such as the Ministry of Health and knowing what stakeholders will need to be affiliated and contribute will lead the project to a better success.

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Cook, Douglas A. Lancaster Patrick E. Patto Robert R. „The combined enterprise regional information exchange system - the way ahead“. Monterey, Calif. : Naval Postgraduate School, 2007. http://bosun.nps.edu/uhtbin/hyperion-image.exe/07Sep%5FCook.pdf.

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Thesis (M.S. in Information Technology Management)--Naval Postgraduate School, September 2007.
Thesis Advisor(s): Pfeiffer, Karl ; Barreto, Buddy. "September 2007." Description based on title screen as viewed on 10/23/2007. Includes bibliographical references (p. 129-131). Also available in print.

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Patto, Robert R., und Patrick E. Jr Lancaster. „The combined enterprise regional information exchange system - the way ahead“. Thesis, Monterey, California. Naval Postgraduate School, 2007. http://hdl.handle.net/10945/3331.

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The Combined Enterprise Regional Information Exchange System (CENTRIXS) is a coordinated Department of Defense Program established at the request of the Combatant Commands (COCOMs) to support the Global War on Terrorism (GWOT). CENTRIXS is a standing, global enterprise network allowing U.S. and coalition nations and their forces, in a seamless manner, to securely share operational and intelligence information in support of combined planning, a unity of effort, and decision making in multinational operations. This thesis describes CENTRIXS networks that support the needs of the COCOMs on a global basis. The document also addresses who is connected to whom, what kinds of information must be passed from one user to another, and the services provided to the users of CENTRIXS networks. We conduct a Knowledge Value Added analysis to streamline the manning and usability of CENTRIXS nodes. We also explore how to efficiently and effectively go through the process of acquisition, installation, and accreditation of a CENTRIXS node.

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Cook, Douglas A., und Robert R. Patto. „The combined enterprise regional information exchange system - the way ahead“. Monterey California. Naval Postgraduate School, 2007. http://hdl.handle.net/10945/10266.

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The Combined Enterprise Regional Information Exchange System (CENTRIXS) is a coordinated Department of Defense Program established at the request of the Combatant Commands (COCOMs) to support the Global War on Terrorism (GWOT). CENTRIXS is a standing, global enterprise network allowing U.S. and coalition nations and their forces, in a seamless manner, to securely share operational and intelligence information in support of combined planning, a unity of effort, and decision making in multinational operations. This thesis describes CENTRIXS networks that support the needs of the COCOMs on a global basis. The document also addresses who is connected to whom, what kinds of information must be passed from one user to another, and the services provided to the users of CENTRIXS networks. We conduct a Knowledge Value Added analysis to streamline the manning and usability of CENTRIXS nodes. We also explore how to efficiently and effectively go through the process of acquisition, installation, and accreditation of a CENTRIXS node.

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Lee, Hojun. „ONTOLOGY-BASED DATA FUSION WITHIN A NET-CENTRIC INFORMATION EXCHANGE FRAMEWORK“. Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/193779.

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With the advent of Network-Centric Warfare (NCW) concepts, Command and Control (C2) Systems need efficient methods for communicating between heterogeneous systems. To extract or exchange various levels of information within the networks requires interoperability between human and machine as well as between machine and machine. This dissertation explores the Information Exchange Framework (IEF) concept of distributed data fusion sensor networks in Network-centric environments. It is used to synthesize integrative battlefield pictures by combining the Battle Management Language (BML) and System Entity Structure (SES) ontology framework for C2 systems. The SES is an ontology framework that can facilitate information exchange in a network environment. From the perspective of the SES framework, BML serves to express pragmatic frames, since it can specify the information desired by a consumer in an unambiguous way. This thesis formulates information exchange in the SES ontology via BML and defines novel pruning and transformation processes of the SES to extract and fuse data into higher level representations. This supports the interoperability between human users and other sensor systems. The efficacy of such data fusion and exchange is illustrated with several battlefield scenario examples.A second intercommunication issue between sensor systems is how to ensure efficient and effective message passing. This is studied by using Cursor-on-Target (CoT), an effort to standardize a battlefield data exchange format. CoT regulates only a few essential data types as standard and has a simple and efficient structure to hold a wide range of message formats used in dissimilar military enterprises. This thesis adopts the common message type into radar sensor networks to manage the target tracking problem in distributed sensor networks.To demonstrate the effectiveness of the proposed Information Exchange Framework for data fusion systems, we illustrate the approach in an air defense operation scenario using DEVS modeling and simulation. The examples depict basic air defense operation procedure. The demonstration shows that the information requested by a commander is delivered in the right way at the right time so that it can support agile decision making against threats.

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Tarazona, Machicao Mateo. „Agroecological innovation in Challa : Intercultural dialogue and participatory research in knowledge and information exchange“. Thesis, Uppsala universitet, Industriell teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-209729.

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The development of agroecological food systems in the Andes provides a fruitful study environment for understanding innovation processes in participatory research. In this particular context two knowledge based communities - the modern scientific and the traditional indigenous form an intercultural dialogue that frames the conditions for innovation to be developed and sustained. This thesis presents an exploratory case study of the Communal Agricultural Risk Management project in Challa, Bolivia. A project that aims at combining local knowledge with technological innovation as a strategy to reduce vulnerability to climate risk by strengthening local production systems. The study applies a sociotechnical approach to agricultural knowledge and information systems to analyse how innovations are facilitated and sustained by the projects main actor - the local stakeholder and participatory researcher denominated as Yapuchiri. The main findings of the study conclude that innovation is facilitated but not sustained as vertical linkages between actors and diverging perceptions of personal benefits, project goals and material/immaterial resources limit the performance of the system. The study consequently suggests that the Yapuchiris have to reach consensus on mutual benefits with the collective coordination of agroecological practices in order to find equitable partnerships that help to sustain their work after the project has ended.

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Drobílek, Dušan. „Burzovní informační a obchodní systémy“. Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-142174.

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Financial exchange markets are institutions that have a unique place in the system of market economy and are rightly considered to be the main pillars of the financial markets. Especially thanks to its functional and social status. The recent development of information and communication technologies has been significantly changing the exchange market systems. This thesis deals with the exchange market's system. In the theoretical part of the paper is the main attention paid to the decomposition of the whole complex into subsystems and characteristics of its individual components, in particular trading and information subsystem within the structure of the exchange market. The practical part is devoted to research the presence of tacit knowledge and its impact on trading.

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Tensmyr, Tobias. „Vacation Exchange Management : Investigating the Vacation Exchange Process at Karlstad Municipality Through Document Analysis, Interviews, and Task Analysis to Elicit System Requirements“. Thesis, Karlstads universitet, Handelshögskolan (from 2013), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-77988.

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The study aims to investigate the current process for vacation exchange at Karlstad municipality to elicit system requirements for a future system. The investigation includes creating an understanding of the vacation exchange process, the roles involved, and their tasks performed in the process. Further, the limitations, the information used, and the decisions made in the vacation exchange process were also a part of the investigation. The investigation of the vacation exchange process is performed by analyzing an internal document from Karlstad municipality and interviews conducted with the three roles involved in the process. The interviews are transcribed, summarized, and modeled by process models using 2c8 Modeling Tool to explain the vacation exchange process, inputs, and outputs, and the tasks each role performs. The findings showed three specific categories in the vacation exchange process that should be improved when a future system is designed and developed to support the process. The three found categories were: lack of information, information flow, and distribution of responsibilities. In conclusion, the future system should have a function to notify the roles involved. Information used in the vacation exchange process should be gathered and easily accessible in the future system. Further, the future system should support communication between the roles involved in the vacation exchange process, as well as include functions for back-up, digital sending of documents, and facilitate rarely performed tasks. Lastly, the future system should define the responsibilities for each role to balance the tasks each role performs in the process.

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Halton, Christopher H. „An effectiveness study for prioritization algorithms in a communications node model for the Copernicus Tactical Data Information Exchange System (TADIXS)“. Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA337403.

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Thesis (M.S. in Systems Technology (Joint Command, Control, and Communications)) Naval Postgraduate School, Sept. 1997.
Thesis advisors, Michael G. Sovereign, Orin E. Marvel. Includes bibliographical references (p. 131). Also available online.

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MacFarlane, Katrinna. „An intelligent multi-agent system approach to automating safety features for on-line real time communications : agent mediated information exchange“. Thesis, University of Huddersfield, 2016. http://eprints.hud.ac.uk/id/eprint/32669/.

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Child safety online is a growing problem, governmental attempts to highlight and combat this issue have not been as successful as it was hoped, and still there are highly publicised cases of children, young people and vulnerable adults coming to harm as a result of unsafe online practices. This thesis presents the research, design and development of a prototype system called SafeChat, which will provide a safer environment for children interacting in online environments. In order to combat such a complex problem, it is necessary to integrate various artificial intelligent technologies and autonomous systems. The SafeChat prototype system discussed within this research has been implemented in Java Agent Development Environment (JADE) and utilises Protégé Ontology development, reasoning and natural language processing techniques. To evaluate our system performance, comprehensive testing to measure its effectiveness in detecting potential risk to the user (e.g. child) is in constant development. Initial results of system testing are encouraging and demonstrate its effectiveness in identifying different levels of threat during online conversation. The potential impact of this work is immense, when used as a plug-in to popular communications software, such as Facebook Messenger, Skype and WhatsApp. SafeChat provides a safer environment for children to communicate, identifying potential and actual threats, whilst maintaining the privacy of their discourse. The SafeChat system could be easily adapted to provide autonomous solutions in other areas of online threat, such as cyberbullying and radicalisation.

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De, Wind Lynell J. „Sharing health data woes. Perceptions of data sharing barriers from employees in a Midwest health care system“. Franklin University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=frank1603367647136537.

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Schnell, Felicia. „Multicast Communication for Increased Data Exchange in Data- Intensive Distributed Systems“. Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232132.

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Modern applications are required to handle and communicate an increasing amount of data. Meanwhile, distributed systems containing multiple computationally weak components becomes more common, resulting in a problematic situation. Choosing among communication strategies, used for delivering message between entities, therefore becomes crucial in order to efficiently utilize available resources. Systems where identical data is delivered to many recipients are common nowadays, but may apply an underlying communication strategy based on direct interaction between sender and receiver which is insufficient. Multicasting refers to a technique for group communication where messages can be distributed to participating nodes in a single transmission. This technique is developed to circumvent the problem of high workload on sender side and redundant traffic in the network, and constitutes the focus for this thesis. Within the area of Electronic Warfare and self-protection systems, time constitutes a critical aspect in order to provide relevant information for decision making. Self-protection systems developed by Saab, used in military aircrafts, must provide situational awareness to guarantee that correct decisions can be made at the right time. With more advanced systems, where the amount of data needed to be transmitted increases, the need of fast communication is essential to achieve quality of service. This thesis investigates how the deployment of multicast, in a distributed data-intensive system, could prepare a system for increased data exchange. The result is a communication design which allows for the system to distribute messages to a group of receivers with less effort from the sender and with reduced redundant traffic transferred over the same link. Comparative measurements are conducted between the new implementation and the old system. The result of the evaluation shows that the multicast solution both can decrease the time for message handling as well as the workload on endpoints significantly.
Nutidens applikationer måste kunna hantera och kommunicera en ökad datamängd. Samtidigt har distribuerade system bestående av många beräkningsmässigt svaga enheter blivit allt mer vanligt, vilket är problematiskt. Valet av kommunikationsstrategi, för att leverera data mellan enheter i ett system, är därför av stor betydelse för att uppnå effektivt utnyttjande av tillgängliga resurser. System där identisk information ska distribueras till flertalet mottagare är vanligt förekommande idag. Den underliggande kommunikationsstrategin som används kan dock baseras på direkt interaktion mellan sändare och mottagare vilket är ineffektivt. Multicast (Flersändning) syftar till ett samlingsbegrepp inom datorkommunikation baserat på gruppsändning av information. Denna teknik är utvecklad för att kringgå problematiken med hög belastning på sändarsidan och dessutom minska belastningen på nätverket, och utgör fokus för detta arbete. Inom telekrigföring och självskyddssystem utgör tiden en betydande faktor för att kunna tillhandahålla relevant information som kan stödja beslutsfattning. För självskyddssystem utvecklade av Saab, vilka används i militärflygplan, är situationsmedvetenhet av stor betydelse då det möjliggör för att korrekta beslut kan tas vid rätt tidpunkt. Genom utvecklingen av mer avancerade system, där mängden meddelanden som måste passera genom nätverket ökar, tillkommer höga krav på snabb kommunikation för att kunna åstadkomma kvalité. Denna uppsatsrapport undersöker hur införandet av multicast, i ett dataintensivt distribuerat system, kan förbereda ett system för ökat datautbyte. Arbetet har resulterat i en kommunikationsdesign som gör det möjligt för systemet att distribuera meddelanden till grupp av mottagare med minskad belastning på sändarsidan och mindre redundant trafik på de utgående länkarna. Jämförandet mätningar har gjorts mellan den nya implementationen och det gamla systemet. Resultaten visar att multicast-lösningen både kan reducera tiden för meddelande hantering samt belastningen på ändnoder avsevärt.

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Huang, Jiawei. „The Road to a Nationwide Electronic Health Record System: Data Interoperability and Regulatory Landscape“. Scholarship @ Claremont, 2019. https://scholarship.claremont.edu/cmc_theses/2224.

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This paper seeks to break down how a large scale Electronic Health Records system could improve quality of care and reduce monetary waste in the healthcare system. The paper further explores issues regarding regulations to data exchange and data interoperability. Due to the massive size of healthcare data, the exponential increase in the speed of data generation through innovative technologies, and the complexity of healthcare data types, the widespread of a large-scale EHR system has hit barriers. Much of the data available is unstructured or contained within a singular healthcare provider’s systems. To fully utilize all the data available, methods for making data interoperable and regulations for data exchange to protect and support patients must be made. Through angles addressing data exchange and interoperability, we seek to break down the constraints and issues that EHR systems still face and gain an understanding of the regulatory landscape.

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Omar, Yasmin. „”Sometimes it works, sometimes it doesn’t” : a study on crime workers’ experience with multi-agency cooperation and information exchange in Sweden“. Thesis, Högskolan Kristianstad, Fakulteten för hälsovetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-21361.

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Multi-agency cooperation has been considered a very important aspect of crime investigation and crime prevention in modern time. The aim of this study was to explore the realities of multi-agency cooperation as experienced by Swedish crime workers from the police, the Prison and Probation Service and the Social Service. Previous research has shown that inter-agency cooperation’s success and/or failure is controlled by factors such as time, resources, amount of guidance and so on, however very little research has explored the modern Swedish crime workers’ perspective in the subject. Semi-structured interviews were conducted regarding the topics of cooperation between agencies, information exchange and secrecy. The results showed that while cooperation within the Swedish Judicial System was operating well, collaborative efforts with external agencies like the Social Service, was severely lacking. Collaborative efforts were experienced as less actual cooperation and more information exchange, which in turn was heavily controlled by secrecy laws and therefore often seen as one-way communication with external agencies. Additionally, when well-planned collaborative projects funded by the government are in place, the cooperation tends to work easier, however workers are less inclined to prioritize such efforts when the agencies’ own resources are being used.

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Musiyarira, Takudzwa Taurai Christopher. „Assessing the ICT-enabled agricultural commodity exchange market and its impact on small-scale farmers in South Africa Takudzwa“. University of the Western Cape, 2013. http://hdl.handle.net/11394/4083.

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Magister Economicae - MEcon
Pre-democratic South Africa was highly regulated by the apartheid government with the black small-scale farming community actively marginalised. Following the deregulation of the South African agricultural market came the opening up of the market to accommodate these small-scale farmers and also the introduction of South African Futures Exchange. South Africa has done well in terms of development of ICT over the past years, making it a country with characteristics of both first and third world countries. This study aims to assess the agricultural commodity exchange market and how small-scale farmers may participate more actively in the market. This study finds that though South Africa has world class ICT infrastructure this has not made it easier for small-scale farmers to enter the agricultural market and value chain. The study finds that there is little or no participation by small-scale farmers in South African Futures Exchange. It finds that mobile phones and applications may be the way forward in the efforts to ensure their participation in the commodity exchange market through provision of services such as price discovery and price risk management as is the function of South African Futures Exchange. It is also found that there is need to invest in high value agricultural products in order to benefit more from commodity exchanges.

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Goncalves, Marcus V. A. „A study of how the student and exchange visa information system influences the influx and study of graduate international students in science and engineering in the U.S“. Thesis, Boston University, 2009. https://hdl.handle.net/2144/33478.

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Thesis (Ed.D.)--Boston University
The influx of international graduate students in science and engineering to the U.S. has changed since the terrorist attacks of September 11, 2001. The implementation of the Student and Exchange Visitor Information System (SEVIS) and related F-1 visa policies have required a higher level of scrutiny of the student visa procedures, and introduced strict student monitoring policies and measures. In addition, the SEVIS monitoring and compliance system has altered the operation of international student service offices, affected the students they serve, and the operation of the universities enrolling international students. This study investigated the effects of SEVIS on graduate programs in science and engineering and their students. Information was gathered from respondents from the 60 universities having the highest population of intemational students in these fields, according to NSF. Respondents included department administrators, admissions officials, and SEVIS professionals. Data V111 were collected from 75 on-line survey respondents and in 21 semi-structured interviews. The results of this study suggest that many international students are negatively affected by SEVIS, impacting their ability to remain in-status and to understand how the system works. To counter this, department administrators, SEVIS professionals, and student advisors have increased their level of support for these students, providing them guidance on how to remain in-status and how to improve their social and academic experience in the United States. As a result, relatively few international students are deported for falling out-of-status in SEVIS. The data also made clear that program administrators and admissions officials have little knowledge about SEVIS, F -1 visa policies, and their influence on international enrollments. Finally, this study provided evidence of an increased workload for international student advisors and SEVIS professionals. Universities have had to hire additional staff, increase their information technology investment in linking home-grown student service systems with SEVIS, and proactively anticipate any hurdles that international students may have and resolve them as expeditiously as possible.
2031-01-01

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GREFBERG, HJALMAR, und Lucas Netzell. „A Knowledge Management System in a KnowledgeIntensive Business: An Exploratory Study in a GlobalICT Company“. Thesis, KTH, Hållbarhet och industriell dynamik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-189564.

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To increase competitive advantage, organizations are developing how they manage internalknowledge. This has been tackled by implementing various Knowledge Management Systems,which have been developed based on the needs of specific teams and/or latest trends. Suchapproach is problematic since it does not take into consideration what the users currentKnowledge Management practices are, nor if the system is relevant for a larger mass.The purpose of this thesis is to identify what requirements from users, regarding content andfeatures, are relevant to focus on when designing a Knowledge Management System, targetedtowards knowledge intensive businesses. To examine this, an exploratory research approachhas been applied on a global Information and Communication Technology (ICT) company.100 semi-structured interviews were conducted, with employees located at various globallocations and with varying job roles, in order to get a detailed picture of the user requirementson a Knowledge Management System. The interviews were later sorted and analysed by usingthe Technology Acceptance Model, and quantified by calculating the frequency count on thedifferent requirements. The findings were later reduced, based on their generalizability, inorder to facilitate a list of user requirements that are relevant to focus on, when constructing aknowledge management system for a knowledge intensive business.The results show that there are several aspects to consider in the creation of a KnowledgeManagement System, meant for a knowledge intensive business. The majority of these aspectsare related to increased findability of relevant & updated document and colleagues, receiveinformation about internal operations and lessons learnt from previous projects. Examples ofthese requirements are a semantic search engine, news feed and interconnected repositories.

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Raheem, Muhammad. „Mitigation of inter-domain Policy Violations at Internet eXchange Points“. Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-247908.

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Economic incentives and the need to efficiently deliver Internet have led to the growth of Internet eXchange Points (IXPs), i.e., the interconnection networks through which a multitude of possibly competing network entities connect to each other with the goal of exchanging traffic. At IXPs, the exchange of traffic between two or more member networks is dictated by the Border gateway Protocol (BGP), i.e., the inter-domain routing protocol used by network operators to exchange reachability information about IP prefix destinations. There is a common “honest-closed-world” assumption at IXPs that two IXP members exchange data traffic only if they have exchanged the corresponding reachability information via BGP. This state of affairs severely hinders security as any IXP member can send traffic to another member without having received a route from that member. Filtering traffic according to BGP routes would solve the problem. However, IXP members can install filters but the number of filtering rules required at a large IXP can easily exceed the capacity of the network devices. In addition, an IXP cannot filter this type of traffic as the exchanged BGP routes between two members are not visible to the IXP itself. In this thesis, we evaluated the design space between reactive and proactive approaches for guaranteeing consistency between the BGP control-plane and the data-plane. In a reactive approach, an IXP member operator monitors, collects, and analyzes the incoming traffic to detect if any illegitimate traffic exists whereas, in a proactive approach, an operator configures its network devices to filter any illegitimate traffic without the need to perform any monitoring. We focused on proactive approaches because of the increased security of the IXP network and its inherent simplified network management. We designed and implemented a solution to this problem by leveraging the emerging Software Defined Networking (SDN) paradigm, which enables the programmability of the forwarding tables by separating the controland dataplanes. Our approach only installs rules in the data-plane that allow legitimate traffic to be forwarded, dropping anything else. As hardware switches have high performance but low memory space, we decided to make also use of software switches. A “heavy-hitter” module detects the forwarding rules carrying most of the traffic and installs them into the hardware switch. The remaining forwarding rules are installed into the software switches.We evaluated the prototype in an emulated testbed using the Mininet virtualnetwork environment. We analyzed the security of our system with the help of static verification tests, which confirmed compliance with security policies. The results reveal that with even just 10% of the rules installed in the hardware switch, the hardware switch directly filter 95% of the traffic volume with nonuniform Internet-like traffic distribution workloads. We also evaluated the latency and throughput overheads of the system, though the results are limited by the accuracy of the emulated environment. The scalability experiments show that, with 10K forwarding rules, the system takes around 40 seconds to install and update the data plane. This is due to inherent slowness of emulated environment and limitations of the POX controller, which is coded in Python.
Ekonomiska incitament och behovet av att effektivt leverera Internet har lett till tillväxten av Internet eXchange Points (IXP), dvs de sammankopplingsnät genom vilka en mängd möjligen konkurrerande nätverksenheter förbinder varandra med målet att utbyta trafik. Vid IXPs dikteras utbytet av trafik mellan två eller flera medlemsnät av gränsgatewayprotokollet (BGP), dvs det inter-domänroutingprotokollet som används av nätoperatörer för att utbyta tillgänglighetsinformation om IP-prefixdestinationer. Det finns ett gemensamt antagande om "honest-closed-world" vid IXP, att två IXP-medlemmar endast utbyter datatrafik om de har bytt ut motsvarande tillgänglighetsinformation via BGP. Detta tillstånd försvårar allvarligt säkerheten eftersom varje IXP-medlem kan skicka trafik till en annan medlem utan att ha mottagit en rutt från den medlemmen. Filtrering av trafik enligt BGP-vägar skulle lösa problemet. IXPmedlemmar kan dock installera filter men antalet filtreringsregler som krävs vid en stor IXP kan enkelt överskrida nätverksenheternas kapacitet. Dessutom kan en IXP inte filtrera denna typ av trafik eftersom de utbytta BGP-vägarna mellan två medlemmar inte är synliga för IXP-enheten själv.I denna avhandling utvärderade vi utrymmet mellan reaktiva och proaktiva metoder för att garantera överensstämmelse mellan BGP-kontrollplanet och dataplanet. I ett reaktivt tillvägagångssätt övervakar, samlar och analyserar en inkommande trafik en IXP-medlem för att upptäcka om någon obehörig trafik finns, medan en operatör konfigurerar sina nätverksenheter för att filtrera någon obehörig trafik utan att behöva övervaka . Vi fokuserade på proaktiva tillvägagångssätt på grund av den ökade säkerheten för IXP-nätverket och dess inneboende förenklad nätverkshantering. Vi konstruerade och genomförde en lösning på detta problem genom att utnyttja det nya SDN-paradigmet (Software Defined Networking), vilket möjliggör programmerbarheten hos vidarebefordringsborden genom att separera kontrolloch dataplanerna. Vårt tillvägagångssätt installerar bara regler i dataplanet som tillåter legitim trafik att vidarebefordras, släppa allt annat. Eftersom hårdvaruomkopplare har hög prestanda men lågt minne, bestämde vi oss för att även använda programvaruomkopplare. En "heavy-hitter" -modul detekterar vidarebefordringsreglerna som transporterar större delen av trafiken och installerar dem i hårdvaruomkopplaren. De återstående spolningsreglerna installeras i programvaruomkopplarna.Vi utvärderade prototypen i en emulerad testbädd med hjälp av virtuella nätverksmiljö Mininet. Vi analyserade säkerheten för vårt system med hjälp av statiska verifieringsprov, vilket bekräftade överensstämmelse med säkerhetspolicyerna. Resultaten visar att med bara 10% av de regler som installerats i hårdvaruomkopplaren filtrerar hårdvaruomkopplaren direkt 95% av trafikvolymen med ojämn Internetliknande trafikfördelningsarbete. Vi utvärderade också latensoch genomströmningsomkostnaderna för systemet, även om resultaten begränsas av noggrannheten hos den emulerade miljön. Skalbarhetsexperimenten visar att med 10K-vidarebefordringsregler tar systemet cirka 40 sekunder för att installera och uppdatera dataplanet. Detta beror på inneboende långsamma emulerade miljöer och begränsningar av POX-kontrollern, som kodas i Python.

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Holmner, Marlene Amanda. „A critical analysis of information and knowledge societies with specific reference to the interaction between local and global knowledge systems“. Thesis, Pretoria : [s.n.], 2008. http://upetd.up.ac.za/thesis/available/etd-11102008-143543/.

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Shahid, Zeeshan. „Social Networks, Group Cohesion & Collaborative Learning : A Case Study of an International English Language Testing System (IELTS) Training Institute“. Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-55587.

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The study examines the role of social networks’ in collaborative group working within a blended setting. Lingua Franca, Pakistan, an International English Language Testing System (IELTS) training institute, has been investigated as a case study for the aforementioned research question. Focus groups consisting of the institute’s students and training staff were solicited for primary data collection. Theories of learning, social comparison, social exchange and connectivism theory provided the theoretical understanding for the study along with relevant extant literature. Content analysis has been used to analyze and interpret the data. The findings shed light on the myriad yet significant role social networks play in enhancing collaborative group work through their inherent interactive and dynamic features, which unlocks opportunities for self-validation, self-improvement and self-development. The study thus opens new avenues of research into this less studied area of social networks and collaborative group working with respect to learning

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Vassell-Webb, Carlene. „Strategies for Implementation of Electronic Health Records“. ScholarWorks, 2019. https://scholarworks.waldenu.edu/dissertations/7258.

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Implementation of electronic health records (EHRs) is a driver for the improvement of health care and the reduction of health care costs. Developing countries face substantial challenges in adopting EHRs. The complex adaptive system conceptual framework was used to guide this single case study to explore strategies that health care leaders used to successfully implement the EHR system. Data were collected from 6 health care leaders from an island in the Caribbean using a semistructured interview technique. Data were analyzed using the Bengtsson's 4-stage data analysis process, which includes decontextualization, recontextualization, categorization, and compilation. The results of the study yielded 5 main themes: training, increased staffing, monitoring, identifying organizational gaps, and time. The implications of the study for positive social change include the potential to improve the standards of care provided to promote improved patient outcomes by using the strategies identified in this study to successfully implement the EHR system.

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Cooper, A. K. (Antony Kyle). „Standards for exchanging digital geo-referenced information“. Diss., University of Pretoria, 1993. http://hdl.handle.net/2263/23151.

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The purpose of this dissertation is to assess digital geo-referenced information and standards for exchanging such information, especially the South African National Exchange Standard (NES). The process of setting up a standard is exacting. On the one hand, the process demands a thorough scrutiny and analysis of the objects to be standardised and of all related concepts. This is a prerequisite for ensuring that there is unanimity about their meaning and inter-relationships. On the other hand, the process requires that the standard itself be enunciated as succinctly, comprehensibly and precisely as possible. This dissertation addresses both these facets of the standards process in the context of standards for exchanging digital geo-referenced information. The dissertation begins with an analysis of geo-referenced information in general, including digital geo-referenced information. In chapters 2 and 3, the various aspects of such information are scrutinised and evaluated in more detail. The examination of concepts is backed up by a comprehensive Glossary of terms in the domain under discussion. Chapter 4 examines the nature of standards. It also proposes a novel way to approach a standard for the exchange of digital geo-referenced information: namely, that it can be viewed as a language and can accordingly be specified by a grammar. To illustrate the proposal, NES is fully specified, using the Extended Backus-Naur Form notation, in an Appendix. Apart from the advantages of being a succinct and precise formal specification, the approach also lends itself to deploying standard tools such as Lex and yacc for conformance testing and for developing interfaces to NES, as illustrated in a second appendix. As a final theme of the dissertation, an evaluation of such standards is provided. Other standards that have been proposed elsewhere for purposes similar to that of NES are surveyed in chapter 5. In chapter 6, features of NES are highlighted, including the fact that it takes a relational approach. Chapter 7 concludes the dissertation, summarising the work to date, and looking ahead to future work. AFRIKAANS : Die doel van hierdie verhandling is om versyferde geo-verwysde inligting en standaarde vir die uitruil van sulke inligting te ondersoek, met spesifieke verwysing na die Suid- Afrikaanse Nasionale Uitruilstandaard (NES). Die proses om ’n standaard op te stel is veeleisend. Aan die een kant vereis die proses ’n volledige bestudering en ontleding van die objekte wat gestandaardiseer gaan word, asook van al die verwante konsepte. Hierdie is ’n voorvereiste om te verseker dat daar oor hul betekenisse en onderlinge verwantskappe eenstemmigheid bestaan. Aan die ander kant vereis die proses dat die standaard so kernagtig, volledig en presies moontlik gestel moet word. Hierdie verhandeling spreek beide hierdie fasette van die standaardiseringsproses aan, en wel in die konteks van standaarde vir die uitruil van versyferde geo-verwysde inligting. Dié verhandling begin met ’n oorhoofse analise van geo-verwysde inligting, insluitend versyferde geo-verwysde inligting. In hoofstukke 2 en 3 word verskeie aspekte van dié inligting in meer detail ondersoek en geëvalueer. Hierdie ondersoek van konsepte word deur ’n omvattende woordelys van terme in die veld onder bespreking gesteun. Hoofstuk 4 ondersoek die aard van standaarde. Dit stel ook ’n nuwe manier voor om ’n standaard vir die uitruil van versyferde geo-verwysde inligting te benader, naamlik dat dit as ’n taal beskou kan word, en dat dit gevolglik deur middel van ’n grammatika gespesifiseer kan word. Om die voorstel te illustreer, word NES volledig in ’n aanhangsel deur middel van die Uitgebreide Backus-Naur Vorm notasie gespesifiseer. Afgesien van die voordeel van ’n kernagtige en presiese formele spesifikasie, ondersteun die benadering ook standaardgereedskap soos Lex en yacc wat vir konformeringstoetsing en vir NES koppelvlakke gebruik kan word, soos in ’n tweede aanhangsel illustreer word. As ’n finale tema van die verhandeling word ’n evaluasie van tersaaklike standaarde voorsien. Standaarde wat elders vir soortgelyke doeleindes aan dié van NES voorgestel is, word oorsigtelik in hoofstuk 5 beskou. In hoofstuk 6 word kenmerkende eienskappe van NES uitgelig, insluitend die feit dat dit op ’n relasionele benadering gebaseer is. Hoofstuk 7 sluit die verhandeling af met ’n opsomming van werk tot op datum en ’n blik op toekomstige werk.
Dissertation (MSc)--University of Pretoria, 1993.
Computer Science
unrestricted

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Grumert, Ellen. „Cooperative Variable Speed Limit Systems : Modeling and Evaluation using Microscopic Traffic Simulation“. Licentiate thesis, Linköpings universitet, Kommunikations- och transportsystem, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-106926.

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During the last decades the road traffic has increased tremendously leading to congestion, safety issues and increased environmental impacts. As a result, many countries are continuously trying to find improvements and new solutions to solve these issues. One way of improving the traffic conditions is by the use of so called intelligent transport systems, where information and communication technologies are being used for traffic management and control. One such system commonly used for traffic management purposes are variable speed limit systems. These systems are making use of signs to show speed limits adjusted to the prevailing road or traffic conditions. The rapid development in telecommunication technologies has enabled communication between vehicles, and between vehicles and the infrastructure, so called cooperative systems. This opens up for the possibility to further improve the performance of a standard variable speed limit system by adding cooperative system features. The overall aim of this thesis is to investigate the potential benefits of incorporating infrastructure to vehicle communication and autonomous control to an existing variable speed limit system. We show how such a cooperative variable speed limit system can be modeled and evaluated by the use of microscopic traffic simulation. Results from the evaluation indicate increased flow harmonization in terms of narrowing of the acceleration rate distribution and reduced exhaust emissions. Further, we compare four control algorithms for deciding on speed limits in variable speed limit systems. Differences in the resulting traffic performance between the control algorithms are quantified by the use of microscopic traffic simulation. It is concluded that the dened objective for the algorithms have a decisive influence on the effects of the variable speed limit system. The results from this thesis are useful for further development of variable speed limit systems, both with respect to incorporating cooperative features and by improving the speed setting control algorithms.

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Lei, Jiansheng. „Using graph theory to resolve state estimator issues faced by deregulated power systems“. [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1292.

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Azami, Ikram El. „Ingéniérie des Systèmes d'Information Coopératifs, Application aux Systèmes d'Information Hospitaliers“. Thesis, Valenciennes, 2012. http://www.theses.fr/2012VALE0013.

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Dans cette thèse, nous traitons les systèmes d’information hospitaliers (SIH), nous analysons leurs problématiques de conception, d’interopérabilité et de communication, dans l’objectif de contribuer à la conception d’un SIH canonique, coopératif, et communicant, ainsi de modéliser les échanges entre ses composants et également avec les autres systèmes impliqués dans la prise en charge du patient dans un réseau de soin. Nous proposons une structure et un modèle de conception d’un SIH canonique en se basant sur trois concepts principaux responsables de la production de l’information médicale, à savoir, le cas pathologique, le Poste de Production de l’Information Médicale (PPIM) et l’activité médicale elle même. Cette dernière, étant modélisée sur la notion d’arbre, permettra une meilleure structuration du processus de soin.Autant, dans l’optique d'assurer la continuité de soins, nous fournissons un modèle d’échange de données médicales à base du standard XML. Ce modèle consiste en un ensemble de données pertinentes organisées autours de cinq catégories : les données du patient, les données sur les antécédents du patient, les données de l’activité médicale, les données des prescriptions médicales et les données sur les documents médicaux (images, compte rendu…).Enfin, nous décrivons une solution d’intégration des systèmes d’information hospitaliers. La solution est inspirée de l’ingénierie des systèmes d’information coopératifs et consiste en une architecture de médiation structurée en trois niveaux : le niveau système d’information, le niveau médiation, et le niveau utilisateur. L’architecture propose une organisation modulaire des systèmes d'information hospitaliers et contribue à satisfaire l’intégration des données, des fonctions et du workflow de l’information médicale
In this thesis, we deal with hospital information systems (HIS), we analyze their design issues, interoperability and communication, with the aim of contributing to the design of a canonical, cooperative, and communicative HIS, and model the exchanges between its components and also with other systems involved in the management of patient in a healthcare network.We propose a structure and a conceptual model of a canonical HIS based on three main concepts involved in the production of healthcare data, namely, the pathological case, the Production Post of Healthcare Data (PPHD) and medical activity itself. The latter, being modeled as a tree, will allow better structuring of the care process.However, in view of ensuring continuity of care, we provide an XML-based model for exchanging medical data. This model consists of a set of relevant data organized around five categories: patient data, data on patient history, data of medical activity, data of medical prescriptions and medical records data (images, reporting ...).Finally, we describe a solution for integrating hospital information systems. The solution is inspired by the engineering of cooperatives information systems and consists of mediation-based architecture, structured into three levels: the level of information systems, the level of mediation, and the user level. The architecture offers a modular organization of hospital information systems and helps to insure data, function and workflow integration

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Johnson, Allen P., Bryan Breeden, Willard Earl Duff, Paul F. Fishcer, Nathan Hornback, David C. Leiker, Parker Carlisle et al. „Ship Anti Ballistic Missile Response (SABR)“. Monterey, California. Naval Postgraduate School, 2006. http://hdl.handle.net/10945/7268.

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Includes supplemental material.
Based on public law and Presidential mandate, ballistic missile defense development is a front-burner issue for homeland defense and the defense of U.S. and coalition forces abroad. Spearheaded by the Missile Defense Agency, an integrated ballistic missile defense system was initiated to create a layered defense composed of land-, air-, sea-, and space-based assets. The Ship Anti-Ballistic Response (SABR) Project is a systems engineering approach that suggests a conceptualized system solution to meet the needs of the sea portion of ballistic missile defense in the 2025-2030 timeframe. The system is a unique solution to the sea-based ballistic missile defense issue, combining the use of a railgun interceptor and a conformable aperture skin-of-the-ship radar system.

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Jarolín, Michael. „Analýza a návrh rámce webové aplikace pro obchodování na kapitálových trzích“. Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-198454.

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Thesis is focused on trading information systems in capital markets. The aim of this thesis is to analyze trading information systems and create model of hypothetical online trading platform. The model should consolidate the knowledge of the existing solutions for trading in the capital market. The thesis is divided into three parts. The theoretical part provides a basic description of trading information systems in the capital market. Second, analytic part of the thesis is focused on structure of brokerage trading information system. The first analysis is focused on analyze portfolio of the current trading platforms offered by brokerage. The second analysis is focused on analyze internal functionality structure of the selected group of trading platform. The aim of this analysis is to find and describe the portfolio functionalities of trading platforms and identified the basis or standard functionalities of trading platforms. Resulting data from second analysis are important for third part for this thesis. Third, main part of this thesis is devoted on creating model of hypothetical online trading platform. This part consist several sets of models and together created one complex model of hypothetical online trading platform.

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Dušek, Martin. „Přesunutí informačního systému do Cloudu“. Master's thesis, Vysoká škola ekonomická v Praze, 2015. http://www.nusl.cz/ntk/nusl-264271.

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This thesis deals with the theme Moving information system in the cloud. The paper first describes the issue theoretically. It is defined and characterized by cloud computing as the current major trend in the implementation of information technology. A description of individual actors and models emerging in cloud computing, its brief history, related technology underlying or expand cloud computing, client issues and reference architecture model. It also includes an analysis of the current state offered cloud services, compared to open source and proprietary solutions, and was implemented insight into the upcoming National Strategy for Cloud Computing The case study move e-mail system to a hosted private cloud is demonstrated by the complexity of the entire process and the rugged environment of government institutions. On the basis of theoretical knowledge and case studies in the last chapter proposes a model that would in general help in deciding whether the institutions of government information systems migrate to cloud computing, which is also in line with the forthcoming national strategy.

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Pina, Hugo Rafael Matos. „Metodologia BIM na gestão da manutenção de uma estação elevatória“. Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/14955.

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Mestrado em Engenharia Civil
A complexidade crescente dos projetos de construção, leva à correspondente multiplicidade e exigência de todo o processo, quer durante a fase de conceção e construção, quer durante a fase de exploração das edificações/instalações. A importância da fase de operação e manutenção para o aumento da durabilidade e para a redução de custos das instalações, associada à potencialidade da metodologia Building Information Modeling (BIM), conduz ao desenvolvimento de novas formas de gestão integrada do edificado. Esta metodologia possui os requisitos necessários para ser integrada na gestão de qualquer edifício ou instalação, não só pela sua capacidade gráfica e de visualização, mas sobretudo pelas potencialidades que a base de dados criada oferece, contendo informação parametrizada de cada um dos componentes presentes na mesma. O estudo desenvolvido pretende contribuir para a implementação do conceito do Facility Management (FM) em Portugal, associado ao Building Information Modeling, integrando a gestão das instalações com o modelo tridimensional da instalação. Para o caso de estudo, foi escolhida uma estação elevatória de águas residuais, que engloba equipamentos que necessitam de manutenção ao longo da sua vida de serviço, sendo a sua estrutura constituída por anéis de betão armado, betonados in situ. Foi desenvolvido um modelo tridimensional da instalação, utilizando o software de modelação Autodesk Revit 2014, com todas as especialidades e equipamentos, no qual se introduziram todas as informações relativas a cada elemento do modelo. De seguida, criou-se uma base de dados, onde é possível alojar estas informações. A partir do próprio software de modelação, utilizando o Construction Operation Building information exchange (COBie), foi possível criar bases de dados que, posteriormente, na fase de operação e manutenção, possam ser utilizadas pelos responsáveis destas fases. Por fim, a informação inserida na fase de modelação da instalação é exportada para o software utilizado na gestão e manutenção da instalação. No presente caso de estudo utilizou-se o IBM Maximo, através do qual se efetuou a simulação da gestão dos ativos após a qual se fez a comparação entre esta metodologia e a usualmente utilizada pelas empresas.
The construction project’s complexity leads to the multiplicity and demanding of the entire process. Whether in the concept and construction phase, or in phase of exploration of an infrastructure, the importance of the operation and maintenance for the increase of the durability and cost reduction of the infrastructure, can be associated to the potential of the Building Information Modeling (BIM) methodology, leading to the development of new management procedures, integrated in the buildings. The BIM methodology has the necessary requirements to be integrated in the management of any building, infrastructure or installation, not only due to the graphical capacity and visualization but above all for the possibilities introduced by the defined database that includes the parameterized information of each components. The study developed aims to contribute to the implementation of the concept of Facility Management (FM) in Portugal, associated with Building Information Modeling, integrating the management of installations with three-dimensional model of the installation. For the case study, a wastewater pumping station was selected, which includes equipment that needs maintenance during its service life. The structure was defined by rings of reinforced concrete, casted in situ. A three-dimensional model of the installation was developed using Autodesk Revit 2014, a modeling software with all specialties and equipment, in which were introduced all the information for each model element. Then, a database where it is possible to accommodate this information was created. It was possible, from the own modeling software, using the Construction Operation Building information exchange (COBie), to export databases that later, in the operation and maintenance phase, can be used by those responsible for these phases. Finally, the information included in the installation modeling phase was exported to the software used in the management and maintenance of the facility, which in the case study was the IBM Maximo. Finally was carried out the management of the assets and was performed a simplified comparison between the methodology developed and the commonly used by the companies.

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Navas, Juan Moreno. „Three-dimensional hydrodynamic models coupled with GIS-based neuro-fuzzy classification for assessing environmental vulnerability of marine cage aquaculture“. Thesis, University of Stirling, 2010. http://hdl.handle.net/1893/2580.

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There is considerable opportunity to develop new modelling techniques within a Geographic Information Systems (GIS) framework for the development of sustainable marine cage culture. However, the spatial data sets are often uncertain and incomplete, therefore new spatial models employing “soft computing” methods such as fuzzy logic may be more suitable. The aim of this study is to develop a model using Neuro-fuzzy techniques in a 3D GIS (Arc View 3.2) to predict coastal environmental vulnerability for Atlantic salmon cage aquaculture. A 3D hydrodynamic model (3DMOHID) coupled to a particle-tracking model is applied to study the circulation patterns, dispersion processes and residence time in Mulroy Bay, Co. Donegal Ireland, an Irish fjard (shallow fjordic system), an area of restricted exchange, geometrically complicated with important aquaculture activities. The hydrodynamic model was calibrated and validated by comparison with sea surface and water flow measurements. The model provided spatial and temporal information on circulation, renewal time, helping to determine the influence of winds on circulation patterns and in particular the assessment of the hydrographic conditions with a strong influence on the management of fish cage culture. The particle-tracking model was used to study the transport and flushing processes. Instantaneous massive releases of particles from key boxes are modelled to analyse the ocean-fjord exchange characteristics and, by emulating discharge from finfish cages, to show the behaviour of waste in terms of water circulation and water exchange. In this study the results from the hydrodynamic model have been incorporated into GIS to provide an easy-to-use graphical user interface for 2D (maps), 3D and temporal visualization (animations), for interrogation of results. v Data on the physical environment and aquaculture suitability were derived from a 3- dimensional hydrodynamic model and GIS for incorporation into the final model framework and included mean and maximum current velocities, current flow quiescence time, water column stratification, sediment granulometry, particulate waste dispersion distance, oxygen depletion, water depth, coastal protection zones, and slope. The Neuro-fuzzy classification model NEFCLASS–J, was used to develop learning algorithms to create the structure (rule base) and the parameters (fuzzy sets) of a fuzzy classifier from a set of classified training data. A total of 42 training sites were sampled using stratified random sampling from the GIS raster data layers, and the vulnerability categories for each were manually classified into four categories based on the opinions of experts with field experience and specific knowledge of the environmental problems investigated. The final products, GIS/based Neuro Fuzzy maps were achieved by combining modeled and real environmental parameters relevant to marine fin fish Aquaculture. Environmental vulnerability models, based on Neuro-fuzzy techniques, showed sensitivity to the membership shapes of the fuzzy sets, the nature of the weightings applied to the model rules, and validation techniques used during the learning and validation process. The accuracy of the final classifier selected was R=85.71%, (estimated error value of ±16.5% from Cross Validation, N=10) with a Kappa coefficient of agreement of 81%. Unclassified cells in the whole spatial domain (of 1623 GIS cells) ranged from 0% to 24.18 %. A statistical comparison between vulnerability scores and a significant product of aquaculture waste (nitrogen concentrations in sediment under the salmon cages) showed that the final model gave a good correlation between predicted environmental vi vulnerability and sediment nitrogen levels, highlighting a number of areas with variable sensitivity to aquaculture. Further evaluation and analysis of the quality of the classification was achieved and the applicability of separability indexes was also studied. The inter-class separability estimations were performed on two different training data sets to assess the difficulty of the class separation problem under investigation. The Neuro-fuzzy classifier for a supervised and hard classification of coastal environmental vulnerability has demonstrated an ability to derive an accurate and reliable classification into areas of different levels of environmental vulnerability using a minimal number of training sets. The output will be an environmental spatial model for application in coastal areas intended to facilitate policy decision and to allow input into wider ranging spatial modelling projects, such as coastal zone management systems and effective environmental management of fish cage aquaculture.

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Marks, Géraldine. „Quelle place pour le droit dans la gestion des urgences sanitaires de portée internationale ? : esquisse d’une gouvernance des risques biologiques par l’échange d’informations“. Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM1108.

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Les urgences sanitaires de portée internationale font partie de ces risques que les Etats, pris isolément, ne peuvent gérer seul pour assurer la permanence du bien-être de leur population. Cette thèse explore alors la possibilité de pallier l'insuffisante intégration de la communauté internationale en matière de gestion de ce qui sera considéré comme des risques biologiques, par l'établissement d'un système de gouvernance internationale et globale fondée sur l'échange d'informations. Pour le fonctionnement de ce système, l'information doit être produite mais elle doit également avoir la possibilité juridique d'être échangée. Dans ce contexte, l'échange d'informations se doit d'être organisé de manière à tenir compte des caractères juridiques des informations utiles à la gestion de ces risques. L'étude des conditions de cet échange met alors en évidence le rôle essentiel du droit dans l'organisation des conditions de l'efficience de ces échanges, et dès lors dans le fonctionnement de ce système de gouvernance. Elle en montre aussi les limites
Public health emergencies of international concern are part of those risks that can not be efficiently managed by States on their own to ensure the longstanding well-being of their population. This thesis explores the possibility to supersede the international community's lack of integration for the management of what will be considered as biological risks, by the designing of an international and global governance system based on the exchange of information. For the functionning of this system, information will need to be produced and have the capacity to be exchanged. In this context, information exchanges ought to be organised, in order to take into account the legal specifities of the information involved. The study will thus aim at emphasizing on the essential role of law in the organisation of those exchanges but also on its limitations

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Nguyen-Dobinsky, Trong-Nghia. „Konzept einer an semantischen Kriterien orientierten Kommunikation für medizinische Informationssysteme“. Doctoral thesis, Humboldt-Universität zu Berlin, Medizinische Fakultät - Universitätsklinikum Charité, 1998. http://dx.doi.org/10.18452/14352.

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Einleitung In einem größeren Universitätsklinikum wie in der Charité sind EDV-gestützte Verfahren in verschiedenen Einrichtungen und für verschiedene Aufgaben im Einsatz: Verwaltung, Krankenversorgung, Forschung und Lehre. Diese Subsysteme sind in der Regel nicht in der Lage, Daten untereinander so auszutauschen, daß die in den Daten enthaltene Semantik nicht verlorengeht. Die Ursache liegt im wesentlichen in der Komplexität und in der Unschärfe der medizinischen Informationen. Medizinische Standards (HL7, DICOM, SNOMED, ICD, ICPM, ...) lassen sich für den Austausch von Daten verwenden, die gut formalisierbar und mit einer klaren Bedeutung behaftet sind. Nicht formalisierbare Daten, die z. B. in einem Befund oft vorkommen, lassen sich nicht ohne weiteres mit diesen Standards darstellen. Ziel Entwicklung eines Konzeptes für den Austausch medizinischer Daten, das die o. g. Probleme vermeidet. Material und Methoden Die Analyse der vorhandenen Subsysteme, Standards und Konzepte zeigt, daß das Konzept einerseits eine sehr einfache Syntax und eine simple Struktur aufweisen muß. Andererseits muß die medizinische Semantik voll erhalten bleiben. Als Vorbild kann die relationale Datenbank dienen, die mit einem Datentyp (Relation bzw. Tabelle) und einem einzigen Operator (SELECT) auf diesen Datentyp auskommt. Ergebnisse Das Konzept ist objektorientiert. Es enthält nur einen Datentyp. Das ist das AMICI-Objekt (AMICI: Architecture for Medical Information Exchange and Communication Interface). Über dieses AMICI-Objekt wird der gesamte Datenaustausch vorgenommen. Kann das Empfängersystem ein Objekt nicht oder nicht korrekt interpretieren, so wird die Interpretation vom Sendesystem übernommen. Ein Subsystem wird im Netzwerk über einen medizinischen Kontext angeschlossen, der das Interessengebiet und die Fähigkeit des Subsystems beschreibt. Das Subsystem kann an Hand der im Netz bekannten medizinischen Kontexte feststellen, welche weiteren Subsysteme für den eigenen Zweck interessant sein könnten. Alle AMICI-Objekte erhalten eine weltweit eindeutige Identifikation, so daß die Daten aus verschiedenen Institutionen, auch international, miteinander gemischt werden können. Diskussion Das Konzept kann als Basis für weitere Dienstleitungen in einem Klinikum bzw. einem Krankenhaus dienen. Namentlich zu nennen sind telemedizinische Anwendungen, bei denen nicht nur die Kommunikation zwischen Ärzten, sondern auch zwischen Patienten und Arzt möglich ist. Weiterhin betrifft dies den Einsatz von Software-Agenten, die sich um den Informationsbedarf eines Arztes individuell kümmern.
Introduction Large hospitals like the University hospital Charité use in different units different information systems for recording patient and medical data. There are also different tasks: administration, healthcare, research and education. These medical information systems are often called subsystems. They are usually not able to exchange data without lost of semantic. The complexity and the variability of medical terminology cause this problem. Existing medical standards (e. g. HL7, DICOM, SNOMED, ICD, ICPM, ...) are helpful for well formalised terms. Non-formalised terms that are often used in diagnostic reports can not be represented by existing standards. Aims Development of a concept for medical information exchange which fulfills the requirements mentioned above. Material and Methods The system analysis that is performed based on existing subsystems, medical standards and concepts provides two essential requirements. On the one hand the syntax of such standard must be extremely simple. On the other hand the standard must be able to transfer extremely complex semantics. As an example relational databases (RDB) provide a good idea of such simple syntax and complex semantics. RDB's include only one data type. It is called relation or table. To manipulate tables one needs only one operation. That is the SELECT command in SQL. Result The concept is object oriented. It includes only one object called AMICI-object like RDB's (AMICI: Architecture for Medical Information Exchange and Communication Interface). Data exchange is completely performed by these AMICI-objects. If the receiving subsystem is not able to interpret and represent an object, the sending subsystem will take over this task. Within a network a subsystem uses a special AMICI-object called medical context to describe its features and its area of interest. A subsystem can inquire medical contexts to explore installed and running subsystems in the network. An international unique identifier identifies every AMICI object so that you can mix objects provided by different international institutions, e. g. to use them in multi-center-studies. Discussion This concept can also be used as a basic service for higher level applications in a hospital. Two of them are telemedicine and software agents. Telemedicine is not only a tool for physicians. It should be also a tool for communication and interaction between patient and physician. Physicians can use personal software agents for information acquisition, which meets exactly his specific requirements.

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Adeogun, Oluseun. „Informatics for devices within telehealth systems for monitoring chronic diseases“. Thesis, Cranfield University, 2011. http://dspace.lib.cranfield.ac.uk/handle/1826/6493.

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Preliminary investigation at the beginning of this research showed that informatics on point-of-care (POC) devices was limited to basic data generation and processing. This thesis is based on publications of several studies during the course of the research. The aim of the research is to model and analyse information generation and exchange in telehealth systems and to identify and analyse the capabilities of these systems in managing chronic diseases which utilise point-of-care devices. The objectives to meet the aim are as follows: (i) to review the state-of-the-art in informatics and decision support on point-of-care devices. (ii) to assess the current level of servitization of POC devices used within the home environment. (iii) to identify current models of information generation and exchange for POC devices using a telehealth perspective. (iv) to identify the capabilities of telehealth systems. (v) to evaluate key components of telehealth systems (i.e. POC devices and intermediate devices). (vi) to analyse the capabilities of telehealth systems as enablers to a healthcare policy. The literature review showed that data transfer from devices is an important part of generating information. The implication of this is that future designs of devices should have efficient ways of transferring data to minimise the errors that may be introduced through manual data entry/transfer. The full impact of a servitized model for point-of-care devices is possible within a telehealth system, since capabilities of interpreting data for the patient will be offered as a service (c.f. NHS Direct). This research helped to deduce components of telehealth systems which are important in supporting informatics and decision making for actors of the system. These included actors and devices. Telehealth systems also help facilitate the exchange of data to help decision making to be faster for all actors concerned. This research has shown that a large number of capability categories existed for the patients and health professionals. There were no capabilities related to the caregiver that had a direct impact on the patient and health professional. This was not surprising since the numbers of caregivers in current telehealth systems was low. Two types of intermediate devices were identified in telehealth systems: generic and proprietary. Patients and caregivers used both types, while health professionals only used generic devices. However, there was a higher incidence of proprietary devices used by patients. Proprietary devices possess features to support patients better thus promoting their independence in managing their chronic condition. This research developed a six-step methodology for working from government objectives to appropriate telehealth capability categories. This helped to determine objectives for which a telehealth system is suitable.

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Pravlovský, Petr. „Informační systém pro nákladový index v kamionové dopravě“. Master's thesis, Vysoká škola ekonomická v Praze, 2012. http://www.nusl.cz/ntk/nusl-165255.

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The topic of the thesis is costs in truck transport. There is analyzed theme Progress of costs in time, using indexes. The theoretical part is focused on the methodology for calculating the cost index published by the Czech Association of Road Carriers Česmad Bohemia and compared with several foreign indexes. The practical part has two objectives. The first focuses on the design of a new methodology that will be more accurate and reflect the true situation. The second objective of this methodology is to design basic informatics support, for both users, indexes users and persons, who are responsible for publishing these statistics. The summary points to the possibilities of alteration of the current designed index methodology and the potential for cooperation of Česmad Bohemia and Czech Statistical Office.

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Pennanen, H. (Harri). „Coordinated beamforming in cellular and cognitive radio networks“. Doctoral thesis, Oulun yliopisto, 2015. http://urn.fi/urn:isbn:9789526208978.

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Abstract This thesis focuses on the design of coordinated downlink beamforming techniques for wireless multi-cell multi-user multi-antenna systems. In particular, cellular and cognitive radio networks are considered. In general, coordinated beamforming schemes aim to improve system performance, especially at the cell-edge area, by controlling inter-cell interference. In this work, special emphasis is put on practical coordinated beamforming designs that can be implemented in a decentralized manner by relying on local channel state information (CSI) and low-rate backhaul signaling. The network design objective is the sum power minimization (SPMin) of base stations (BSs) while providing the guaranteed minimum rate for each user. Decentralized coordinated beamforming techniques are developed for cellular multi-user multiple-input single-output (MISO) systems. The proposed iterative algorithms are based on classical primal and dual decomposition methods. The SPMin problem is decomposed into two optimization levels, i.e., BS-speciﬁc subproblems for the beamforming design and a network-wide master problem for the inter-cell interference coordination. After the acquisition of local CSI, each BS can independently compute its transmit beamformers by solving the subproblem via standard convex optimization techniques. Interference coordination is managed by solving the master problem via a traditional subgradient method that requires scalar information exchange between the BSs. The algorithms make it possible to satisfy the user-speciﬁc rate constraints for any iteration. Hence, delay and signaling overhead can be reduced by limiting the number of performed iterations. In this respect, the proposed algorithms are applicable to practical implementations unlike most of the existing decentralized approaches. The numerical results demonstrate that the algorithms provide signiﬁcant performance gains over zero-forcing beamforming strategies. Coordinated beamforming is also studied in cellular multi-user multiple-input multiple-output (MIMO) systems. The corresponding non-convex SPMin problem is divided into transmit and receive beamforming optimization steps that are alternately solved via successive convex approximation method and the linear minimum mean square error criterion, respectively, until the desired level of convergence is attained. In addition to centralized design, two decentralized primal decomposition-based algorithms are proposed wherein the transmit and receive beamforming designs are facilitated by a combination of pilot and backhaul signaling. The results show that the proposed MIMO algorithms notably outperform the MISO ones. Finally, cellular coordinated beamforming strategies are extended to multi-user MISO cognitive radio systems, where primary and secondary networks share the same spectrum. Here, network optimization is performed for the secondary system with additional interference constraints imposed for the primary users. Decentralized algorithms are proposed based on primal decomposition and an alternating direction method of multipliers
Tiivistelmä Tämä väitöskirja keskittyy yhteistoiminnallisten keilanmuodostustekniikoiden suunnitteluun langattomissa monisolu- ja moniantennijärjestelmissä, erityisesti solukko- ja kognitiiviradioverkoissa. Yhteistoiminnalliset keilanmuodostustekniikat pyrkivät parantamaan verkkojen suorituskykyä kontrolloimalla monisoluhäiriötä, erityisesti tukiasemasolujen reuna-alueilla. Tässä työssä painotetaan erityisesti käytännöllisten yhteistoiminnallisten keilanmuodostustekniikoiden suunnittelua, joka voidaan toteuttaa hajautetusti perustuen paikalliseen kanavatietoon ja tukiasemien väliseen informaationvaihtoon. Verkon suunnittelutavoite on minimoida tukiasemien kokonaislähetysteho samalla, kun jokaiselle käyttäjälle taataan tietty vähimmäistiedonsiirtonopeus. Hajautettuja yhteistoiminnallisia keilanmuodostustekniikoita kehitetään moni-tulo yksi-lähtö -solukkoverkoille. Oletuksena on, että tukiasemat ovat varustettuja monilla lähetysantenneilla, kun taas päätelaitteissa on vain yksi vastaanotinantenni. Ehdotetut iteratiiviset algoritmit perustuvat klassisiin primaali- ja duaalihajotelmiin. Lähetystehon minimointiongelma hajotetaan kahteen optimointitasoon: tukiasemakohtaisiin aliongelmiin keilanmuodostusta varten ja verkkotason pääongelmaan monisoluhäiriön hallintaa varten. Paikallisen kanavatiedon hankkimisen jälkeen jokainen tukiasema laskee itsenäisesti lähetyskeilansa ratkaisemalla aliongelmansa käyttäen apunaan standardeja konveksioptimointitekniikoita. Monisoluhäiriötä kontrolloidaan ratkaisemalla pääongelma käyttäen perinteistä aligradienttimenetelmää. Tämä vaatii tukiasemien välistä informaationvaihtoa. Ehdotetut algoritmit takaavat käyttäjäkohtaiset tiedonsiirtonopeustavoitteet jokaisella iterointikierroksella. Tämä mahdollistaa viiveen pienentämisen ja tukiasemien välisen informaatiovaihdon kontrolloimisen. Tästä syystä ehdotetut algoritmit soveltuvat käytännön toteutuksiin toisin kuin useimmat aiemmin ehdotetut hajautetut algoritmit. Numeeriset tulokset osoittavat, että väitöskirjassa ehdotetut algoritmit tuovat merkittävää verkon suorituskyvyn parannusta verrattaessa aiempiin nollaanpakotus -menetelmiin. Yhteistoiminnallista keilanmuodostusta tutkitaan myös moni-tulo moni-lähtö -solukkoverkoissa, joissa tukiasemat sekä päätelaitteet ovat varustettuja monilla antenneilla. Tällaisessa verkossa lähetystehon minimointiongelma on ei-konveksi. Optimointiongelma jaetaan lähetys- ja vastaanottokeilanmuodostukseen, jotka toistetaan vuorotellen, kunnes algoritmi konvergoituu. Lähetyskeilanmuodostusongelma ratkaistaan peräkkäisillä konvekseilla approksimaatioilla. Vastaanottimen keilanmuodostus toteutetaan summaneliövirheen minimoinnin kautta. Keskitetyn algoritmin lisäksi tässä työssä kehitetään myös kaksi hajautettua algoritmia, jotka perustuvat primaalihajotelmaan. Hajautettua toteutusta helpotetaan pilottisignaloinnilla ja tukiasemien välisellä informaationvaihdolla. Numeeriset tulokset osoittavat, että moni-tulo moni-lähtö -tekniikoilla on merkittävästi parempi suorituskyky kuin moni-tulo yksi-lähtö -tekniikoilla. Lopuksi yhteistoiminnallista keilanmuodostusta tarkastellaan kognitiiviradioverkoissa, joissa primaari- ja sekundaarijärjestelmät jakavat saman taajuuskaistan. Lähetystehon optimointi suoritetaan sekundaariverkolle samalla minimoiden primaarikäyttäjille aiheuttamaa häiriötä. Väitöskirjassa kehitetään kaksi hajautettua algoritmia, joista toinen perustuu primaalihajotelmaan ja toinen kerrointen vaihtelevan suunnan menetelmään

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Kaleva, J. (Jarkko). „Decentralized multiantenna transceiver optimization for heterogeneous networks“. Doctoral thesis, Oulun yliopisto, 2018. http://urn.fi/urn:isbn:9789526219653.

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Abstract This thesis focuses on transceiver optimization for heterogeneous multi-user multiple-input multiple-output (MIMO) wireless communications systems. The aim is to design decentralized beamforming methods with low signaling overhead for improved spatial spectrum utilization. A wide range of transceiver optimization techniques are covered, with particular consideration of decentralized optimization, fast convergence, computational complexity and signaling limitations. The proposed methods are shown to provide improved rate of convergence, when compared to the conventional weighted minimum MSE (WMMSE) approach. This makes them suitable for time-correlated channel conditions, in which the ability to follow the changing channel conditions is essential. Coordinated beamforming under quality of service (QoS) constraints is considered for interfering broadcast channel. Decomposition based decentralized processing approaches are shown to enable the weighted sum rate maximization (WSRMax) in time-correlated channel conditions. Pilot-aided decentralized WSRMax beamformer estimation is studied for coordinated multi-point (CoMP) joint processing (JP). In stream specific estimation (SSE), all effective channels are individually estimated. The beamformers are then constructed from the locally estimated channels. On the other hand, with direct estimation (DE) of the beamformers, only the intended signal needs to be separately estimated and the covariance matrices are implicitly estimated from the received pilot training matrices. This makes the pilot design more robust to pilot contamination. These methods show that CoMP JP is feasible even in relatively fading channel conditions and with limited backhaul capacity by employing decentralized beamformer processing. In the final part of the thesis, a relay-assisted cellular system with decentralized processing is considered, in which users are served either directly by the base stations or via relays for WSRMax or sum power minimization subject to rate constraints. Zero-forcing and coordinated beamforming provide a trade-off between complexity, in-band signaling and spectrum utilization. Relays are shown to be beneficial in many scenarios when the in-band signaling is accounted for. This thesis shows that decentralized downlink MIMO transceiver design with a reasonable computational complexity is feasible in various system architectures even when signaling resources are limited and channel conditions are moderately fast fading
Tiivistelmä Tämä väitöskirja keskittyy lähetin- ja vastaanotinoptimointiin heterogeenisissä monikäyttäjä- ja moniantennijärjestelmissä. Tavoitteena on parantaa tilatason suorituskykyä tutkimalla hajautettuja keilanmuodostusmenetelmiä, joissa ohjaussignaloinnin tarve on alhainen. Erityisesti keskitytään hajautetun keilanmuodostuksen optimointiin, nopeaan konvergenssiin, laskennalliseen kompleksisuuteen sekä signaloinnin rajoitteisiin. Esitettyjen menetelmien osoitetaan parantavan konvergenssinopeutta ja vähentävän signaloinnin tarvetta, verrattaessa tunnettuun WMMSE-menetelmään. Nämä mahdollistavat lähetyksen aikajatkuvissa kanavissa, joissa kanavan muutosten seuraaminen on erityisen tärkeää. Näiden menetelmien osoitetaan mahdollistavan hajautetun ja priorisoidun tiedonsiirtonopeuden maksimoinnin monisolujärjestelmissä sekä aikajatkuvissa kanavissa käyttäjäkohtaisilla siirtonopeustakuilla. Pilottiavusteisten lähetys- ja vastaanotinkeilojen estimointia tutkitaan yhteislähetysjärjestelmissä. Yksittäisten lähetyskanavien estimoinnissa effektiiviset kanavat estimoidaan yksitellen, ja lähetys- ja vastaanotinkovarianssimatriisit muodostetaan summaamalla paikalliset kanavaestimaatit. Suoraestimoinnissa ainoastaan oman käyttäjän effektiivinen kanava estimoimaan erikseen. Tällöin kovarianssimatriisit saadaan suoraan vastaanotetuista pilottisignaaleista. Tämä tekee estimaateista vähemmän herkkiä häiriölle. Hajautetun yhteislähetyksen osoitetaan olevan mahdollista, jopa verrattain nopeasti muuttuvissa kanavissa sekä rajallisella verkkoyhteydellä lähettimien välillä. Viimeisessä osassa tutkitaan välittäjä-avusteisia järjestelmiä, joissa käyttäjiä palvellaan joko suoraan tukiasemasta tai välittäjä-aseman kautta. Optimointikriteereinä käytetään siirtonopeuden maksimointia sekä lähetystehon minimointia siirtonopeustakuilla. Nollaanpakottava sekä koordinoitu keilanmuodostus tarjoavat valinna laskennallisen kompleksisuuden, ohjaussignaloinnin sekä suorituskyvyn välillä. Välittäjä-avusteisen lähetyksen osoitetaan olevan hyödyllisiä useissa tilanteissa, kun radiorajanpinnan yli tapahtuvan signaloinnin tarve otetaan huomioon keilanmuodostuksessa. Tässä väitöskirjassa osoitetaan hajautetun keilanmuodostuksen olevan mahdollista verrattaen vähäisillä laskennallisilla resursseilla heterogeenisissä moniantennijärjestelmissä. Esitetyt menetelmät tarjoavat ratkaisuja järjestelmiin, joissa ohjaussignalointiresurssit ovat rajallisia ja radiokanava on jatkuvasti muuttuva

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PAI-HUNG, HUANG, und 黃百鴻. „A HL7/XML Information Exchange Management System“. Thesis, 2001. http://ndltd.ncl.edu.tw/handle/36164784412308986352.

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碩士
國立成功大學
工程科學系
89
Because of the rapid development of Internet and Information Technology, every developed country sets NII (National Information Infrastructure) into action greatly for building up their international competitiveness. Since 1987, the Department of Health in the Executive Yuan has started to promote “National Information Medicine Network”, it has become a policy and trend to be accepted by the healthcare authority to integrate the medical resources from every hospital through the proposed medicine network. The key point of sharing the medical resources is how to effectively integrate information from the heterogeneous environment inside the hospital, or between the different hospitals. Therefore, it is essential to have a unified medical information exchange standard. Medical Information Standard is divided into two major categories: one is Information Standard; the other one is Security Standard. Among the standards of relevant case history, HL7 (Health Level/Seven) is the most familiar object for the medical information industry, which has gradually become the hospital information exchange standard acknowledged by many countries. Through the information exchange standard’s definition in the application system of Medicine, HL7 simplifies the complexity within the application system; and then, to achieve the principle of sharing the medical resource. Recently, HL7 has been endeavored to develop the version 3.0. Describing the grammar and meaning of HL7 by means of XML (eXtensible Markup Language) and defining the tag in order to expand the ability of medical information exchange. The main point of this dissertation adopts HL7 as a unified documental format, E-Mailing exchanges information through XML as an information interchange medium. Consequently, using the technique of DOM (Document Object Model) flexibly stores the XML document into database; moreover, focusing on referral as a model provides the system designer to carry transferring out in the heterogeneous environments.

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Chang, Chieh, und 張傑. „Development of Information Exchange System with Load Balancing Capability“. Thesis, 2002. http://ndltd.ncl.edu.tw/handle/95775024589424665870.

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碩士
義守大學
工業管理學系
90
In the semiconductor supply chain, a company needs to deal with lots of information which comes with different formats. That includes message and document exchanges inside the company and the requests from the cooperative companies. It is a complicated and important task to reduce the cost of transaction between upstream and downstream companies. To deal with the information exchange and dispatching among different modules, e.g. Communication Holon (CH), Data Warehouse (DWH), Virtual Manufacturing (VM) system and Manufacturing Execution System (MES) on information system is developed. Base on RosettaNet and Internet protocols, the Use Case diagram, Sequence diagram, and Class diagram of this information system are developed by using object-oriented analysis and design. The messages in the system are written in the form of eXtensible Markup Language (XML). Since the messages of self-explanatory, the messages are encrypted. The information exchange systems need to take security and authentication into account. Moreover, due to potential heavy traffic loads and self-similar random arrivals, several coordinative information systems are built to dynamically balance and modulated the incoming traffic.

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Wang, Fu-Chung, und 王復中. „NHI MediCloud System – An Innovative Health Information Exchange Model“. Thesis, 2019. http://ndltd.ncl.edu.tw/handle/6977w9.

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碩士
國立臺灣大學
健康政策與管理研究所
107
Health information technology has been introduced into the health care industry and proved to be an effective solution to current challenges in rising cost and healthcare quality. Taiwan’s National Health Insurance Administration (NHIA) has developed a powerful health information exchange system to share and retrieve not only medication data but also diagnostic medical images to reduce unnecessary healthcare services. This nationwide system offers a great opportunity for health care providers to share medical information on the same platform to enhance medical services for all patients in relation to interoperability and customizability. Our aim is to evaluate the effectiveness of utilization change after the implementation. A case study by using the population based National Health Insurance (NHI) database with other information is conducted in this article. This study aims to demonstrate the innovative health information exchange model of MediCloud system, an inter-organization information system from implementation science perspective. The empirical findings will be of interest to most countries with a universal healthcare system that are considering implementing a similar health information system that can improve quality of healthcare while reducing costs. Improving patient safety and quality of care is crucial for Taiwan’s citizens, which is also a common goal for most national health systems. Health care providers and NHIA expect great benefits from Medicloud system-based healthcare solutions. The strong positive outcome of MediCloud system encouraged us to further use those new valuable health data plus original claim data to develop various innovative management system and services, and potentially to create a better health care system for people in Taiwan.

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WU, MIAO-YU, und 吳妙玉. „Constructing a standardized information exchange and Multiagent-based Statistical System“. Thesis, 2005. http://ndltd.ncl.edu.tw/handle/94821087954201627453.

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碩士
國立臺北大學
統計學系
93
Recent year, with the increasingly growth of the Internet and WWW, it is the trend of software development on the Web. Many information systems are migrated to the web. The systems are collaboratively constructed as a software environment and platforms based on the web. Many statistical systems and researches are deployed on the web, such as TKU’ s Net-Stat, NCKU’ s e-stat, the MMM system developed by Germany national research center, the system developed by Chooichiro Asano et. Al. in the Japan, the StatCrunch software developed by Dr west in the Department of Statistics of South Carolina University, and R project etc. These systems have many advantages than traditional statistical software. But they are some issues not to face it. For example, maintain is difficult, bottleneck and efficiency of system, scalability, without expertise analysis, without open and reusable software modules, and without standardized message exchange format etc. Obviously it is future trend of electronic environment and platform on various disciplines. All of disciplines should share and exchange their information over the network and accomplish common objective task with collaboration. It is alike in the Statistics. In order to achieve e-statistics, it is necessary a standard of information platform and message exchange over network for exchanging statistical information. The researches and system mentioned above obviously do not have concerning the issues. In the project, we will propose a standard of message exchange and and construct a standardized message exchange platform. And we use the technology of advanced intelligent agents to design and implement a variety of statistical computing groups based on the type of specialized field and integrate the service groups as a large scale of statistical computing environment.

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Ke, Kai-Ming, und 柯凱銘. „A Message Queue Based Information Exchange System for Social Networks“. Thesis, 2011. http://ndltd.ncl.edu.tw/handle/cvgx9z.

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碩士
國立臺北科技大學
資訊工程系研究所
99
The evolution of network communication can be divided into E-mail, IM, Microblog and Social Network in four stages. However, due to the popularity of smart phone, so user can post message in Social Network by smart phone., no longer limited to PC or Notebook. Because smart phone’s mobility is high, how transfer location information in Social Network is important. In addition, because the MQ in the Information Technology is to play the role of a middleware for distributed applications, and it provides Publish/Subscribe model, therefore, through the message queue construct exchange platform to reduce development difficult. In this thesis, a information exchange system for social networks is proposed and discussed. This system obtain location information by smart phone with built-in GPS system and use Message Queue bind the smart phone, thus provide a platform for exchange.

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AI, SUN, und 孫艾. „Research on Exchange Rate Forecasting Based on Information System Algorithm“. Thesis, 2017. http://ndltd.ncl.edu.tw/handle/65v4u5.

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博士
國立高雄應用科技大學
國際企業研究所
105
Abstract Along with the rapid development of financial globalization, our country faces complicated financial risks and foreign exchange risks. The subprime mortgage crisis, the sovereign debt crisis in areas with the euro, etc., spurred a global financial crisis and an economic recession and hence caused exchange rate prediction to evolve into an important economic issue, drawing wide attention. However, the foreign exchange market is a non-linear system with multiple variables, in which correlations between all factors are perplexing, exacerbating the difficulty of exchange rate prediction. As a complex non-linear system, exchange rate prediction methods have developed into a time series prediction from a parametric regression. However, in real applications, exchange rate fluctuations and varying trends are very complex, and the execution speed of the algorithm must surpass the variation speed of exchange rate at the same time as the exchange rate is precisely predicted. Although numerous studies pertaining to exchange rate prediction methods are currently available, the majority of the algorithms have been constrained by their complexity, and relevant research analysis has not been conducted on the applicability to data sets of the algorithms commonly used in exchange rate prediction. On account of this, three major method types are selected in this dissertation as the methodological basis of the research: the algorithm based on the empirical risk minimization principle, the algorithm based on the structural risk minimization principle, and the statistical filtering algorithm. Methods representative of algorithms theoretically applicable to exchange rate prediction are separated from the three major methods, namely, the Radial Basis Function Neural Network (RBFNN), the Least Squares-Support Vector Machine (LS-SVM), and the Kalman Filter (KF). The three methods mentioned above are selected in this dissertation to represent the three major methods, and explore their precision, efficiency, and applicability concerning exchange rate prediction. In addition, we contrast the three major types of algorithms according to test results, analyze the applicability of the different algorithms to data sets, and offer a novel train of thought and technological research on solving the problem of exchange rate prediction. The main sections of the dissertation are as follows: 1. The widely-used type of neural network, RBFNN, is introduced into the field of exchange rate prediction based upon the empirical risk minimization principle. This method both inherits the empirical risk minimization principle and introduces the kernel functions of RBF, has a higher prediction accuracy, simple structure, fast training speed, and different from the ordinary feedforward neural networks, with the best approximation performance and overall optimization. 2. This dissertation takes LS-SVM to represent the methods based on the structural risk minimization principle used for exchange rate prediction, since the methods based on the empirical risk minimization principle have lower prediction accuracy in circumstances of insufficient data. Addressing the issue of slower computation and convergence speeds of the traditional SVM algorithm, this method solved the problem of quadratic programming with LS on the premise of ensured minimal structural risks. Therefore, adopting this method may ensure the accuracy of the algorithm in cases of small sample size, as well as completing the prediction faster. 3. Addressing the deviation existing in both the prediction results from each type of method and in the exchange rate data, this dissertation proposes an exchange rate method based on the Kalman Filter. This method is representative of statistical filtering algorithms and may internally reduce noise in the two models to acquire more accurate prediction values. Therefore, adopting this method may effectively utilize the accuracy of the two models and allow the acquisition of more precise prediction values by statistical means.

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Lin, Yi-Ting, und 林伊亭. „Building the RFID Information Exchange Platform System for Healthcare Industry“. Thesis, 2008. http://ndltd.ncl.edu.tw/handle/38642869119455446655.

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碩士
臺北醫學大學
醫學資訊研究所
96
The information level of the medical organization is different now. Information is unable to transmit immediately. The relevant supplementary measures fail to implement concretely. concretely.Health care system lack ‘the inducstry'' concept to develop, and effect service quality and also hinders health care develop. RFID information flow of each medical organization, it is still unable to circulate effectively among the organizations, can''t give wave the greatest benefit of RFID. Healthcare Industry, in order to reach the information which step the organization to interflow, implement industry concept, have demands to Information Exchange Platform System,so building the RFID Information Exchange Platform System for Healthcare Industry. The RFID Information Exchange Platform System act between the role that meets. It’s basic function is dispatch ID code, translation ID code, register and resume match. Not only the user can search resume by RFID Information Exchange Platform System, but also the providers can register service data to supply with other medical hospital. Reach the circulation of medical information. In verification theory, 79.90% respondents agree the benefit. Beside,the RFID Information Exchange Platform System can reduce the time of medical treatment. Verify RFID Information Exchange Platform System for Healthcare Industry is valuable and benefit.

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Hong, Shang-Pei, und 洪尚棓. „An Exchange System for Medical Information Based on HL7/CDA“. Thesis, 2004. http://ndltd.ncl.edu.tw/handle/76857219796278366841.

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碩士
國立臺灣大學
電機工程學研究所
92
Electronic – information, this conception is in vogue recently, and many hospitals adhere this trend to switch their material to digital information. This raises their efficiency substantially. Because frameworks of information system in every hospital are different, exchange of data between hospitals, clinical documents is very difficult. This is a waste of patients time and precious medical resources indirectly. Thus, many countries are striving for developing electronic medical record standard. In light of the need of medical record exchange, we used the HL7/CDA standard to develop our system. CDA is a standard adopted by HL7 that specifies the structure and semantics of clinical documents for the purpose of exchange. The documents are coded in XML and can include multimedia data (like image, sound…). Information system in hospital is very huge, so it is difficult to change the entire old system for the purpose of exchanging medical record. By cooperating with the E.C.K.(En Chu Kong) Hospital, we design an exchange system parallel to the hospital information system and is responsible for the exchange. By using the Web Service, the proposed system can access with the mother system and obtain up to date circulation of medical data. Besides text, the exchange system provides the medical image so that doctors can obtain more information on patients'' condition. Clinical test is conducted for 30 patients and find it is workable.

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46

Apathy, Nathan Calvert. „Health Information Exchange Use in Primary Care“. Diss., 2020. http://hdl.handle.net/1805/23669.

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Indiana University-Purdue University Indianapolis (IUPUI)
The United States has invested over $40 billion in digitizing the health care system, yet the anticipated gains in improved care coordination, quality, and cost savings remain largely unrealized. This is due in part to limited interoperability and low rates of health information exchange (HIE) use, which can support care coordination and improve provider decision-making. Primary care providers are central to the US health care delivery system and frequently function as care coordinators, yet capability and HIE use gaps among these providers limit the potential of these digital systems to achieve their intended goals. I study HIE use in the context of primary care to examine 1) factors associated with provider HIE use, 2) the extent and nature of team-based HIE use, and 3) differences in HIE system use patterns across discrete groups of system users. First, I use a national sample of primary care providers to analyze market and practice factors related to HIE use for patient referrals. Overall, I find that only 43% of primary care provider referrals used HIE. Furthermore, I find substantial variation in HIE use rates across electronic health record (EHR) vendors. Second, I use HIE system log data to understand the breadth and depth of HIE use among teams, a care model underpinning primary care delivery reform efforts. I find that although use of HIE systems remains low, in primary care settings it overwhelmingly takes place in a manner consistent with team-based care workflows. Furthermore, team-based use does not differ in breadth from single provider HIE use, but illustrates less depth before and after visits. Third, I apply cluster analysis to 16 HIE use measures representing 7 use attributes, and identify 5 discrete user groups. I then compare two of these user groups and find user-level variation in volume and efficiency of use, both of which have implications for HIE system design and usability improvements. Ultimately, these findings help to inform how HIE use can be increased and improved in primary care, moving the US health care system closer to realizing the coordination, quality, and cost savings made possible by a digitized delivery system.

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Chun-Hsiung, Cheng, und 鄭俊雄. „The Study of XML-Based Integrated Military Information Exchange System Architecture“. Thesis, 2001. http://ndltd.ncl.edu.tw/handle/59606972452755030372.

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碩士
國防管理學院
國防資訊研究所
90
To cooperate with the ongoing project of electronic government promoted by Administration Yuan, MND are aim it’s goal at information innovation. Defense business electrified is become an important task to achieve. That is, not only to collect, process, store and auto transmit the content of the document but also can compare, operate, reprocess and present the information resided in the rear end database will complete by computer. However, there are a lot of discrepancies between systems, such as individual operation system, information application system, database system or communication system that result in the difficulty to fulfill E Defense. XML（eXtensible Markup Language）has the features of information self-descriptive, function extensible, mulit-platform capability , hetogeneruous databases integration and open for use. They make XML to play a critical role at providing information exchange between hetogeneruous databases system while implementing business to business（B2B）application. The purpose of this article is mean to research and reveal the information process and exchange between systems such as human resources, financial and inventory that are related to information exchange operation. And to create architecture via Internet. It also hopes to provide a different aspect of understanding to MND in XML utilization.

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Tung-YuKuo und 郭東諭. „Parallel Ant Colony System with Information Exchange Based on Pheromone Matrix Integration“. Thesis, 2012. http://ndltd.ncl.edu.tw/handle/35623176128845650718.

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碩士
國立成功大學
資訊工程學系碩博士班
100
An important issue on improving the performance of parallel ant colony optimization is to explore useful information exchange strategies for sharing information among ant colonies to improve search behavior. This thesis applies the concept of information exchange to enhance the performance of the parallel ant colony system algorithm. The information exchange is based on the pheromone matrix, and this thesis proposes six information exchange strategies for pheromone matrixes integration. Further, these strategies are also combined with the information exchange based on the best solution (PACS and MACS [7]). The experimental studies based on three well-known traveling salesman data sets demonstrate the six strategies have the effectiveness on search. The studies also indicate that combining with the best solution (PACS and MACS) improves the performance of PACS and MACS, particularly in large problem that accomplishes a significant improvement.

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49

ZHOU, JING-JIE, und 周靖傑. „Design and Implementation of E-Commerce Information Exchange System Based on WebSocket Technology“. Thesis, 2019. http://ndltd.ncl.edu.tw/handle/m4bsw9.

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50

Gates, Kayla. „Evaluation of a system for electronic exchange of laboratory information : a pre-implementation study /“. 2004.

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