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Dissertations / Theses on the topic 'Uncertainty (Information theory)'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 July 2024

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1

De, Aguinaga José Guillermo. "Uncertainty Assessment of Hydrogeological Models Based on Information Theory." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-71814.

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There is a great deal of uncertainty in hydrogeological modeling. Overparametrized models increase uncertainty since the information of the observations is distributed through all of the parameters. The present study proposes a new option to reduce this uncertainty. A way to achieve this goal is to select a model which provides good performance with as few calibrated parameters as possible (parsimonious model) and to calibrate it using many sources of information. Akaike’s Information Criterion (AIC), proposed by Hirotugu Akaike in 1973, is a statistic-probabilistic criterion based on the Info

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2

Dalvi, Nilesh. "Managing uncertainty using probabilistic databases /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/6920.

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3

Aleem, I. "Information, uncertainty and rural credit markets in Pakistan." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.482927.

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4

Zhang, Yanyang. "Second-order effects on uncertainty analysis calculations." Master's thesis, Mississippi State : Mississippi State University, 2002. http://library.msstate.edu/etd/show.asp?etd=etd-10292002-122359.

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5

Noronha, Alston Marian Lee Jejung. "Information theory approach to quantifying parameter uncertainty in groundwater modeling." Diss., UMK access, 2005.

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Thesis (M.S.)--School of Computing and Engineering. University of Missouri--Kansas City, 2005.<br>"A thesis in civil engineering." Typescript. Advisor: Jejung Lee. Vita. Title from "catalog record" of the print edition Description based on contents viewed March 12, 2007. Includes bibliographical references (leaves 96-100). Online version of the print edition.

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6

Adams, Carl. "Dealing with uncertainty within information systems development : applying prospect theory." Thesis, University of Southampton, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395995.

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7

Khiripet, Noppadon. "An architecture for intelligent time series prediction with causal information." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/13896.

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8

Lu, An. "Processing and management of uncertain information in vague databases /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CSED%202009%20LU.

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9

Windholz, Thomas. "Strategies for Handling Spatial Uncertainty due to Discretization." Fogler Library, University of Maine, 2001. http://www.library.umaine.edu/theses/pdf/Windholz.pdf.

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10

Cvijanovic, Zoran. "A computer laboratory for generalized information theory (COLGIT)." Diss., Online access via UMI:, 2007.

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Thesis (Ph. D.)--State University of New York at Binghamton, Department or Systems Science and Industrial Engineeering, Thomas J. Watson School of Engineering and Applied Science, 2007.<br>Includes bibliographical references.

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11

van, Welbergen Nikoleta [Verfasser], Christoph [Akademischer Betreuer] Kuzmics, and Frank [Akademischer Betreuer] Riedel. "Information uncertainty in auction theory / Nikoleta van Welbergen ; Christoph Kuzmics, Frank Riedel." Bielefeld : Universitätsbibliothek Bielefeld, 2016. http://d-nb.info/1122285787/34.

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12

Welbergen, Nikoleta van [Verfasser], Christoph [Akademischer Betreuer] Kuzmics, and Frank [Akademischer Betreuer] Riedel. "Information uncertainty in auction theory / Nikoleta van Welbergen ; Christoph Kuzmics, Frank Riedel." Bielefeld : Universitätsbibliothek Bielefeld, 2016. http://d-nb.info/1122285787/34.

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13

Gong, Jian, and 龔劍. "Managing uncertainty in schema matchings." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46076116.

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14

Haglind, Carl. "Evaluation and Implementation of Traceable Uncertainty for Threat Evaluation." Thesis, Uppsala universitet, Avdelningen för systemteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-228106.

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Threat evaluation is used in various applications to find threatening objects or situations and neutralize them before they cause any damage. To make the threat evaluation as user-friendly as possible, it is important to know where the uncertainties are. The method Traceable Uncertainty can make the threat evaluation process more transparent and hopefully easier to rely on. Traceable Uncertainty is used when different sources of information are combined to find support for the decision making process. The uncertainty of the current information is measured before and after the combination. If t

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15

Pryor, Ronald L. "Principles of nonspecificity." Diss., Online access via UMI:, 2007.

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Thesis (Ph. D.)--State University of New York at Binghamton, Thomas J. Watson School of Engineering and Applied Science, Department of Systems Science and Industrial Engineering, 2007.<br>Includes bibliographical references.

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16

Warren, Adam L. "Sequential decision-making under uncertainty /." *McMaster only, 2004.

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17

Lando, Jody Brauner. "Incorporating uncertainty into freshwater habitat restoration /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/5376.

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18

Lalmas, Mounia. "Theories of information and uncertainty for the modelling of information retrieval : an application of situation theory and Dempster-Shafer's theory of evidence." Thesis, University of Glasgow, 1996. http://theses.gla.ac.uk/8385/.

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Current information retrieval models only offer simplistic and specific representations of information. Therefore, there is a need for the development of a new formalism able to model information retrieval systems in a more generic manner. In 1986, Van Rijsbergen suggested that such formalisms can be both appropriately and powerfully defined within a logic. The resulting formalism should capture information as it appears in an information retrieval system, and also in any of its inherent forms. The aim of this thesis is to understand the nature of information in information retrieval, and to p

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19

Kistenmacher, Martin. "Reservoir system management under uncertainty." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/49012.

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Reservoir systems are subject to several uncertainties that are the result of imperfect knowledge about system behavior and inputs. A major source of uncertainty arises from the inability to predict future inflows. Fortunately, it is often possible to generate probabilistic forecasts of inflow volumes in the form of probability density functions or ensembles. These inflow forecasts can be coupled with stochastic management models to determine reservoir release policies and provide stakeholders with meaningful information of upcoming system responses such as reservoir levels, releases, flood da

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20

Wang, Liang, and 王亮. "Frequent itemsets mining on uncertain databases." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B4590215X.

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21

Froese, Thomas Michael. "Implementing Dempster-Shafer theory for inexact reasoning in expert systems." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28383.

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The work described in this thesis stems from the idea that expert systems should be able to accurately and appropriately handle uncertain information. The traditional approaches to dealing with uncertainty are discussed and are shown to contain many inadequacies. The Dempster-Shafer, or D-S, theory of evidence is proposed as an appealing theoretical basis for representing uncertain knowledge and for performing inexact reasoning in expert systems. The D-S theory is reviewed in some detail; including its approaches to representing concepts, to representing belief, to combining belief and to per

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22

Duncan, Scott Joseph. "Including severe uncertainty into environmentally benign life cycle design using information gap-decision theory." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22540.

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Thesis (Ph. D.)--Mechanical Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Bras, Bert; Committee Member: Allen, Janet; Committee Member: Chameau, Jean-Lou; Committee Member: McGinnis, Leon; Committee Member: Paredis, Chris.

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23

Salim, Farzad. "Approaches to access control under uncertainty." Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/58408/1/Farzad_Salim_Thesis.pdf.

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The ultimate goal of an access control system is to allocate each user the precise level of access they need to complete their job - no more and no less. This proves to be challenging in an organisational setting. On one hand employees need enough access to the organisation’s resources in order to perform their jobs and on the other hand more access will bring about an increasing risk of misuse - either intentionally, where an employee uses the access for personal benefit, or unintentionally, through carelessness or being socially engineered to give access to an adversary. This thesis inves

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24

Bhatt, Chinmay P. "Assessment of uncertainty in equivalent sand grain roughness methods." Birmingham, Ala. : University of Alabama at Birmingham, 2007. http://www.mhsl.uab.edu/dt/2007m/bhatt.pdf.

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25

Cheong, Tae Su. "Value of information and supply uncertainty in supply chains." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42725.

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This dissertation focuses on topics related to the value of real-time information and/or to supply uncertainties due to uncertain lead-times and yields in supply chains. The first two of these topics address issues associated with freight transportation, while the remaining two topics are concerned with inventory replenishment. We first assess the value of dynamic tour determination for the traveling salesman problem (TSP). Given a network with traffic dynamics that can be modeled as a Markov chain, we present a policy determination procedure that optimally builds a tour dynamically. We then e

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26

Herner, Alan Eugene. "Measuring Uncertainty of Protein Secondary Structure." Wright State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=wright1302305875.

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27

Shrestha, Govinda B. "Formulation and analysis of a probabilistic uncertainty evaluation technique." Diss., Virginia Tech, 1990. http://hdl.handle.net/10919/39846.

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28

Hendricks, Michael D. "Structuring a Wayfinder's Dynamic and Uncertain Environment." Fogler Library, University of Maine, 2004. http://www.library.umaine.edu/theses/pdf/HendricksMD2004.pdf.

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29

Chen, Xingyuan. "Investigating third-order polynomial normal transform and its applications to uncertainty and reliability analyses /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202002%20CHEN.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2002.<br>Includes bibliographical references (leaves 192-195). Also available in electronic version. Access restricted to campus users.

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30

Lian, Xiang. "Efficient query processing over uncertain data /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CSED%202009%20LIAN.

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31

Drougard, Nicolas. "Exploiting imprecise information sources in sequential decision making problems under uncertainty." Thesis, Toulouse, ISAE, 2015. http://www.theses.fr/2015ESAE0037/document.

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Les Processus Décisionnels de Markov Partiellement Observables (PDMPOs) permettent de modéliser facilement lesproblèmes probabilistes de décision séquentielle dans l'incertain. Lorsqu'il s'agit d'une mission robotique, lescaractéristiques du robot et de son environnement nécessaires à la définition de la mission constituent le système. Son étatn'est pas directement visible par l'agent (le robot). Résoudre un PDMPO revient donc à calculer une stratégie qui remplit lamission au mieux en moyenne, i.e. une fonction prescrivant les actions à exécuter selon l'information reçue par l'agent. Cetravail

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32

McCormick, David Jeremy. "Distributed uncertainty analysis techniques for conceptual launch vehicle design." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/12892.

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33

Xie, Xike, and 谢希科. "Evaluating nearest neighbor queries over uncertain databases." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B4784954X.

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Nearest Neighbor (NN in short) queries are important in emerging applications, such as wireless networks, location-based services, and data stream applications, where the data obtained are often imprecise. The imprecision or imperfection of the data sources is modeled by uncertain data in recent research works. Handling uncertainty is important because this issue affects the quality of query answers. Although queries on uncertain data are useful, evaluating the queries on them can be costly, in terms of I/O or computational efficiency. In this thesis, we study how to efficiently evalua

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34

Hu, Zhiji. "Statistical approach toward designing expert system." Virtual Press, 1988. http://liblink.bsu.edu/uhtbin/catkey/539812.

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Inference under uncertainty plays a crucial role in expert system and receives growing attention from artificial intelligence experts, statisticians, and psychologists. In searching for new satisfactory ways to model inference under uncertainty, it will be necessary to combine the efforts of researchers from different areas. It is expected that with deep insight into this crucial problem, it will not only have enormous impact on development of AI and expert system, but also bring classical areas like statistics into a new stage. This research paper gives a precise synopsis of present work in t

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35

Mantis, George C. "Quantification and propagation of disciplinary uncertainty via bayesian statistics." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/12136.

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36

Smith, Barbara S. "Uncertainty reasoning and representation: a comparison of several alternative approaches /." Online version of thesis, 1990. http://hdl.handle.net/1850/10580.

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37

Sui, Liqi. "Uncertainty management in parameter identification." Thesis, Compiègne, 2017. http://www.theses.fr/2017COMP2330/document.

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Afin d'obtenir des simulations plus prédictives et plus précises du comportement mécanique des structures, des modèles matériau de plus en plus complexes ont été développés. Aujourd'hui, la caractérisation des propriétés des matériaux est donc un objectif prioritaire. Elle exige des méthodes et des tests d'identification dédiés dans des conditions les plus proches possible des cas de service. Cette thèse vise à développer une méthodologie d'identification efficace pour trouver les paramètres des propriétés matériau, en tenant compte de toutes les informations disponibles. L'information utilisé

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38

Moore, Alana L. "Managing populations in the face of uncertainty : adaptive management, partial observability and the dynamic value of information /." Connect to thesis, 2008. http://repository.unimelb.edu.au/10187/3676.

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The work presented in this thesis falls naturally into two parts. The first part (Chapter 2), is concerned with the benefit of perturbing a population into an immediately undesirable state, in order to improve estimates of a static probability which may improve long-term management. We consider finding the optimal harvest policy for a theoretical harvested population when a key parameter is unknown. We employ an adaptive management framework to study when it is worth sacrificing short term rewards in order to increase long term profits.<br>Active adaptive management has been increasingly advoc

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39

Calanni, Fraccone Giorgio M. "Bayesian networks for uncertainty estimation in the response of dynamic structures." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24714.

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Thesis (Ph.D.)--Aerospace Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Dr. Vitali Volovoi; Committee Co-Chair: Dr. Massimo Ruzzene; Committee Member: Dr. Andrew Makeev; Committee Member: Dr. Dewey Hodges; Committee Member: Dr. Peter Cento

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40

Wu, Yuan. "The momentum premium under the influence of information uncertainty : evidence from the Chinese stock market." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/341447/.

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From this study, we find that the momentum premia are universally positive and statistically significant across 16 different momentum trading strategies in the Chinese Class A share market. By defining the time periods following UP and DOWN market states according to prior 12 or 24-month average Chinese Class A share market returns, we show that the momentum premia of different momentum strategies over time periods following UP market state eclipse those found over time periods following DOWN market state in the Chinese Class A share market for the whole sample period from January 1996 to Dece

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41

Sun, Liwen, and 孙理文. "Mining uncertain data with probabilistic guarantees." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45705392.

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42

Murphy, David. "Predicting Effects of Artificial Recharge using Groundwater Flow and Transport Models with First Order Uncertainty Analysis." Thesis, The University of Arizona, 1997. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_etd_hy0122_sip1_w.pdf&type=application/pdf.

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43

Arafat, Samer M. "Uncertainty modeling for classification and analysis of medical signals /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p3115520.

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44

Bicker, Marcelle M. "A toolkit for uncertainty reasoning and representation using fuzzy set theory in PROLOG expert systems /." Online version of thesis, 1987. http://hdl.handle.net/1850/10294.

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45

Ioannou, Georgios. "The Markov multi-phase transferable belief model : a data fusion theory for enhancing cyber situational awareness." Thesis, Brunel University, 2015. http://bura.brunel.ac.uk/handle/2438/13742.

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eXfiltration Advanced Persistent Threats (XAPTs) increasingly account for incidents concerned with critical information exfiltration from High Valued Targets (HVT's) by terrorists, cyber criminals or enemy states. Existing Cyber Defence frameworks and data fusion models do not adequately address (i) the multi-stage nature of XAPTs and (ii) the uncertainty and conflicting information associated with XAPTs. A new data fusion theory, called the Markov Multi-phase Transferable Belief Model (MM-TBM) is developed, for tracking and predicting XAPTs. MM-TBM expands the attack kill-chain model to attac

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46

Mangalpally, Sharat C. "Assessment of integrity of reasoning in large-scale decision systems application to public transit investment project evaluation /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 1.07Mb, 127 p, 2005. http://wwwlib.umi.com/dissertations/fullcit/1428262.

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47

Xiang, Gang. "Fast algorithms for computing statistics under interval uncertainty with applications to computer science and to electrical and computer engineering /." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2007. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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48

Kennedy, Joseph L. Fales Roger. "Force control of a hydraulic servo system." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6582.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on November 18, 2009). Thesis advisor: Dr. Roger Fales. Includes bibliographical references.

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49

Melin, Alexander M. "On direct adaptive control of a class of nonlinear scalar systems /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p1418051.

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50

McInerney, Robert E. "Decision making under uncertainty." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:a34e87ad-8330-42df-8ba6-d55f10529331.

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Operating and interacting in an environment requires the ability to manage uncertainty and to choose definite courses of action. In this thesis we look to Bayesian probability theory as the means to achieve the former, and find that through rigorous application of the rules it prescribes we can, in theory, solve problems of decision making under uncertainty. Unfortunately such methodology is intractable in realworld problems, and thus approximation of one form or another is inevitable. Many techniques make use of heuristic procedures for managing uncertainty. We note that such methods suffer u

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