Дисертації з теми "Distributed ontology"
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Mutharaju, Raghava. "Distributed Rule-Based Ontology Reasoning." Wright State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright1472534764.
Повний текст джерелаWeng, Zumao. "Distributed knowledge based image contents retrieval and exploration." Thesis, University of Ulster, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370088.
Повний текст джерелаMena, Eduardo Illarramendi Arantza. "Ontology-based query processing for global information systems /." Boston [u.a.] : Kluwer Acad. Publ, 2001. http://www.loc.gov/catdir/enhancements/fy0813/2001029621-d.html.
Повний текст джерелаTenschert, Axel [Verfasser], and Michael [Akademischer Betreuer] Resch. "Ontology matching in a distributed environment / Axel Tenschert ; Betreuer: Michael Resch." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2016. http://d-nb.info/1130148556/34.
Повний текст джерелаGu, Xuan. "Selective Data Replication for Distributed Geographical Data Sets." Thesis, University of Canterbury. Computer Science and Software Engineering, 2008. http://hdl.handle.net/10092/2545.
Повний текст джерелаHalilaj, Lavdim [Verfasser]. "An Approach for Collaborative Ontology Development in Distributed and Heterogeneous Environments / Lavdim Halilaj." Bonn : Universitäts- und Landesbibliothek Bonn, 2019. http://d-nb.info/117773480X/34.
Повний текст джерелаKim, Taekyu. "Ontology/Data Engineering Based Distributed Simulation Over Service Oriented Architecture For Network Behavior Analysis." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/193678.
Повний текст джерелаWariyapola, Pubudu C. (Pubudu Chaminda) 1972. "Towards an ontology and metadata structure for a distributed information system for coastal zone management." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80236.
Повний текст джерелаMilliner, Stephen William. "Dynamic resolution of conceptual heterogenity in large scale distributed information systems." Thesis, Queensland University of Technology, 2001.
Знайти повний текст джерелаDucrou, Amanda Joanne. "Complete interoperability in healthcare technical, semantic and process interoperability through ontology mapping and distributed enterprise integration techniques /." Access electronically, 2009. http://ro.uow.edu.au/theses/3048.
Повний текст джерелаAndersson, Richard. "Evaluation of the Security of Components in Distributed Information Systems." Thesis, Linköping University, Department of Electrical Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2091.
Повний текст джерелаThis thesis suggests a security evaluation framework for distributed information systems, responsible for generating a system modelling technique and an evaluation method. The framework is flexible and divides the problem space into smaller, more accomplishable subtasks with the means to focus on specific problems, aspects or system scopes. The information system is modelled by dividing it into increasingly smaller parts, evaluate the separate parts and then build up the system “bottom up” by combining the components. Evaluated components are stored as reusable instances in a component library. The evaluation method is focusing on technological components and is based on the Security Functional Requirements (SFR) of the Common Criteria. The method consists of the following steps: (1) define several security values with different aspects, to get variable evaluations (2) change and establish the set of SFR to fit the thesis, (3) interpret evaluated security functions, and possibly translate them to CIA or PDR, (4) map characteristics from system components to SFR and (5) combine evaluated components into an evaluated subsystem. An ontology is used to, in a versatile and dynamic way, structure the taxonomy and relations of the system components, the security functions, the security values and the risk handling. It is also a step towards defining a common terminology for IT security.
Sarkar, Arkopaul. "Semantic Agent Based Process Planning for Distributed Cloud Manufacturing." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1578585210407386.
Повний текст джерелаTessier, Sean Michael. "Ontology-based approach to enable feature interoperability between CAD systems." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41118.
Повний текст джерелаIshak, Karim. "Architecture distribuée interopérable pour la gestion des projets multi-sites : application à la planification des activités de production." Thesis, Toulouse, INPT, 2010. http://www.theses.fr/2010INPT0075/document.
Повний текст джерелаToday, the production is often multi-site because companies focus on their core competencies. In this context, projects’ management is a difficult task because it must take into account the distribution of the decision and the heterogeneity which can exist between the various production applications of the partners. The Multi-agents systems, in particular the SCEP model (Supervisor, Customer, Environment, Producer), offer a satisfactory solution for the decision distribution problem, by establishing a cooperation between agents responsible of the management of the customer projects and agents representing the remote production sites. Nevertheless, this model presents limits because of its weak ability to communicate and to cooperate with heterogeneous models and management systems, as well as in its difficulty to localize new partners. In this dissertation, we propose a distributed and interoperable architecture, SCEP-SOA, which integrates concepts of the SCEP model and SOA (Service Oriented Architecture) which offers mechanisms for putting in relation various partners and allows communication between heterogeneous systems and applications. To insure the good understanding of the information exchanged between the partners, the SCEP-SOA architecture implements a strategy of semantic interoperability based on the integration of ontologies. This strategy is based on the use of a shared global ontology for information exchange, and on mechanisms of mappings between the global ontology and the partners’ local ontologies. This architecture is illustrated by a study case in which we focus on the interoperability between applications dedicated to the planning of manufacturing multi-sites projects
Havlena, Jan. "Distribuovaný informační systém založený na sémantických technologiích." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2010. http://www.nusl.cz/ntk/nusl-237211.
Повний текст джерелаCaires, Bruno José de Sales Caires. "Transparent access to relational, autonomous and distributed databases using semantic web and service oriented technologies." Master's thesis, Universidade da Madeira, 2007. http://hdl.handle.net/10400.13/128.
Повний текст джерелаSupervisor: António Jorge Silva Cardoso
Venkatsubramanyan, Shailaja. "Discovering distributed and heterogeneous resources on the Internet: A theoretical foundation for an ontology-driven intelligent agent model. Its design, implementation and validation." Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/284913.
Повний текст джерелаSaad, Sawsan. "Conception et Optimisation Distribuée d’un Système d’Information des Services d’Aide à la Mobilité Urbaine Basé sur une Ontologie Flexible dans le Domaine de Transport." Thesis, Ecole centrale de Lille, 2010. http://www.theses.fr/2010ECLI0017/document.
Повний текст джерелаNowadays, information related on displacement and mobility in a transport network represents certainly a significant potential. So, this work aims to modeling, to optimize and to implement an Information System of Services to Aid the Urban Mobility (ISSAUM).The ISSAUM has firstly to decompose each set of simultaneous requests into a set of sub-requests called tasks. Each task corresponds to a service which can be proposed different by several information providers with different. An information provider which aims to propose some services through our ISSAUM has to register its ontology. Indeed, ISSAUM is related to an Extended and distributed Transport Multimodal Network (ETMN) which contains several heterogeneous data sources. The dynamic and distributed aspects of the problem incite us to adopt a multi-agent approach to ensure a continual evolution and a pragmatic flexibility of the system. So, we proposed to automate the modeling of services by using ontology idea. Our ISSAUM takes into account possible disturbance through the ETMN. In order to satisfy user requests, we developed a negotiation protocol between our system agents. The proposed ontology mapping negotiation model based on the knowledge management system for supporting the semantic heterogeneity and it organized as follow: Negotiation Layer (NL), the Semantic Layer (SEL), and the Knowledge Management Systems Layer(KMSL).We detailed also the reassignment process by using Dynamic Reassigned Tasks (DRT) algorithm supporting by ontology mapping approach. Finally, the experimental results presented in this thesis, justify the using of the ontology solution in our system and its role in the negotiation process
Venturini, Yeda Regina. "MOS - Modelo Ontológico de Segurança para negociação de política de controle de acesso em multidomínios." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-19092006-165220/.
Повний текст джерелаThe evolution in the network technology and the growing number of portable and fixed devices belonging to a user, which shares resources, introduces new concepts and challenges in the network and information security area. This new reality has motivated the development of a project for personal security domain formation and security association between them, creating a multi-domain. The multi-domain formation introduces new challenges concerning the access control security policy, since multi-domains are composed by independent administrative domains that share resources for collaborative work. This work presents the main concept concerning the personal security domains and multi-domains, and proposes a security model to allow the dynamic security policy negotiation and composition for access control in multi-domain. The proposed model is called MOS, which is an ontological security model. The MOS is a role-based access control model, which elements are defined by an ontology. The ontology defines a semantic language, common and standardized, allowing the policy interpretation by different domains. The policy negotiation is made possible by the definition of the policy importation and exportation in each domain. These policies mean the partial contributions of each domain for the multi-domain policy formation. The use of ontology allows the dynamic multi-domain policy composition, as well as the verification and resolution of interest conflicts. These conflicts mean incompatibilities between the importation and exportation policy. The MOS was validated through the viability analysis for personal multi-domain application. The analysis was made through the definition of a factual model and the simulation of access control policy negotiation and composition. The simulation was taken place through the definition of a collaborative research projects multi-domain. The results demonstrate the MOS is feasible for implementation in automatic procedures for multi-domain access control policy creation.
Silva, Marcel Santos [UNESP]. "Sistemas de informações geográficas: elementos para o desenvolvimento de bibliotecas digitais geográficas distribuídas." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/93711.
Повний текст джерелаUniversidade Estadual Paulista (UNESP)
O desenvolvimento de tecnologias de informação e comunicação aplicadas às informações geográficas cresce de forma considerável e torna mais visível o aumento de Sistemas de Informações Geográficas, principalmente em ambientes governamentais, que buscam disponibilizar a informação geográfica a um número de pessoas cada vez maior. O objetivo deste trabalho é apresentar uma arquitetura com elementos para a construção de uma Biblioteca Digital Geográfica Distribuída, utilizando os padrões e os conceitos da Ciência da Informação juntamente com o Geoprocessamento. Serão apresentados os conceitos de bibliotecas digitais, os padrões de metadados para informações geográficas, além de geo-ontologias que contribuem para melhor organização e recuperação da informação geográfica. Utilizou-se os SIGs e a teoria da Ciência da Informação, focadas em especial para o desenvolvimento de Biblioteca Digital Geográfica Distribuída. A proposta para construção de uma Biblioteca Digital Geográfica Distribuída baseia-se no princípio de cooperação entre sistemas e considera o acesso livre as informações geográficas, a interoperabilidade possibilitada pela padronização dos metadados e das geo-ontologias. A arquitetura proposta para o desenvolvimento de Bibliotecas Digitais Geográficas Distribuídas atende os requisitos de representação da informação, as formas de comunicação e o protocolo de coleta de metadados e objetos digitais, possibilitando assim, o compartilhamento dos acervos informacionais geográficos distribuídos em diferentes Bibliotecas Digitais Geográficas. Apontam-se os elos entre o Geoprocessamento e a Ciência da Informação em relação à estruturação de ambientes de informações geográficas, que possam ser acessadas via rede de computadores.
The development of technologies of information and communication applied to the Geographical information grow in a considerable way and become more visible the increase of Geographic Information Systems, mainly in governments environments, that worry in supplying the geographic information for more and more people. The target of this work is to present an architecture with elements for the construction of a distributed geographical digital library, using patterns and concepts of the Information Science together with geoprocessing. The concepts of digital libraries and the patterns of metadata for geographical information will be presented, besides the geo-ontologies that contribute to better organization and recovery of geographical information. It was used the Geographic Information Systems and the theory of Information Science, focused mainly to the development of distributed geographical digital library.The proposal for construction of the distributed geographical digital library is on the principle of cooperation among systems and it considers the free access to geographical information, the interoperability facilitated by the standardization of the metadatas and geo-ontologies. The architecture proposed for the development of distributed geographical digital libraries assists the requirements of representations of the information, ways of communications and collection protocols for metadatas and digital objects, facilitating thus, the share of collections of geographical informations distributed at several Geographical Digital Libraries. The links between the geoprocessing and Information Science is pointed out with regard to the structuring of geographical information environment that can be accessed through computers network.
Haase, Peter. "Semantic technologies for distributed information systems." Karlsruhe : Univ.-Verl. Karlsruhe, 2006. http://www.uvka.de/univerlag/volltexte/2007/195/.
Повний текст джерелаARAÚJO, Tiago Brasileiro. "Uma abordagem em paralelo para matching de grandes ontologias com balanceamento de carga." Universidade Federal de Campina Grande, 2016. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1316.
Повний текст джерелаMade available in DSpace on 2018-08-01T19:28:54Z (GMT). No. of bitstreams: 1 TIAGO BRASILEIRO ARAÚJO - DISSERTAÇÃO PPGCC 2016..pdf: 18742851 bytes, checksum: 92b3eefe5e78ab27784255e850871df9 (MD5) Previous issue date: 2016-03-07
Atualmente, o uso de grandes ontologias em diversos domínios do conhecimento está aumentando. Uma vez que estas ontologias podem apresentar sobreposição de conteúdo, a identificação de correspondências entre seus conceitos se torna necessária. Esse processo é chamado de Matching de Ontologias (MO). Um dos maiores desafios do matching de grandes ontologias é o elevado tempo de execução e o excessivo consumo de recursos de computacionais. Assim, para melhorar a eficiência, técnicas de particionamento de ontologias e paralelismo podem ser empregadas no processo de MO. Este trabalho apresenta uma abordagem para o Matching de Ontologias baseado em Particionamento e Paralelismo (MOPP) que particiona as ontologias de entrada em subontologias e executa as comparações entre conceitos em paralelo, usando o framework MapReduce como solução programável. Embora as técnicas de paralelização possam melhorar a eficiência do processo de MO, essas técnicas apresentam problemas referentes ao desbalanceamento de carga. Por essa razão, o presente trabalho propõe ainda duas técnicas para balanceamento de carga (básica e refinada) para serem aplicadas junto à abordagem MOPP, a fim de orientar a distribuição uniforme das comparações (carga de trabalho) entre os nós de uma infraestrutura computacional. O desempenho da abordagem proposta é avaliado em diferentes cenários (diferentes tamanhos de ontologias e graus de desbalanceamento de carga) utilizando uma infraestrutura computacional e ontologias reais e sintéticas. Os resultados experimentais indicam que a abordagem MOPP é escalável e capaz de reduzir o tempo de execução do processo de MO. No que diz respeito às técnicas de balanceamento de carga, os resultados obtidos mostram que a abordagem MOPP é robusta, mesmo em cenários com elevado grau de desbalanceamento de carga, com a utilização da técnica refinada de balanceamento de carga.
Currently, the use of large ontologies in various áreas of knowledge is increasing. Since, these ontologies can present contents overlap, the identification of correspondences among their concepts is necessary. This process is called Ontologies Matching (OM). One of the major challenges of the large ontologies matching is the high execution time and the computational resources consumption. Therefore, to get the efficiency better, partition and parallel techniques can be employed in the MO process. This work presents a Partition-Parallelbased Ontology Matching (PPOM) approach which partitions the input ontologies in subontologies and executes the comparisons between concepts in parallel, using the framework MapReduce as a programmable solution. Although the parallel techniques can get the MO efficiency process better, these techniques present problems concerning to the load imbalancing. For that reason, our work has proposed two techniques to the load balancing - the basic and the fine-grained one - which are supposed to be applied together with the PPOM approach, in order to orientate the uniform distribution of the comparisons (workload) between the nodes of a computing infrastructure. The performance of the proposed approach is assessed in different settings (different sizes of ontologies and degrees of load imbalancing) using a computing infrastructure and real and synthetic ontologies. The experimental results have indicated that the PPOM approach is scalable and able to reduce the OM process execution time. Referring to the load balancing techniques, the obtained results have shown that the PPOM approach is robust, even in settings with a high load imbalancing, with the fine-grained load balancing technique.
Silva, Marcel Santos. "Sistemas de informações geográficas : elementos para o desenvolvimento de bibliotecas digitais geográficas distribuídas /." Marília : [s.n.], 2006. http://hdl.handle.net/11449/93711.
Повний текст джерелаBanca: Plácida Leopoldina Ventura Amorim da Costa Santos
Banca: Sérgio Antonio Rohm
Resumo: O desenvolvimento de tecnologias de informação e comunicação aplicadas às informações geográficas cresce de forma considerável e torna mais visível o aumento de Sistemas de Informações Geográficas, principalmente em ambientes governamentais, que buscam disponibilizar a informação geográfica a um número de pessoas cada vez maior. O objetivo deste trabalho é apresentar uma arquitetura com elementos para a construção de uma Biblioteca Digital Geográfica Distribuída, utilizando os padrões e os conceitos da Ciência da Informação juntamente com o Geoprocessamento. Serão apresentados os conceitos de bibliotecas digitais, os padrões de metadados para informações geográficas, além de geo-ontologias que contribuem para melhor organização e recuperação da informação geográfica. Utilizou-se os SIGs e a teoria da Ciência da Informação, focadas em especial para o desenvolvimento de Biblioteca Digital Geográfica Distribuída. A proposta para construção de uma Biblioteca Digital Geográfica Distribuída baseia-se no princípio de cooperação entre sistemas e considera o acesso livre as informações geográficas, a interoperabilidade possibilitada pela padronização dos metadados e das geo-ontologias. A arquitetura proposta para o desenvolvimento de Bibliotecas Digitais Geográficas Distribuídas atende os requisitos de representação da informação, as formas de comunicação e o protocolo de coleta de metadados e objetos digitais, possibilitando assim, o compartilhamento dos acervos informacionais geográficos distribuídos em diferentes Bibliotecas Digitais Geográficas. Apontam-se os elos entre o Geoprocessamento e a Ciência da Informação em relação à estruturação de ambientes de informações geográficas, que possam ser acessadas via rede de computadores.
Abstract: The development of technologies of information and communication applied to the Geographical information grow in a considerable way and become more visible the increase of Geographic Information Systems, mainly in governments environments, that worry in supplying the geographic information for more and more people. The target of this work is to present an architecture with elements for the construction of a distributed geographical digital library, using patterns and concepts of the Information Science together with geoprocessing. The concepts of digital libraries and the patterns of metadata for geographical information will be presented, besides the geo-ontologies that contribute to better organization and recovery of geographical information. It was used the Geographic Information Systems and the theory of Information Science, focused mainly to the development of distributed geographical digital library.The proposal for construction of the distributed geographical digital library is on the principle of cooperation among systems and it considers the free access to geographical information, the interoperability facilitated by the standardization of the metadatas and geo-ontologies. The architecture proposed for the development of distributed geographical digital libraries assists the requirements of representations of the information, ways of communications and collection protocols for metadatas and digital objects, facilitating thus, the share of collections of geographical informations distributed at several Geographical Digital Libraries. The links between the geoprocessing and Information Science is pointed out with regard to the structuring of geographical information environment that can be accessed through computers network.
Mestre
Amjad, Fahd. "Approche ontologie pour l'intégration des entreprises distribuées." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0334/document.
Повний текст джерелаIn this thesis, we have provided a complete review of the semantic web technologies and their corresponding utility in the current environment for small to medium sized enterprise (MSE). The traditional approaches to enterprise integration favour large enterprise entities and force contractual limitations on smaller partners, but at the same time the pressure to guard the individual enterprise competence is ever increasing, the distributed enterprise (MSE) in such an environment have limited number of choices, which forces them to make strategic decisions and enter into a long term agreements with their partners and this limits their flexibility to the market changes. We, in this thesis, propose a semantic web based ontology approach for integrating the information as well as physical resource of the distributed enterprise. This web based approach acts as a decision support for better resources utility as well as distributed information integration. The work related to web ontology?s for information integration is not new, but the approach proposed in this thesis for distributed enterprise is an added value. Similarly, we have also proposed semantic web ontology as a configuration system to manage the distributed resources of the virtual enterprise, for this we have modelled OWL-DL ontology on the semantic of the industrial integration standard ISA-95, and subsequently used this ontology artefact as a configuration artefact to manage the distributed virtual enterprise material and equipment resources this is the main proposition of the thesis of utilizing semantic web ontology as resource configuration decision support
Ленько, Василь Степанович. "Методи та засоби управління персональними знаннями в інтелектуальних системах". Diss., Національний університет "Львівська політехніка", 2021. https://ena.lpnu.ua/handle/ntb/56148.
Повний текст джерелаSaad, Sawsan. "Conception et Optimisation Distribuée d'un Système d'Information des Services d'Aide à la Mobilité Urbaine Basé sur une Ontologie Flexible dans le Domaine de Transport." Phd thesis, Ecole Centrale de Lille, 2010. http://tel.archives-ouvertes.fr/tel-00586086.
Повний текст джерелаGandon, Fabien. "INTELLIGENCE ARTIFICIELLE DISTRIBUÉE ET GESTION DES CONNAISSANCES : ONTOLOGIES ET SYSTÈMES MULTI-AGENTS POUR UN WEB SÉMANTIQUE ORGANISATIONNEL." Phd thesis, Université de Nice Sophia-Antipolis, 2002. http://tel.archives-ouvertes.fr/tel-00378201.
Повний текст джерелаsur une ontologie. Dans le projet CoMMA, je me suis focalisé sur deux scénarios d'application:
l'assistance aux activités de veille technologique et l'aide à l'insertion d'un nouvel employé dans une organisation. Trois aspects ont été développés dans ce travail :
- la conception d'une architecture multi-agents assistant les deux scénarios, et l'approche organisationnelle descendante adoptée pour identifier les sociétés, les rôles et les interactions des agents ;
- la construction de l'ontologie O'CoMMA et la structuration de la mémoire organisationnelle en exploitant les technologies du Web sémantique ;
- la conception et l'implantation (a) des sous-sociétés d'agents chargées de la maintenance des annotations et de l'ontologie et (b) des protocoles supportant ces deux groupes d'agents, en particulier des techniques pour la distribution des annotations et des requêtes entre les agents.
Thomas, Cerqueus. "Contributions au problème d'hétérogénéité sémantique dans les systèmes pair-à-pair : application à la recherche d'information." Phd thesis, Université de Nantes, 2012. http://tel.archives-ouvertes.fr/tel-00763914.
Повний текст джерелаLe, Pham Anh. "De l'optimisation à la décomposition de l'ontologique dans la logique de description." Phd thesis, Université de Nice Sophia-Antipolis, 2008. http://tel.archives-ouvertes.fr/tel-00507431.
Повний текст джерелаBesançon, Léo. "Interopérabilité des Systèmes Blockchains." Thesis, Lyon, 2021. https://tel.archives-ouvertes.fr/tel-03789639.
Повний текст джерелаBlockchains are a disruptive technology. They enable an ecosystem for decentralized applications with interesting properties: transaction transparency, application auditability or censorship resistance. It has applications in various fields, such as finance, healthcare or video games. It has evolved a lot since its creation in 2008, and presents numerous perspectives. However, the field faces many challenges, in particular a lack of interoperability at several levels: between projects on a same Blockchain, between different Blockchains, or between Blockchains and other systems. One important aspect of Blockchain systems interoperability is semantic interoperability. It relies on formal definitions of the related concepts. Another challenge is the design of decentralized Blockchain applications. These applications integrate Blockchain technology, but also other services that satisfy the constraints of the application that Blockchain is not suitable for. However, it is complex to choose the most suited Blockchain service for a given application. With this PhD work, we propose a framework that can improve interoperability for decentralized Blockchain applications. We achieve this with the design of a methodology and a Blockchain ontology that help formalize the concepts related to an application. This framework is validated in the context of Blockchain video game development. It is a complex use case, as it needs to share storage intensive data and satisfy the latency constraints
Zgaya, Hayfa. "Conception et optimisation distribuée d'un système d'information d'aide à la mobilité urbaine : Une approche multi-agent pour la recherche et la composition des services liés au transport." Phd thesis, Ecole Centrale de Lille, 2007. http://tel.archives-ouvertes.fr/tel-00160802.
Повний текст джерелаCes travaux de recherche visent à mettre en œuvre un Système d'Information de Transport Multimodal (SITM) pour optimiser la gestion de flux des requêtes utilisateurs qui peuvent être nombreuses et simultanées. Dans ce cas, le SITM doit pouvoir procéder par des processus de décomposition des requêtes simultanées en un ensemble de tâches indépendantes. Chaque tâche correspond à un service qui peut être proposé par plusieurs fournisseurs d'information, en concurrence, avec différents couts, formats et temps de réponse. Un fournisseur d'information voulant proposer ses services via le SITM, doit d'abord y enregistrer son système d'information, en assumant la responsabilité des aspects juridiques et qualitatifs de ses données. Le SITM est donc lié à un Réseau informatique Etendu et distribué de Transport Multimodal (RETM) qui comporte plusieurs sources d'information hétérogènes des différents services proposés aux utilisateurs de transport.
L'aspect dynamique, distribué et ouvert du problème, nous a conduits à adopter une modélisation multi-agent pour assurer au système une évolution continue et une flexibilité pragmatique. Le système multi-agent proposé s'appuie sur les métaheuristiques pour la recherche et la composition des services; la recherche des services se base sur le paradigme Agent Mobile (AM) utilisant un algorithme d'optimisation dynamique de construction des Plans De Routes (PDR). Cette première étape d'optimisation prépare les parcours des AMs en prenant en considération l'état du RETM. La composition des services utilise les algorithmes évolutionnistes pour optimiser les réponses en termes de coût et de temps, sachant qu'une réponse à une requête utilisateur ne doit pas dépasser un temps maximum autorisé et qu'un utilisateur cherche toujours à avoir le meilleur rapport qualité prix pour les services qu'il demande.
Enfin, le SITM prend en considération les éventuelles perturbations sur le RETM (pannes, goulets d'étranglements, etc.) pour satisfaire les requêtes utilisateurs dans tous les cas de figure. Dans ce contexte, nous avons créé un protocole de négociation entre les agents mobiles et les agents responsables des choix des fournisseurs d'information pour les services demandés, ces agents sont appelés agents Ordonnanceurs. Le protocole proposé dépasse les limites d'une communication agent traditionnelle, ce qui nous a incités à associer au système une ontologie flexible qui permet d'automatiser les différents types d'échanges entre les agents grâce à un vocabulaire approprié.
Les résultats expérimentaux présentés dans cette thèse justifient l'utilisation du paradigme agent mobile dans notre système qui remplace parfaitement bien les paradigmes classiques telle que l'architecture client/serveur. Les simulations présentées montrent différents scénarios de gestion d'un nombre des requêtes simultanées plus ou moins important. En effet, quelque soit le nombre de requêtes utilisateurs formulées pendant un court laps de temps , le système se charge de leur décomposition, de l'identification des services demandés et des fournisseurs d'information susceptibles d'y répondre.
Tzou, Meng-Shiun, and 鄒孟訓. "Ontology Alignment System with Adaptable and Distributed Matching Strategy." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/prg3fv.
Повний текст джерела國立中央大學
資訊工程研究所
94
When an agent does not understand a similar, but different ontology instance, an ontology alignment system (OAS) can align different ontologies so that the agent can understand it. The benefits of this OAS are: 1) adjustable (to add or to delete) matching strategy and 2) distributed processing that follows XML-RPC architecture and uses XML message format and HTTP POST transmission protocol, which makes OAS communication across platform and language. Different OAS can thus share different ontologies.
Wang, Yi-Bin, and 王怡斌. "Development of Mechanism for Ontology-Based Distributed Case-Based Reasoning." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/71605094936202387746.
Повний текст джерела國立成功大學
製造工程研究所碩博士班
94
Due to the advent of knowledge-based economy and distributed enterprises, the enterprises get the knowledge not only from themselves but also others. In order to support knowledge integration in the distributed enterprises, the distributed case-based reasoning systems(DCBRs) plays an important role in the knowledge and experience sharing. Up to the present, researches on DCBRs focus merely on retrieving cases in the same system and using a pre-defined standard of domain knowledge for knowledge sharing, but the needs of sharing knowledge among heterogeneous CBR systems have not been considered. In addition, traditional CBR systems only provide similar cases without performing case adaptation. The objective of the research is to develop a mechanism for ontology-based distributed case-based reasoning using characteristic of ontology and a proposed multistage algorithm. This thesis proposes a distributed CBR system architecture and uses ontology to solve the semantic mismatch problems between heterogeneous cases as well as the problems of case adaptation without involvement of domain experts. The results of this study will enable heterogeneous knowledge retrieval in distributed enterprises and thus facilitate knowledge sharing.
Wen, Chiun-Cheng, and 溫俊誠. "Ontology-Based Distributed Case-Based Reasoning in Virtual R&D." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/81913456409021010438.
Повний текст джерела國立成功大學
製造工程研究所碩博士班
97
With the advent of knowledge economy and virtual R&D models, enterprises get the knowledge not only from themselves but also from others. Distributed case-based reasoning system (DCBRS) plays an important role in virtual R&D by supporting knowledge sharing. This study develops a novel mechanism for ontology-based distributed case-based reasoning using ontology and a proposed multistage algorithm to effectively support knowledge sharing within a virtual R&D environment. Tasks involved in this study are as follows: (i) design an ontology-based distributed case-based reasoning architecture and procedure, (ii) develop techniques related to the ontology-based distributed case-based reasoning, and (iii) implement an ontology-based distributed case-based reasoning mechanism. Developing methods associated with ontology-based distributed case-based reasoning involves the definition and representation of a user query model, definition and representation of a knowledge case model, definition and establishment of a knowledge case index structure, and development of a distributed knowledge case retrieval and knowledge case adaptation methods. Study results will facilitate heterogeneous knowledge sharing among enterprises participating in a virtual R&D.
Senik, Michał. "Ontology adaptation for the distributed control systems management and integration purposes." Rozprawa doktorska, 2017. https://repolis.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=45464.
Повний текст джерелаSenik, Michał. "Ontology adaptation for the distributed control systems management and integration purposes." Rozprawa doktorska, 2017. https://delibra.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=45464.
Повний текст джерелаHung, Tzung-Liang, and 洪宗良. "Optimizing Data Allocation for Distributed Databases on Intranet by Ontology Schema." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/39368252913637698405.
Повний текст джерела朝陽科技大學
資訊管理系碩士班
91
Along with the development of network and database technology, distributed databases are widely used in most of the companies. For the sake of increasing the efficiency of data processing and reducing the cost of data transmission in the distributed databases, the data should be placed in the most appropriate server sites. Most of previous researches assume that the database design is already there and then the data allocation problem is investigated on the existent distributed databases by analyzing the system operation history, such as query frequency and data affinity. In this thesis, an ontology schema will be proposed to analyze and represent the data requirements for a new distributed database system construction, and then two data allocation techniques are proposed to minimize the total transmission cost between server sites with the consideration of usage. In addition, the total transmission cost of a distributed database depends on not only the way of data allocation, but also the intranet topological design. Most of researches were addressed on the topological design problem on particular network architectures and used heuristic algorithms to achieve optimal network connections. In this thesis, a method for intranet design is proposed by establishing an ontology schema for the organizational data, and then sketching an intranet topology to achieve a deterministic solution. An intranet based on this method can not only fulfill the requirements of the enterprise information systems but also provide the minimum total transmission cost.
Lin, Peter, and 林煥國. "A Study of Ontology-Based distributed agent society – An example for election prediction." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/02950904538175430637.
Повний текст джерела國立臺灣科技大學
機械工程系
93
In the developing of knowledge-based applications, we are facing the knowledge management issues in document creation, knowledge discovery, sharing and transferring. How to create a suitable platform to making easy access is a big challenge in recent agent-based system. This research presents a provider-consumer information model to demonstrate the knowledge exchanging process under the Ontology-based message structure. We demonstrate the information flow among agents by using Nash Equilibrium model, specific for Election Prediction application. This multi-agent system is implemented and confirmed to Ontology of FIPA (Foundation for Intelligent Physical Agents) standard. In this paper, a distributed platform is implemented to demonstrate the integration process. Ontology, Agents, and Knowledge Base technologies are got involved to make communication between agents more productive. Agents would be designed to play the specified roles and show up the desirable characteristics such as autonomous, common sense and social ability. Information generated from the agents are well formed to satisfy the FIPA standard. Our case studies demonstrate the communication and their interaction effectively via storing the XML-based information about the definition and relation characteristics into the Knowledge Base.
Chang, Chun-Fu, and 張淳甫. "Design and Implementation of an Ontology-based Distributed RDF Store Based on Chord Network." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/09631080434308445619.
Повний текст джерела大同大學
資訊工程學系(所)
97
RDF and OWL are used as the data model and schema, respectively, to build the distributed knowledge base of the Semantic Web. The components in RDF models, subjects, predicates, and objects, are identified universally on the web, which makes it suitable for distributed operations. In this paper, we employ the distributed hash table (DHT) technology on peer-to-peer network to develop distributed RDF store. To take into account of ontology in RDF, we extend the chord ring to be two-level ring, where the first level is based on the ontology schema and the next one is on the RDF itself. The extension retains the complexity of O(log N) in maintaining and lookup message in an N-node system. The simulation results show that adding an additional level reduces the path length of message lookup. We design three-layered system architecture for the ontology-based distributed RDF store. We are developing a prototype according to the design in this paper to show how the two-level ring works.
Lee, Yang-Yin, and 李昂穎. "On Utilization of Ontology and Retrofitting Techniques for Better Distributed Representations of Words and Senses." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/y7bt2k.
Повний текст джерела國立臺灣大學
資訊工程學研究所
107
With the increasing number of natural language processing tasks, the need for better representation of words (word embedding) and senses (sense embedding) is getting higher in recent years. In this study, we firstly discuss the problem of abnormal dimensions in word embeddings, and then propose models that combine word embedding with ontology. The combination is discussed in three ways: directly combination approach, support vector regression approach and retrofitting approach. In sense embedding, we firstly propose a joint sense retrofitting model that learns better sense embedding from contextual and ontological information, and then generalize the proposed model.
Witherell, Paul W. "Semantic methods for intelligent distributed design environments." 2009. https://scholarworks.umass.edu/dissertations/AAI3380041.
Повний текст джерелаΓεωργουδάκης, Εμμανουήλ. "Εφαρμογή πολυ-πρακτορικού συστήματος με σημασιολογική οντολογία για κάθετη ολοκλήρωση περιβάλλοντος παραγωγής, έμφαση στο επίπεδο ελέγχου παραγωγής". Thesis, 2009. http://hdl.handle.net/10889/4957.
Повний текст джерелаThe present dissertation, focuses and presents an integrated solution to the problem of vertical business integration that is the transparent integration of applications and systems that is possible to operate in different levels within the classical hierarchy of the industrial / production environment. This hierarchy comprises of the ERP, field control and the device layer. The industrial environment is characterized by particular complexity and is highly heterogeneous. As a result, any attempt to modify the existing production processes is particularly difficult. This project, combines standards, established and emerging technologies to address two contradicting requirements: integration and flexibility.
Rockwell, Justin A. "A Semantic Framework for Reusing Decision Making Knowledge in Engineering Design." 2009. https://scholarworks.umass.edu/theses/329.
Повний текст джерелаZaza, Imad. "Ontological knowledge-base for railway control system and analytical data platform for Twitter." Doctoral thesis, 2018. http://hdl.handle.net/2158/1126141.
Повний текст джерелаHASSAN, Ali. "Ajouter de l'information spatiale aux modèles de composant logiciel - l'effet de localisation." Phd thesis, 2012. http://tel.archives-ouvertes.fr/tel-00785897.
Повний текст джерелаΑγγελόπουλος, Παναγιώτης. "Σχεδιασμός και ανάπτυξη διεπαφής πελάτη-εξυπηρετητή για υποστήριξη συλλογισμού σε κατανεμημένες εφαρμογές του σημαντικού ιστού". Thesis, 2009. http://nemertes.lis.upatras.gr/jspui/handle/10889/3740.
Повний текст джерелаIn the past few years, the research that focus on the development of the World Wide Web (WWW) has moved towards more brilliant and automated ways of discovering and exporting the information. The Semantic Web is an extension of the current Web, that explicitly defines the information, thus providing the machines with the possibility to better process and “comprehend” the data, which until now they simply present. For the Semantic Web to function properly, computers must have access to organized collections of information, that are called ontologies. Ontologies provide a method of representing knowledge in the Semantic Web and, consequently, they can be used by computing systems in order to conduct automated reasoning. In order to describe and represent the ontologies of the Semantic Web in machine-readable language, various initiatives have been proposed and are under development, most important of which is the Web Ontology Language - OWL. This language constitutes the base for representing knowledge in the Semantic Web, due to its promotion from the W3C, and its increasing degree of adoption from relative applications. The main tool for the development of applications that manages OWL ontologies, is the OWL API. The OWL API consists of programming libraries and methods, that provide a higher-level interface for accessing and handling OWL ontologies. The theoretical background that guarantees the expressivity and the reasoning of ontologies, is provided from Description Logics. Description Logics constitute a well defined and decidable subset of First Order Logic and make possible the representation and discovery of knowledge in the Semantic Web. As a consequence, in order to discover “clever” information, we have to develop and use systems that are based in Description Logics. These systems are also called Reasoners. Characteristic examples of such tools are FaCT++ and Pellet. From above, it must be obvious why both the OWL API and the Reasoners are used by proposed models of developing next generation (WEB 3.0) Semantic Web applications, for the communication and the submission of “intelligent” questions in knowledge bases. These models also propose the use of a 3-level distributed architecture (3-tier distributed architecture), for the development of Semantic Web applications. Aim of this diploma thesis is to design and implement a Client-Server interface to support Reasoning in distributed applications of the Semantic Web. Specifically, the interface that we will implement consists of two parts. First part provides the essential files for a Reasoner to run in a remote machine (Server). As a result, this machine will provide remote Reasoning services. Second part (Client) contains files, that act additionally to (enhance) the libraries of the OWL API, and give them new features. More precisely, they provide an application, that is implemented with OWL API, with the possibility of using the services that are offered by a remote Reasoner. Consequently, our interface will make possible the use of the OWL API and the Reasoners from proposed distributed architectures for the development of Semantic Web applications.
Pirrò, Giuseppe, and Domenico Talia. "Ontologies and Semantic Interoperability in Distributed Systems." Thesis, 2014. http://hdl.handle.net/10955/409.
Повний текст джерелаSun, Le. "Data stream mining in medical sensor-cloud." Thesis, 2016. https://vuir.vu.edu.au/31032/.
Повний текст джерела