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Hengstebeck, Sandra Marie. "Presentations world wide systems". CSUSB ScholarWorks, 2001. https://scholarworks.lib.csusb.edu/etd-project/1922.
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Bausch, Andrew W. "Simulating a Waltzian world". Click here for download, 2007. http://proquest.umi.com/pqdweb?did=1288668431&sid=1&Fmt=2&clientId=3260&RQT=309&VName=PQD.
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Piccinini, Nicola. "Interacting complex systems: theory and application to real-world situations". Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc1011847/.
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The interest in complex systems has increased exponentially during the past years because it was found helpful in addressing many of today's challenges. The study of the brain, biology, earthquakes, markets and social sciences are only a few examples of the fields that have benefited from the investigation of complex systems. Internet, the increased mobility of people and the raising energy demand are among the factors that brought in contact complex systems that were isolated till a few years ago. A theory for the interaction between complex systems is becoming more and more urgent to help mankind in this transition. The present work builds upon the most recent results in this field by solving a theoretical problem that prevented previous work to be applied to important complex systems, like the brain. It also shows preliminary laboratory results of perturbation of in vitro neural networks that were done to test the theory. Finally, it gives a preview of the studies that are being done to create a theory that is even closer to the interaction between real complex systems.
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Kilembe, Busekese. "RE-VISIONING MARXISM IN WORLD POLITICS: A CRITICAL ANALYSIS OF WALLERSTEIN’S WORLD-SYSTEMS THEORY". Thesis, Malmö högskola, Fakulteten för kultur och samhälle (KS), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-22652.
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This thesis purports to critically analyze Wallerstien’s world-systems theory, to test its strengths and weaknesses and establish its reliability as a world politics theory, thereby reviving Marxism in general. The study employs a qualitative research method to go deep into the underlying logic of the theory.In an endeavor to tackle the matter at hand, five criteria of analysis are employed to examine the merits and demerits in specific areas of the theory. This involves looking at the structure of the theory, the period of the emergence of capitalism, the unit of analysis, the coherence of the arguments and processes of the theory and the reliability of the world-systems theory in contemporary world politics. The main conclusion of the study is that the world-systems theory is reliable when used to explain three themes in world politics. These are global inequality, dependency and sovereignty.
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Suleman, Muhammad Suleman. "Studies in Dynamics of Real-World Complex Systems". Thesis, University of Oxford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531663.
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Pfohl, Katie A. "American Painting and the Systems of World Ornament". Thesis, Harvard University, 2014. http://dissertations.umi.com/gsas.harvard:11537.
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This dissertation examines the work of nineteenth-century American painters Frederic Edwin Church, William Michael Harnett and Albert Pinkham Ryder, and focuses on the relationship between their work in painting and their work in the decorative arts. Through their decorative work, all three artists explored "systems of world ornament" that introduced them to an international range of ornamental form by compiling, cataloguing, and comparing ornament from nearly all cultures and eras. Combining all of world culture single folios, these "systems of world ornament" promised to help American artists and designers study and sort a wide range of cultural influences into temporal and geographic order and thus make sense of the increasingly internationalized nature of American material culture. As this dissertation argues, the study of these "systems of world ornament" became for American artists and designers a powerful--if problematic--tool for distilling the increasingly international nature of American art and culture into a material form--and a formal painterly language--that opened it up to comment and critique. Ornament has to a large extent been understood as a mode of retreat rather than engagement with the clean lines and streamlined aesthetic of the twentieth-century, a crust that had to be cleared from painting's surface so that it might embrace the revolutionary potential of the technological and artistic innovations of the twentieth-century, but this dissertation argues the opposite--that ornament crucially informed American painters' attempts to update painting in response to the artistic challenges of increasingly internationalized twentieth-century life.History of Art and Architecture
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Williams, Shawniqua T. (Shawniqua Tinyka). "Server staffing in real-world telephone service systems". Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36045.
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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.Includes bibliographical references (leaf 62).
by Shawniqua T. Williams.
M.Eng.
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Belkin, Andrey [Verfasser]. "World Modeling for Intelligent Autonomous Systems / Andrey Belkin". Karlsruhe : KIT Scientific Publishing, 2017. http://www.ksp.kit.edu.
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Al-Ghossein, Marie. "Context-aware recommender systems for real-world applications". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLT008/document.
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Les systèmes de recommandation se sont révélés être des outils efficaces pour aider les utilisateurs à faire face à la surcharge informationnelle. D’importants progrès ont été réalisés dans le domaine durant les deux dernières décennies, menant en particulier à l’exploitation de l’information contextuelle pour modéliser l’aspect dynamique des utilisateurs et des articles. La définition traditionnelle du contexte, adoptée dans la plupart des systèmes de recommandation contextuels, ne répond pas à plusieurs contraintes rencontrées dans les applications du monde réel. Dans cette thèse, nous abordons les problèmes de recommandation en présence d’informations contextuelles partiellement observables et d’informations contextuelles non observables dans deux applications particulières, la recommandation d’hôtels et la recommandation en ligne, remettant en question plusieurs aspects de la définition traditionnelle du contexte, notamment l'accessibilité, la pertinence, l'acquisition et la modélisation.La première partie de la thèse étudie le problème de recommandation d’hôtels qui souffre du démarrage à froid continu, limitant la performance des approches classiques de recommandation. Le voyage n’est pas une activité fréquente et les utilisateurs ont tendance à adopter des comportements diversifiés en fonction de leurs situations spécifiques. Après une analyse du comportement des utilisateurs dans ce domaine, nous proposons de nouvelles approches de recommandation intégrant des informations contextuelles partiellement observables affectant les utilisateurs. Nous montrons comment cela contribue à améliorer la qualité des recommandations.La deuxième partie de la thèse aborde le problème de recommandation en ligne en présence de flux de données où les observations apparaissent continûment à haute fréquence. Nous considérons que les utilisateurs et les articles reposent sur des informations contextuelles non observables par le système et évoluent de façons différentes à des rythmes différents. Nous proposons alors d’effectuer de la détection active de changements et d’assurer la mise à jour des modèles en temps réel. Nous concevons de nouvelles méthodes qui s’adaptent aux changements qui apparaissent au niveau des préférences des utilisateurs et des perceptions et descriptions des articles, et montrons l’importance de la recommandation adaptative en ligne pour garantir de bonnes performances au cours du tempsRecommender systems have proven to be valuable tools to help users overcome the information overload, and significant advances have been made in the field over the last two decades. In particular, contextual information has been leveraged to model the dynamics occurring within users and items. Context is a complex notion and its traditional definition, which is adopted in most recommender systems, fails to cope with several issues occurring in real-world applications. In this thesis, we address the problems of partially observable and unobservable contexts in two particular applications, hotel recommendation and online recommendation, challenging several aspects of the traditional definition of context, including accessibility, relevance, acquisition, and modeling.The first part of the thesis investigates the problem of hotel recommendation which suffers from the continuous cold-start issue, limiting the performance of classical approaches for recommendation. Traveling is not a frequent activity and users tend to have multifaceted behaviors depending on their specific situation. Following an analysis of the user behavior in this domain, we propose novel recommendation approaches integrating partially observable context affecting users and we show how it contributes in improving the recommendation quality.The second part of the thesis addresses the problem of online adaptive recommendation in streaming environments where data is continuously generated. Users and items may depend on some unobservable context and can evolve in different ways and at different rates. We propose to perform online recommendation by actively detecting drifts and updating models accordingly in real-time. We design novel methods adapting to changes occurring in user preferences, item perceptions, and item descriptions, and show the importance of online adaptive recommendation to ensure a good performance over time
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Pokrzywa, Revonda Maria. "Systems Biology in an Imperfect World: Modeling Biological Systems with Incomplete Information". Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/39938.
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One of the primary goals of systems biology is to understand the complex underlying network of biochemical interactions which allow an organism to respond to environmental stimuli. Models of these biological interactions serve as a tool to both codify current understanding of these interactions as well as a starting point for scientific discovery. Due to the massive amount of information which is required for this modeling process, systems biology studies must often attempt to construct models which reflect the whole of the system while having access to only partial information. In some cases, the missing information will not have a confounding effect on the accuracy of the model. In other cases, there is the danger that this missing information will make the model useless.
The focus of this thesis is to study the effect which missing information has on systems level studies within several different contexts. Specifically, we study two contexts : when the missing information takes the role of incomplete molecular interaction network knowledge and when it takes the role of unknown kinetic rate laws. These studies yield interesting results. We show that when metabolism is isolated from gene expression, the effects are not limited to those reactions under strong control by gene expression. Thus, incomplete understanding of molecular interaction networks may have unexpected effects on the resulting analysis. We also reveal that under the conditions of the current study, mass action was shown to be the superior substitute when the true rate equations for a biological system are unknown.
In addition to studying the effect of missing information in the aforementioned contexts, we propose a method for limiting the parameter search space of biochemical systems. Even in ideal scenarios where both the molecular interaction network and the relevant kinetic rate equations are known, obtaining appropriate estimates for the unknown system parameters can be challenging. By employing a method which limits the parameter search space, we are able to acquire estimates for parameter values which are much closer to the true values than those which could be obtained otherwise.Ph. D.
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Arunachalam, Subbiah. "What can ICTs do? Perpsectives from the developing world". Bohlau-Verlag, Koln, 2006. http://hdl.handle.net/10150/106004.
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This chapter is from an invited presentation (15 pages long) given at the Aachen Colloquium on Click - A Split World, November 2004. It has appeared in the book [Gespaltene Welt? Technikzugange in der Wissensgesellschaft, edited by Max Kerner and Thomas Muller, and published by Bohlau Verlag, Koln, 2006] and is the author's final version. Introduction: I am asked to reflect on social and cultural consequences of technical development and try to answer a few questions:
â ¢ In what different kind of ways access to knowledge is modified in an information technology-based society that is dominated by technical resources?
â ¢ Does global exchange of information enable ubiquitous access to knowledge?
â ¢ By which means do information technologies contribute to the solution or intensify global and local problems?
â ¢ Which requirements arise from this problem for an IT-based society?
I shall try to answer these questions from the point of view of a Third Worlder.
Most other speakers at this colloquium are thinkers and experts known for their scholarship and academic achievements. I do not belong to the same league. I am not saying this out of humility; I am making a statement of fact. Then why am I here? Because I have felt the impact of information and communication technologies (ICTs) on the developing world and I have been working for many years to overcome the
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deleterious consequences of ICTs in the context of the poor and the marginalized. I wish to share with you what I have learnt through working in the field.
I am coming from India where we had a major election a few months ago. We are happy about the election for two reasons. One, contrary to what is happening in many parts of the developing world, democracy in India is vibrant and we have been holding free and fair elections consistently for more than 50 years. Two, despite outstanding achievements in the areas of high technology in general and information and communication technologies (ICTs) in particular, the ruling governments in the states of Karnataka and Andhra Pradesh belonging to two different parties have failed to return to power, largely because the rural poor voted against them. Thanks to rapid developments in indigenous capabilities combined with favorable policies by the governments in these two southern states of India, a number of IT industries and research laboratories â both Indian and multinational â sprung up, mainly in the capital cities Bangalore (referred to as the Silicon Valley of the East) and Hyderabad (half jocularly called Cyberabad). But these developments did not have a perceptible impact on the rural poor, who felt that they were neglected.
What can information and communication technologies (ICTs) do to help the poor? Can they do anything at all? That is a question that dominates the development discourse. If poverty has been so persistent that we could not eliminate it with all our efforts till now, how can the use of ICTs make a difference? Poverty is much more than absence of money. Often generations in poverty lead people to a sense of utter hopelessness and deprive them of their sense of self-respect and dignity. They are deprived of access to essential assets and opportunities such as education, healthcare, employment, land and other natural resources, services, infrastructure and credit. They have little say in their polity and society. They are not empowered to participate in making the decisions that shape their lives. They become increasingly marginalized, excluded and vulnerable to exploitation. This exploitation manifests in several forms such as bonded labour, child labour, inadequate compensation for work if and when they get work, ill treatment and deprivation of basic rights. It will be naïve to believe that we can solve the problem of poverty by providing access to computers and telecommunication to the poor of the world.1
We have always lived in an unequal world, but now the gap between information â havesâ and â have-notsâ is widening fast. As Kofi Annan2 has noted, â there is a real danger that the worldâ s poor will be excluded from the emerging knowledge-based
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global economy.â Virtually every new technology tends to exacerbate the inequalities that separate the rich from the poor.
The last few years have seen many initiatives that deploy ICTs in rural communities in many developing countries. Many world leaders have spoken in glorious terms about the tremendous potential of these new technologies in transforming the lives of the poor. â Technology doesnâ t come after you deal with poverty, but is a tool you use to alleviate poverty,â says James D Wolfensohn, President of the World Bank. Says Mark Malloch Brown, Head of UNDP, â ICTs can help us reach the Millennium Development Goals including the goal of halving poverty by 2015.â
It is mastery over technology that enabled the early adopters of industrial revolution technologies to colonize and exploit the rest of the world. If the developing countries fail to take advantage of the new ICTs, the consequences could be far more serious. If we want technology to work for the poor we must make special efforts. In this talk I will describe from my own personal experience two widely different programmes where we are attempting to bridge the gulf that divides the rich from the poor through innovative use of information and communication technologies.
In the first part of my talk we will look at how we at the M S Swaminathan Research Foundation (MSSRF) are trying to harness ICTs as part of a holistic strategy for alleviating poverty in rural India. I will show why the emphasis should be on people and the public commons approach rather than on technology. In the second part, we will look at how the advent of new technologies has opened up the possibility for making knowledge distribution in science and scholarship a level-playing field. Here again the public commons approach is the key to success.
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Stremlin, Boris. "Constructing a multiparadigm world history civilizations, ecumenes and world-systems in the ancient Near East /". Diss., Online access via UMI:, 2006.
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Leshchenko, Y. V. "Automation in the modern world". Thesis, Дніпровський національний університетт залізничного транспорту ім. В. Лазаряна, 2019. https://er.knutd.edu.ua/handle/123456789/14567.
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The main features and problems of the production process automation have been investigated in the given article.У статті розгянуто особливості впровадження автоматизованих технологій у процес виробництва.
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Begley, Taylor A. "REDUCED FREQUENCY MOTOR STARTING FOR THIRD WORLD POWER SYSTEMS". UKnowledge, 2009. http://uknowledge.uky.edu/gradschool_theses/607.
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People in modern industrialized societies live a blessed life relative to those who do not when it comes to some modern conveniences. While many think nothing of flipping on a light switch or running electric appliances, there are people in third world countries could not imagine such things. As service projects are being undertaken to bring such conveniences to those less fortunate, there often is the harsh reality of a strict budget. An item that commands a large portion of said budget is often the diesel generator used to provide the facility with electricity. Generators serving motor loads are typically oversized due to a large kVA starting requirement. This paper addresses an approach to this problem by temporarily restricting the generator fuel supply by pulling back the rack of the mechanical governor reducing the frequency and voltage output as a motor load is switched onto the system. By reducing the voltage and frequency output of the generator, the motor is switched on at a time when its typically poor power factor and resulting kVA requirement is mitigated by the lower voltage and frequency allowing for a smaller generator to be used.
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Rodríguez, Salazar Fernando. "Small-world interconnection networks for large parallel computer systems". Thesis, University of Glasgow, 2004. http://theses.gla.ac.uk/6740/.
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The use of small-world graphs as interconnection networks of multicomputers is proposed and analysed in this work. Small-world interconnection networks are constructed by adding (or modifying) edges to an underlying local graph. Graphs with a rich local structure but with a large diameter are shown to be the most suitable candidates for the underlying graph. Generation models based on random and deterministic wiring processes are proposed and analysed. For the random case basic properties such as degree, diameter, average length and bisection width are analysed, and the results show that a fast transition from a large diameter to a small diameter is experienced when the number of new edges introduced is increased. Random traffic analysis on these networks is undertaken, and it is shown that although the average latency experiences a similar reduction, networks with a small number of shortcuts have a tendency to saturate as most of the traffic flows through a small number of links. An analysis of the congestion of the networks corroborates this result and provides away of estimating the minimum number of shortcuts required to avoid saturation. To overcome these problems deterministic wiring is proposed and analysed. A Linear Feedback Shift Register is used to introduce shortcuts in the LFSR graphs. A simple routing algorithm has been constructed for the LFSR and extended with a greedy local optimisation technique. It has been shown that a small search depth gives good results and is less costly to implement than a full shortest path algorithm. The Hilbert graph on the other hand provides some additional characteristics, such as support for incremental expansion, efficient layout in two dimensional space (using two layers), and a small fixed degree of four. Small-world hypergraphs have also been studied. In particular incomplete hypermeshes have been introduced and analysed and it has been shown that they outperform the complete traditional implementations under a constant pinout argument. Since it has been shown that complete hypermeshes outperform the mesh, the torus, low dimensional m-ary d-cubes (with and without bypass channels), and multi-stage interconnection networks (when realistic decision times are accounted for and with a constant pinout), it follows that incomplete hypermeshes outperform them as well.
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Jing, Junbo. "Vehicle Predictive Fuel-Optimal Control for Real-World Systems". The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534506777487814.
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Janjic, Vuk. "Mining real-world networks in systems biology and economics". Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/29869.
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Recent advances in biotechnology have yielded an explosion of data describing biological systems, creating rich opportunities for new insights into cellular inner-workings and therapeutic discoveries. To keep up with this rapid growth and increase in data complexity, we need novel static, integrative, and dynamic methodologies to continue mining these networked systems. In this thesis we introduce new static, integrative, and dynamic computational frameworks for network analysis, and combine existing ones in new ways, to elucidate the biotechnological biases and functional principles governing molecular interactions and their implications in disease. We focus on mining new knowledge from the yeast and human interactomes, since these are currently the most complete data in biology. We perform three lines of experimental work: 1) the macro-scale study, where we model the yeast and human interactomes and show that their interactome data are growing in structurally and functionally principled ways, characterised by a non-random dual topological nature; 2) the micro-scale study, where we zoom into the specifics of wiring patterns around individual genes and uncover a unique core sub-structure within the human interactome, which contains driver genes dubbed to be the main triggers for disease onset; and 3) the data integration study, where we introduce a new computational framework for fusing multiple types of molecular interaction data and use it to construct the first unified model of the cell's functional organisation and cross-communication lines. Similarly, a new field of systems economics has gained recent attention, with more financial and economic network data emerging at an increasing pace. Hence, we introduce a new computational methodology for tracking network dynamics and use it to quantify the micro- and macro-scale topological changes in the world trade network over the past 50 years, and to demonstrate the fundamental relationship between topological perturbations and indicators of countries' political and economic stabilities.
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Kahen, Goel. "Strategic planning systems in technological development". Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336467.
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Persson, Robin. "Dataspelsberoende : - Och spelkomponenter i World of Warcraft". Thesis, Örebro University, Department of Business, Economics, Statistics and Informatics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-1200.
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Diskussionen i Sverige angående dataspelsberoende och att främst att ungdomar, spenderar
mycket av sin vakna tid framför spelen, har på senare tid tagit fart i media. Många har
diskuterat om inte detta är ett samhällsproblem. WoW (World of Warcraft) är ett av de
populäraste spelen i världen och lockar väldigt många individer.
Syftet med denna uppsats har varit att undersöka spelet WoW för att ta reda på vilken eller
vilka av dess spelkomponenter som kan ha ett samband med ett beroende. Detta har gjorts
genom experiment, observation och intervju av individer som spelar spelet.
Syftet anses uppnått och frågeställningen i arbetet har besvarats. De komponenter som ansågs
ha ett samband med beroende var Spelare (spelarna i spelet påverkade varandra på en social
nivå) och Karaktärsuppgraderingen (jakten efter att få sin karaktär att bli bättre och bättre).
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O'Rourke, William Thomas. "Real-world evaluation of mobile phone speech enhancement algorithms". [Gainesville, Fla.] : University of Florida, 2002. http://purl.fcla.edu/fcla/etd/UFE0000585.
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KHOURY, GEORGE SAMIR. "THE WORLD SOCIAL FORUM: A COMMUNICATION PLATEAU IN THE WORLD SOCIAL FORUM'S CHARTER OF PRINCIPLES". University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1195595566.
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Claes, D. "Decentralised multi-robot systems towards coordination in real world settings". Thesis, University of Liverpool, 2018. http://livrepository.liverpool.ac.uk/3020633/.
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In recent years, Multi-Robot Systems (MRS) have gained significant interest in research and in industry (Khandelwal and Stone, 2017; E. Schneider et al., 2016; Amato et al., 2015; Alonso-Mora et al., 2015b; Enright and Wurman, 2011). Manufacturers are moving away from large one-size-fits-all productions to more customisable on demand production, which result in smaller and smaller batch sizes. Additionally, in order to be able to increase productivity even further, more and more tasks in the production process have to be automated. To accommodate these changes, industry is facing major shifts in how the products are produced and in particular the role robotic platforms are playing. Previously, robots have mainly been used in a static manner, i.e. performing a singular repetitive task over and over again with high precision and speed. When multiple robots are employed in such a setup, each robot performs a dedicated task, with no interaction with the other robots. While this approach was suitable for large-scale productions, it cannot maintain the same productivity for highly customisable products. Additionally, many tasks in the production process require that the robots are mobile, since they are spatially distributed. One example is for instance retrieving items from different locations in a warehouse. Furthermore, another requirement is that every robot should be able to handle many different tasks and more importantly, many robots should work together in a team towards a common goal. These new requirements introduce various new challenges. As an example, since the robots are mobile, they should be able to perform the tasks alongside the human workers. Likewise, since multiple robots have to work together, a new challenge is to coordinate such MRS. The work presented in this thesis focuses on the core issues when deploying MRS in the physical world. We focus on the task of warehouse commissioning as a running example. The environment for this task is highly dynamic, adaptive and complex, since new orders can appear at any time and priorities might change. A major issue is to coordinate the robots, while taking current and possible future tasks into account. One solution is a centralised planning entity, which knows about all tasks and robots in the team and assigns the tasks accordingly. While in the case of a handful robots, a good assignment can usually be calculated in a straight forward manner, a problem with a centralised system arises when more and more robots are added to the system. The number of possible assignments rises exponentially with every additional robot. Thus, planning times increase and it might become infeasible to provide an optimal plan in time or to respond quickly to changes. On the other hand, in a decentralised solution, each robot decides on its own. Thus, it accumulates all necessary information, and calculates a plan based on this information. While the robots might not have all information available, this is in many cases not necessary. The planning robot is mainly interested in its own actions. While the robot should take the other robots into account, this effect can be approximated, and not every single action of the other robots is needed. This results in a much less complex planning problem, which allows the robot to re-plan online, as soon as the environment changes. In this thesis, we focus on such decentralised solutions for MRS that can run online on the robots. We investigate navigation, decision making and planning algorithms that are suitable for problems in which the tasks are highly dynamic and spatially distributed, such as the warehouse commissioning example. We explore how a team of robots can navigate safely in a shared environment with humans. We apply Monte Carlo sampling techniques and trajectory rollouts as used in the commonly used Dynamic Window Approach (DWA) (Fox et al., 1997), while taking the localisation uncertainty into account. We show that our resulting navigation method is robust and able to run decentralised on the robots. To facilitate formal evaluation of planning and decision making algorithms, a formal framework called Spatial Task Allocation Problems (SPATAPs) is introduced, that enables us to capture and analyse these problems in the well known Markov Decision Process (MDP) (Puterman, 1994) and Multi-Agent Markov Decision Process (MMDP) (Boutilier, 1996) frameworks. The commonly used MDP solution methods, i.e. value iteration and dynamic programming, fail to provide a solution, due to the large problem space. We investigate whether we can exploit the structure of these problems and introduce approximations to enable planning using the common solution methods. We further refine the framework to formally capture the warehouse commissioning task. A solution method based on Monte Carlo Tree Search (MCTS) (Kocsis and Szepesvári, 2006) is introduced, using computationally cheap greedy roll-out strategies. We show that the resulting approach can yield significantly higher performance than previous approaches, while still being able to plan within the magnitude of seconds, which allows for online re-planning on the robots. Finally, the decision making algorithm and the navigation approach are combined in a proof-of-concept application, in which three youBots are used in a physical warehouse commissioning setup.
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Rowden, Jessica. "Application of two mathematical modelling approaches for real world systems". Thesis, University of Surrey, 2015. http://epubs.surrey.ac.uk/806976/.
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One of the biggest challenges in building intricate realistic real world models is to incorporate data and their subsequent analysis. When analysing such a system, researchers typically only use one of two modelling methodologies. The first modelling methodology is “keep it simple stupid” (KISS), which aims to capture the simplified, sometimes extremely abstract behaviours of the real world. By not including all of the intricate features of a system, leads to the problem of having to justify an abstract model to represent the real world and for the results to be verified through theoretical reasoning. However, this method is often easier to construct and yields a clear overview of the system’s behaviour. The second modelling approach is the “keep it descriptive stupid” (KIDS) approach that aims to include more vital features or behaviours of a system. The justification of using these highly descriptive models is easier, as it captures more intricate behaviours, but are often significantly more difficult to build and to analyse. This thesis shows that by using the KISS methodology to analyse the system as a whole, vital information about the build of the KIDS model, i.e. which behaviours need to be simulated, can be obtained. This simplifies the process for building the KIDS model and ensures that the general behaviour of the system is included. The KIDS model is then used to analyse how the intricate behaviours influence the system. I demonstrate this approach on two case studies, where the first investigates how impacts such as a leader’s reputation and family’s party preference influencing an individual voter alters the re-election rate of a leader or party. The second case study analyses how policies impact the UK phosphorus and nitrogen flows.
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Kelly, Liam Patrick. "Hacking Systems, Hacking Values: Interactive Theories For An Interactive World". Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/36477.
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Langdon Winner's article "Do Artifacts Have Politics?" (1986) has become a classic piece within Science and Technology Studies. While Winner was certainly not the first to consider the inherently political qualities of technology, his article has assumed the role of a touchstone for both supporters and critics of the idea that artifacts embody political and social relationships. In the chapters that follow, I shall try to answer Winner and his critics, by studying a particular technology that I believe to be capable of shedding some much-needed light on the issue. My aim is provide a restatement of Winner's question in the pages that follow, with the hope of getting past such problematic terms as "embodiment" and "encapsulation." My hope is to make the issue itself clearer, so that we can get to the heart of how technology, values, and human beings systematically interact.
I shall utilize in my discussion computer network scanning software. I shall first discuss the background to the question "Do Artifacts Have Politics?" and then describe some of the ethical and political forces alive in the computer security world. Next I shall closely examine two particular pieces of network scanning software and describe their interactions in terms of political and ethical motivations. Finally, I shall use this case study as a basis for a broader discussion of how values may be better conceived in terms of complex interactive systems of human beings and technologies.
Master of Science
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Freeman, Mark Allen. "ENVIRONMENTAL SECURITY IN THE GLOBAL CAPITALIST SYSTEM: A WORLD-SYSTEMS APPROACH AND STUDY OF PANAMA". Master's thesis, University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3008.
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The current global capitalist system is at odds with environmental protection and the protection of indigenous people that are directly linked to the land on which they live. In environmental security literature, many have argued that, theoretically and functionally, it is possible to link national security with environmental security. However possible this may be on paper, in practice, the global capitalist system prevents this from becoming a reality. Using a world-systems approach, this thesis will show that core countries seeking to expand capital by tapping into new markets, locating new sources of raw materials and even forming strategic military partnerships in periphery countries unavoidably degrade the natural environment and thus, adversely affect the lives and health of indigenous people. It is also the argument in this paper that the primary purpose of strategic military partnerships with periphery states, such as those formed in Panama and Colombia, are primarily meant to protect economic interests, thus perpetuating the capitalist cycle. The end result is that, while it is theoretically possible, through a different theoretical lens, to bridge the definitional and theoretical gulf between national security and environmental security, the reality of the system subverts this endeavor, and will continue to do so under its current configuration.M.A.
Department of Political Science
Sciences
Political Science MA
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Nelson, T. "Integrating action research and journey making during real-world organizational strategy development". Thesis, University of Strathclyde, 2003. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21248.
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Information systems (IS) researchers and practitioners have for some time now been advocating the use of Action Research as an appropriate means of undertaking work in the field of information systems (Checkland and Scholes, 1990; Mansell, 1991; Stowell and West, 1994; Baskerville and Wood-Harper, 1996,1998; Stowell, West and Stansfield, 1997; Checkland and Holwell, 1998, West and Stansfield, 2001; Mumford, 2001). Yet little has been written about the application of Action Research during the real-world development of organizational strategic plans, where an important aim of the Action Researcher is also the attainment of an academic qualification. A possible explanation for this may be the amount of controversy that still surrounds the theoretical principles (Cady and Caster, 2000) and the practice and application (Stowell et. al, 1997) of Action Research. In particular, Action Research has been criticised for producing research with little action or action with little research (Foster, 1972), lacking in the rigor of true scientific research (Cohen and Manion, 1980), lacking in validity of data (Baskerville and Wood-Harper, 1996), lacking in internal and external control (Merriam and Simpson, 1984) and likely to be a problematic research method for doctoral students (Eden and Huxham, 1993,1995,1996). This doctoral research programme has been set up to investigate two 'themes'. The first, of more research/academic interest, concerns the development and testing of a diagrammatic Action Research Approach that will help to ensure the delivery of valid/robust research results. Also, because most existing diagrams don't describe Action Research at a more useful lower 'micro' level (Lau, 1997). The second research theme, of more practical interest, concerns understanding what can happen when a 'novice' practitioner attempts to use Action Research and JOURNEY Making (Eden and Ackermann, 1998) to solve a real-world organizational strategic problem. To ensure that the research is seen as 'valid' Action Research, Checkland and Holwell's (1998) 'FMA' model is applied because "This is the intellectual structure which will lead to findings and research lessons being recognised as such. Without that declaration, it is difficult to see how the outcome of Action Research can be more than anecdotal" (p. 13-14).
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Timmons, Alysha Marie. "World Wide Graphics". CSUSB ScholarWorks, 2001. https://scholarworks.lib.csusb.edu/etd-project/2089.
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The scope of this project describes World Wide Graphics (WWG) a software package that provides instructors with the tools needed to present a web-based presentation to a group of students while having the ability of enhancing the prepared HTML slide with userdrawn graphics and highlighting.
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Appaneni, Viri, i Yenus Likisa. "Using Virtual World in Education: The case of Second Life". Thesis, Linnéuniversitetet, Institutionen för datavetenskap, fysik och matematik, DFM, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-13837.
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With technology being advanced and many new teaching methods being implemented, considering virtual worlds for teaching is quite innovative and interesting. A virtual environment is an artificially constructed representation of a natural or imagined environment. Virtual worlds consist of enactment for terrains, avatars, objects, textures, and other forms of digital assets. Many virtual worlds like Alpha World, Delta 3D, Second Life etc. are available today. An avatar can be defined as a computer user’s representation of him/her-self within the virtual environment. Today, educational institutes have been using virtual worlds in various fields like designing user interfaces, nursing courses, cooperate training, leadership training programmes. But certain aspects need to be examined thoroughly like how virtual spaces are influencing education, how students and teachers understand learning in virtual worlds while interacting through avatars where communication lacks body language and is limited to seeing, hearing and talking. Our study was conducted on a single course called Business Talking offered in Second Life by Linnaeus University.This course mainly emphasizes on technical and administrative presentations in English. The main purpose of our study is to investigate how students and teachers understand learning in such environments and identifying the factors which are related to this. Relating to the purpose the research question “How do students and teachers perceive learning through avatar-based interaction in virtual world environments? ” was investigated. Pedagogy and general theories like constructivism, cognition, virtual world, synchronous versus asynchronous e-learning were used in our study. A qualitative interpretative case study was conducted. Data was collected through observations and interviews. All the sessions of the course were observed and interviews were made with five students and one teacher of the course. The main results include students perceive more through avatar education as they get a sense of real feeling when compared to other online education systems. Also, performing activities in different places of SL such as camp fire, near waterfalls, different cultural places etc. made them perceive well as they feel relaxed and less pressure. Second Life's environment helps to simulate real conditions and situations which help them to perceive more. But factors like usability of avatars, technical problems and getting adapted to the environment play an unfavourable role in perceiving learning. Both the teachers and students have to be constructive and good pedagogical decisions have to be made when a problem arises. Another main result was that, lack of body language does effect in perceiving learning.
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Kleineberg, Kaj Kolja. "Evolution and ecology of the digital world: A complex systems perspective". Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/400404.
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Online social networks (OSNs) enable researchers to study the social universe at a previously unattainable scale. The worldwide impact and the necessity to sustain their rapid growth emphasize the importance to unravel the laws governing their evolution. We present a quantitative two-parameter model which reproduces the entire topological evolution of a quasi-isolated OSN with unprecedented precision from the birth of the network. This allows us to precisely gauge the fundamental macroscopic and microscopic mechanisms involved. Our findings suggest that the coupling between the real pre-existing underlying social structure, a viral spreading mechanism, and mass media influence govern the evolution of OSNs. The empirical validation of our model, on a macroscopic scale, reveals that virality is four to five times stronger than mass media influence and, on a microscopic scale, individuals have a higher subscription probability if invited by weaker social contacts, in agreement with the "strength of weak ties" paradigm. The simultaneous existence of numerous digital services naturally raises the question under which conditions these services can coexist. In analogy to population dynamics, the digital world is forming a complex ecosystem of interacting networks whose fitnesses depend on their ability to attract and maintain users' attention, which constitutes a limited resource. We introduce an ecological theory of the digital world which exhibits a stable coexistence of several networks as well as the domination of a single one, in contrast to the principle of competitive exclusion. Interestingly, our model also predicts that the most probable outcome is the coexistence of a moderate number of services, in agreement with empirical observations. In addition, we discuss the impact of heterogeneity in network fitnesses induced by competition between an international network, such as Facebook, and local services. To this end, we construct a 1:1000 scale model of the digital world, consisting of the 80 countries with the most Internet users. We show how inter-country social ties induce increased fitness of the international network. Under certain conditions, this leads to the extinction of local networks; whereas under different conditions, local networks can persist and even dominate the international network completely. Finally, we investigate how multiple coexisting networks, which form a so called multiplex system, facilitate search and navigation with only local knowledge. This task is especially important in decentralized architectures. In particular, we show that multiplex systems are not random combinations of single network layers. Instead, they are organized in specific ways dictated by hidden geometric correlations between the individual layers. We find that these correlations are strong in different real multiplexes, and form a key framework for answering many important questions. Specifically, we show that these geometric correlations facilitate: (i) the definition and detection of multidimensional communities, which are sets of nodes that are simultaneously similar in multiple layers; (ii) accurate trans-layer link prediction, where connections in one layer can be predicted by observing the hidden geometric space of another layer; and (iii) efficient targeted navigation in the multilayer system using only local knowledge, which outperforms navigation in the single layers only if the geometric correlations are sufficiently strong. Interestingly, many real systems fulfill these conditions. To conclude, from a system-level perspective, a prospering future in the digital age comprised of a diverse digital landscape with interacting, decentralized architectures is possible, but so is the opposite. It remains a task for society to create sufficient awareness and the correct incentives to create this future we desire.Esta tesis está dedicada a los retos de un mundo interconectado que ha emergido a partir de la reciente revolución digital en el que servicios digitales se desarrollan y compiten en la ausencia de control central. Por tanto, herramientas, ideas y técnicas de análisis de sistemas complejos son útiles y especialmente adecuadas para describir la evolución y competencia entre redes sociales online. El éxito del Internet ha conectado individuos a escalas sin precedentes y la Web 2.0 promociona hoy en día colaboración global y el intercambio de ideas casi instantáneo. Sin embargo, la dominación de unos pocos poderosos monopolios de información representa un peligro para la libertad de ideas y decisiones de individuos. Por tanto, dos factores son esenciales para un futuro próspero en la era digital: diversidad digital y decentralización. En cuanto al primero, hemos introducido modelos basados en observaciones empíricas que permiten entender mejor la dinámica y las interacciones competitivas de las redes sociales online, los sistemas claves en el cosmos de la Web 2.0. En particular, nuestros descubrimientos revelan las condiciones en las cuales la diversidad digital se puede sostener. Con respecto al segundo, el diseño de arquitecturas descentralizadas contiene retos específicos, entre los que nos dirigimos especialmente a la búsqueda y navegación basada exclusivamente en conocimiento local. Hemos revelado en qué condiciones la existencia de muchas redes interaccionando facilita estas tareas. Afortunadamente, muchos sistemas reales cumplen estas condiciones. Para concluir, desde una perspectiva a nivel de sistema, un futuro próspero en el mundo digital compuesto por un paisaje digital diverso con arquitecturas descentralizadas en constante interacción es posible, pero no seguro. En esta situación, la conciencia, así como la creación de los incentivos adecuados, son retos importantes que nuestra sociedad debe afrontar. Crear conciencia suficiente e incentivos correctos para crear ese futuro sigue siendo un reto para la sociedad.
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Belkin, Andrey [Verfasser], i J. [Akademischer Betreuer] Beyerer. "World Modeling for Intelligent Autonomous Systems / Andrey Belkin ; Betreuer: J. Beyerer". Karlsruhe : KIT-Bibliothek, 2015. http://d-nb.info/1116427621/34.
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Christopher, Alan Fred. "A systems approach to organisational change leading to world class manufacturing". Master's thesis, University of Cape Town, 1993. http://hdl.handle.net/11427/9660.
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The author has reviewed World Class Manufacturing and considered the traditional ways of embarking on world class manufacturing initiatives. The reason for the failure of many of these initiatives has been argued. From a systems theory of organisations and the theory of levels of existence, a systemic process to becoming a world class manufacturing organisation has been postulated. This process has been formulated into a Coping Development model. A critique of the model has been included. The critique discusses obstructions to development and draws conclusions regarding the models application.
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Balla, Katalin. "The complex quality world : developing quality management systems for software companies /". Eindhoven : Technische Universiteit Eindhoven, 2001. http://alexandria.tue.nl/extra2/200210482.pdf.
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Thesis (Ph.D.) -- Technische Universiteit Eindhoven, 2001.Printout. [London : British Library], printed 20 December 2004. xv, 190 p : ill. (some col.) ; 30 cm. Includes bibliographical references and index.
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Göhring, Daniel. "Constraint based world modeling for multi agent systems in dynamic environments". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2009. http://dx.doi.org/10.18452/16040.
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Die mobile Robotik stellt ein sehr junges und komplexes Forschungsfelder unserer Zeit dar. Innerhalb der letzten Jahrzehnte wurde es Robotern möglich, sich innerhalb ihrer Umgebung zu bewegen, zu navigieren und mit ihrer Umwelt zu interagieren. Aufgrund der Tatsache, dass die Welt von Unsicherheit geprägt ist und ein Roboter immer nur partielle Information über sie erhalten kann, wurden probabilistische Navigationsverfahren entwickelt, mit denen sich Roboter lokalisieren und Objekte ihrer Umgebung modellieren können. Weiterhin wurden in letzter Zeit Verfahren untersucht, die die kooperative Exploration der Umgebung durch eine Gruppe von Robotern zum Ziel haben. In der vorliegenden Arbeit wird ein neuartiges Konzept, welches sich Perzeptrelationen für die kooperative Umweltmodellierung zu Nutze macht, vorgestellt und evaluiert. Einen zweiten Beitrag der Arbeit stellen constraintbasierte Lokalisierungstechniken dar, die es einem oder mehreren Robotern auf effiziente Art und Weise ermöglichen, sich zu lokalisieren und ihre Umwelt zu modellieren.Mobile autonomous robotics is a very young and complex field of research. Only in recent decades have robots become able to explore, to move, navigate and to interact with their environment. Since the world is uncertain and since robots can only gain partial information about it, probabilistic navigation algorithms have become very popular whenever a robot has to localize itself or surrounding objects. Furthermore, cooperative exploration and localization approaches have become very relevant lately, as robots begin to act not just alone but in groups. Within this thesis a new approach using the concept of spatial percept-relations for cooperative environment modeling is presented and evaluated. As a second contribution, constraint based localization techniques will be introduced for having a robot or a group of robots efficiently localized and to model their environment.
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Kazanjian, Garabet. "Primary production in shallow freshwater systems amid a rapidly changing world". Doctoral thesis, Humboldt-Universität zu Berlin, 2019. http://dx.doi.org/10.18452/20561.
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Kleine, flache Gewässer gelten als sogenannte „hotspots“ der Primärproduktion und Kohlenstoffbindung. Diese Doktorarbeit zielt darauf ab, die Primärproduktion verschiedener kleiner Gewässer zu quantifizieren sowie die Mechanismen, die den Kohlenstoffkreislauf dieser Systeme beeinflussen, zu analysieren. Der Fokus liegt dabei auf dem Einfluss globaler Veränderungen, die diese Mechanismen verändern können
Im ersten Abschnitt wurde die Primärproduktion (PP) in kleinen, temporären Söllen untersucht, die sehr anfällig für Störungen sind. Ich konnte zeigen, dass die PP der Sölle im Sommer außergewöhnlich hoch ist, was hauptsächlich auf eine hohe Makrophytenproduktion zurückzuführen ist
Im zweiten Teil analysiere ich die Ergebnisse eines Experiments zum Einfluss erhöhter Temperaturen auf die benthische PP kleiner Gewässer im Frühjahr. Acht Mesokosmen wurden bei normalen und um 4°C erhöhten Wassertemperaturen gemäßigter Breiten betrieben. In der ersten Hälfte des Experiments konnte ich eine erhöhte benthische PP in den erwärmten Mesokosmen feststellen, die auf direkte Temperatureffekte und indirekte Auswirkungen einer höheren Nährstoffverfügbarkeit zurückzuführen war. Anfang Juni stieg jedoch der Einfluss der Makroinvertebraten auf das Periphyton in den erwärmten Mesokosmen, so dass keine Unterschiede in der PP mehr auftraten.
Schließlich, untersuche ich die Resilienz eines Sees gegenüber einem plötzlichen Eintrag gelösten organischen Kohlenstoffs (DOC) aus dem terrestrischen Umland, der zu einer starken Braunfärbung des Wassers führte. Der Fokus liegt dabei auf Veränderungen der Wasserqualität und der aquatischen PP des Sees, nachdem sich die DOC-Konzentration verfünffacht hatte. Drei Jahren nach Erreichen der maximalen DOC- und Gesamt-Phosphor im See sanken diese signifikant, lagen jedoch noch immer 1,5- bzw. 2-fach oberhalb der Ausgangskonzentrationen vor dem DOC-Eintrag. Die benthische PP zeigte eine teilweise Erholung, erreichte jedoch ebenfalls nicht die Ausgangswerte.Small, shallow freshwater ecosystems are now considered hotspots of primary production & carbon sequestration. Yet till recently they’ve been mostly neglected. This thesis aims at explaining the underlying mechanisms affecting carbon cycling in these systems, particularly focusing on how contemporary global changes alter ecological equilibria. In the first section, using a compartmental approach, I study primary production in small, temporary ponds (kettle holes) within agricultural fields that are highly susceptible to environmental & anthropogenic disturbances. I show that summertime gross primary production (GPP) in kettle holes is exceptionally high, mostly driven by a strong macrophyte production. In winter, periphyton contributes to the majority of the systems’ GPP. High summertime deposition, correlated to GPP, and low sediment mineralization rates, signified a high potential for carbon burial. In the second experiment, I test the impact of increased temperatures on periphyton production during spring. I use eight mesocosms running at normal & +4°C temperatures. Initially, I recorded elevated periphyton GPP in the warmed treatment driven by direct temperature effects & indirect effects of higher nutrient availability. By late spring, the trend is reversed due to increased grazing pressure in the warm treatment. In the third study, I investigate a lake’s resilience to a sudden brownification event: A 5-fold increase in dissolved organic carbon (DOC) concentrations. Within three years after peak brownification, the lake DOC & total phosphorous concentrations dropped significantly but seem to have plateaued at 1.5 & 2-fold their pre-brownification levels, respectively. Consequently, benthic GPP, which had collapsed due to light limitation at peak brownification, marked only a partial recovery, while phytoplankton (& whole-lake) GPP remained higher than pre-brownification levels. Phytoplankton & periphyton exhibited an inverse response to DOC & TP concentrations.
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AlMofawez, Meshail. "Oppression of Women in the Islamic World and Gender Inequality in Saudi Arabia". Digital Commons at Loyola Marymount University and Loyola Law School, 2016. https://digitalcommons.lmu.edu/etd/347.
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The Kingdom of Saudi Arabia (KSA) is considered an advanced, developed, and industrialized nation. It is the only Arab nation that is a member of the G20, a group from the world's top 20 industrialized nations. Despite economic advancement, social progress has been stagnant. Saudi women do not enjoy equal rights to men, and gender-based discrimination and mistreatment is integrated into KSA's social, political and economic systems. KSA is the only country in the world which bans women from driving. Additionally, KSA's laws reinforce subservient status of women, such as the "male guardian" legal requirement, which deprives women of autonomy in personal decisions, including the freedom to travel without the company of a man. On the other hand, Saudi women have high literacy rates and education levels by international comparison - more than 57% of Saudi women possess a college degree. In stark contrast, female labor participation rates are among the lowest of any developed nation. There is a glimmer of hope that society is making progress. In 2011, King Abdullah granted women the right to vote and take part in local politics as of the year 2015.
This project aims to build momentum and capitalize on KSA's recent societal progress by proposing a comprehensive solution using a system's approach to address gender inequity and women's rights issues in the KSA labor market. Systems Engineering (SE) guides this project's stages and activities. This starts with exploratory research, then defines the problem, identifies key stakeholders and documents requirements. This information will provide the basis for the system concept solution's requirements and architecture. The result of this project is a proposed system solution - a comprehensive program implemented and operated by the KSA government, which has undergone verification and validation to ensure that this system is both "built right" and that "the right system was built."
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Shapiro, B. Jesse (Benjamin Jesse). "Genomic signatures of sex, selection and speciation in the microbial world". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/61788.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Computational and Systems Biology Program, 2010.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (p. 218-228).
Understanding the microbial world is key to understanding global biogeochemistry, human health and disease, yet this world is largely inaccessible. Microbial genomes, an increasingly accessible data source, provide an ideal entry point. The genome sequences of different microbes may be compared using the tools of population genetics to infer important genetic changes allowing them to diversify ecologically and adapt to distinct ecological niches. Yet the toolkit of population genetics was developed largely with sexual eukaryotes in mind. In this work, I assess and develop tools for inferring natural selection in microbial genomes. Many tools rely on population genetics theory, and thus require defining distinct populations, or species, of bacteria. Because sex (recombination) is not required for reproduction, some bacteria recombine only rarely, while others are extremely promiscuous, exchanging genes across great genetic distances. This behavior poses a challenge for defining microbial population boundaries. This thesis begins with a discussion of how recombination and positive selection interact to promote ecological adaptation. I then describe a general pipeline for quantifying the impacts of mutation, recombination and selection on microbial genomes, and apply it to two closely related, yet ecologically distinct populations of Vibrio splendidus, each with its own microhabitat preference. I introduce a new tool, STARRInIGHTS, for inferring homologous recombination events. By assessing rates of recombination within and between ecological populations, I conclude that ecological differentiation is driven by small number of habitat-specific alleles, while most loci are shared freely across habitats. The remainder of the thesis focuses on lineage-specific changes in natural selection among anciently diverged species of gamma proteobacteria. I develop two new metrics, selective signatures and slow:fast, for detecting deviations from the expected rate of evolution in 'core' proteins (present in single copy in most species). Because they rely on empirical distributions of evolutionary rates across species, these methods should become increasingly powerful as more and more microbial genomes are sampled. Overall, the methods described here significantly expand the repertoire of tools available for microbial population genomics, both for investigating the process of ecological differentiation at the finest of time scales, and over billions of years of microbial evolution.
by B. Jesse Shapiro.
Ph.D.
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Beinhoff, Andreas. "Developer usability testing : A real world example". Thesis, Uppsala universitet, Institutionen för informatik och media, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-132227.
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The iPhone has thanks to its multitouch interface, size and connectivity change the way we communicate. To fully utilize this technology we can involve users in the development process to help make highly usable software applications. One way to do this we somehow need to get the users to use our systems. What techniques are there to do this? And will they fit our product? Are there any way we can involve the users in the development process of an iPhone application, in this thesis I investigate if this can be accomplished by conducting usability tests with users on an iPhone application. The usability testing gives an insight into how the users work with and adapts to the users interface. The questionnaires given to the participants gave insight into how the users considered the usability and usefulness of the application. This data gave the development much needed data on the application to make it better and more usable. Since earlier research into user involvement have shown a strong connection to usable software and usability testing could be integrated successfully into the development by the single programmer, the conclusion can be drawn that single developer that incorporates usability testing into the development process as a form of user involvement makes more usable software. The usability was tested on an iPhone application built for an American online classified ads website.
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Bairaktaris, Dimitrios. "Adaptive pattern recognition in a real-world environment". Thesis, University of St Andrews, 1991. http://hdl.handle.net/10023/9261.
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This thesis introduces and explores the notion of a real-world environment with respect to adaptive pattern recognition and neural network systems. It then examines the individual properties of a real-world environment and proposes Continuous Adaptation, Persistence of information and Context-sensitive recognition to be the major design criteria a neural network system in a real-world environment should satisfy. Based on these criteria, it then assesses the performance of Hopfield networks and Associative Memory systems and identifies their operational limitations. This leads to the introduction of Randomized Internal Representations, a novel class of neural network systems which stores information in a fully distributed way yet is capable of encoding and utilizing context. It then assesses the performance of Competitive Learning and Adaptive Resonance Theory systems and again having identified their operational weakness, it describes the Dynamic Adaptation Scheme which satisfies all three design criteria for a real-world environment.
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Williams, Sean Daniel. "Theorizing a perspective on world wide web argumentation /". Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/9399.
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Naumann, Felix. "Quality-driven query answering for integrated information systems /". Berlin [u.a.] : Springer, 2002. http://www.loc.gov/catdir/enhancements/fy0817/2002023684-d.html.
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Wilkerson-Jerde, Michelle H., i Uri Wilensky. "DeltaTick: Applying Calculus to the Real World through Behavioral Modeling". Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-81136.
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Certainly one of the most powerful and important modeling languages of our time is the Calculus. But research consistently shows that students do not understand how the variables in calculus-based mathematical models relate to aspects of the systems that those models are supposed to represent. Because of this, students never access the true power of calculus: its suitability to model a wide variety of real-world systems across domains. In this paper, we describe the motivation and theoretical foundations for the DeltaTick and HotLink Replay applications, an effort to address these difficulties by a) enabling students to model a wide variety of systems in the world that change over time by defining the behaviors of that system, and b) making explicit how a system\'s behavior relates to the mathematical trends that behavior creates. These applications employ the visualization and codification of behavior rules within the NetLogo agent-based modeling environment (Wilensky, 1999), rather than mathematical symbols, as their primary building blocks. As such, they provide an alternative to traditional mathematical techniques for exploring and solving advanced modeling problems, as well as exploring the major underlying concepts of calculus.
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Nguyen, Thuy-Linh 1964. "An object-oriented data model for evolvable Web systems". Monash University, School of Computer Science and Software Engineering, 2000. http://arrow.monash.edu.au/hdl/1959.1/9008.
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Rosvall, Martin. "Information horizons in a complex world". Doctoral thesis, Umeå : Department of Physics, Umeå University, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-840.
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Bachvarov, Boris Lyobomirov. "Analysis of the financial accounting sties on the World Wide Web". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02Jun%5FBachvarov.pdf.
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Panthaki, Neville. "The Reichsmark & the ruble a study of two totalitarian systems and their economies in conflict /". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0027/MQ33502.pdf.
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Vibe-Rheymer, Karin. "Analysis of dynamical systems in real-World condi : application to heart rate /". Lausanne : EPFL, 1997. http://library.epfl.ch/theses/?nr=1727.
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Cheng, Zhenlan. "Link level performance of wireless multicarrier transmission systems under real-world constraints /". [S.l.] : [s.n.], 2005. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15954.
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Shewchuk, David. "World systems theory and military expenditures : a comparison of Sweden and Canada". Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=64110.
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Makatsela, K. C. T. "A systems approach to organisational change leading to world-class communications services". Master's thesis, University of Cape Town, 2001. http://hdl.handle.net/11427/8744.
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Bibliography: leaves 143-147.The author has researched and reported on the systems approach to effective management and organisation that lead to world-class communications service provision - Lesotho Telecommunications Corporation’s Satellite Earth Station is used as a case study. Changes to management and organisation systems were introduced in order to achieve the above. The report argues that change is inevitable and managers can only manage it and ensure that it happens smoothly. Interviews, questionnaires, group discussions, staff meetings, presentations and existing literature were used as valuable sources of information in this research study. Multiple perspectives and views from experts and industrialists in the field of telecommunications and management consultancy were incorporated in order to cover a wider scope of the economy and society. Data and information collected was analysed and discussed in order to establish need for change, promote change, design and implement systems intervention strategy. Both organisational learning and organisational development models were developed to enhance smooth transition. The research was carried out within the limitations and time constraints of this research study. Changes were proposed and implemented at the Satellite Earth Station Section/Department and significant improvements were realised. The results of this research can be used, with authority, by enterprises and organisations, both private and public, aiming at improving effectiveness of management and organisation within their work environment through meaningful change. The participating organisation would most definitely find this report worth it. Those wishing to pursue the research topic further and more globally can also use the results of this research study.
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Urquhart, Neil B. "Solving real-world routing problems using evolutionary algorithms and multi-agent-systems". Thesis, Edinburgh Napier University, 2003. http://researchrepository.napier.ac.uk/Output/2748.
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This thesis investigates the solving of routing problems using Evolutionary Algorithms (EAs). Routing problems are known to be hard and may possess complex search spaces. Evolutionary algorithms are potentially powerful tools for finding solutions within complex search spaces. The problem investigated is the routing of deliveries to households within an urban environment; the most common instance of this problem is that of daily postal deliveries. A representation known as Street Based Routing (SBR) is presented. This is a problem representation that makes use of the real world groupings of streets and houses. This representation is an indirect problem representation designed specifically for use with EAs. The SBR representation is incorporated within an EA and used to construct delivery routes around a variety of problem instances. The EA based system is compared against a Travelling Salesman Problem (TSP) solver, and the results are presented. The EA based system produces routes that are on average slightly longer than those produced by the TSP solver. Real world problems may often involve the construction of a network of delivery routes that are subject to multiple hard and soft constraints. A Multi Agent System (MAS) based framework for building delivery networks is presented that makes use of the SBR based EA presented earlier. Each agent within the system uses an EA to construct a single route. Agents may exchange work (via auctions or by directly negotiated exchanges) allowing the optimisation of their route. It is demonstrated that this approach has much potential and is capable of constructing delivery networks meeting set constraints, over a range of problem instances and constraint values.