Rozprawy doktorskie: „Fuzzy-set approach”

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Côté, Karl. "Risk analysis of contaminated sites : a Fuzzy set approach". Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23742.

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A computer programme has been developed to evaluate risks that contaminated sites might pose to human health. Pollutants present in soils and sediments can potentially migrate from source to receptors, via different pathways. In the programme, pathways are represented by transport models.
Humans can be affected by contaminant migration through land and water use. Health risks can arise from ingestion of and dermal contact with contaminated water and soil, as well as through inhalation of contaminated air. Quantitative estimates of risks are calculated for both carcinogenic and non-carcinogenic contaminants.
Soil and sediment systems are very heterogeneous and are characterized by uncertain parameters. Concepts of fuzzy set theory have been used in the programme to take uncertainty into account. Uncertain input parameters are represented by fuzzy numbers. An inference model using fuzzy logic has been constructed to reason about data in the decision making process.

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2

陳國評 i Kwok-ping Chan. "Fuzzy set theoretic approach to handwritten Chinese character recognition". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1989. http://hub.hku.hk/bib/B30425876.

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Abdel-Kader, Magdy G. "Evaluating investment decisions in advanced manufacturing systems : a fuzzy set theory approach". Thesis, University of the West of England, Bristol, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362552.

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Qin, Zengchang. "Learning with fuzzy labels : a random set approach towards intelligent data mining systems". Thesis, University of Bristol, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422575.

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Yeung, Fai Yip. "Developing a Partnering Performance Index (PPI) for construction projects : a fuzzy set theory approach". online access from Digital Dissertation Consortium, 2007. http://libweb.cityu.edu.hk/cgi-bin/er/db/ddcdiss.pl?3299884.

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Flores, Tavares Fernando. "Essays on Fuzzy Multidimensional Poverty and Vulnerabilities: Analyzes of Socioeconomic Deprivations and Inequalities in Brazil". Doctoral thesis, Università di Siena, 2022. http://hdl.handle.net/11365/1210273.

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This thesis aims to shed light on the complexity and multidimensionality of poverty and vulnerabilities in Brazil. In the first chapter, Gianni Betti and I explore deprivations associated with the capacity to prevent and recover from infection with COVID-19. We wrote this article during the first wave of the pandemic outbreak to show that multidimensionally poor people are also the most vulnerable in emergencies and expose the need for coordinated national action prioritizing the most exposed groups in Brazil. Using the Alkire-Foster method and a fuzzy set approach, we propose two pandemic-specific indexes to measure vulnerability in terms of the capacity to prevent infection with and to recover from the disease. The outcomes reveal structural deprivations in the country and considerable inequality among regions and ethnic groups. In the period studied, rank correlations confirm that the most vulnerable states were also among those with the highest pandemic-related deaths per million people. The article was published in World Development. In the second chapter, the focus is on gender differences in multidimensional poverty in Brazil. The chapter contributes to the literature on multidimensional poverty measurement by applying and proposing procedures to improve individual-level estimations considering the limitations of household surveys. I create two individual-based indexes with indicators that are key aspects in gender and feminist analyses. Applying a fuzzy approach and the Alkire-Foster method, I estimate multidimensional poverty and gender differences in three perspectives: intrahousehold, interhousehold, and intracouple. I also calculate inequality among the poor and intracouple gender gaps proposing fuzzy versions for these analyses. The results suggest that women are disadvantaged in dimensions that are crucial components of agency or degree of empowerment. In most specifications, individuals living in female-headed households are poorer than those living in male-headed households, but in female-headed households, women are in advantage compared to men, or at least the disparity decreases. In the third chapter, I concentrate on labor market vulnerability in Brazil. Here, vulnerability refers to the capacity of achieving full potential in work and career, finding and seizing employment opportunities, and having a decent job. The chapter aims to propose two labor market vulnerability indexes (LMVI) that include people inside and outside the labor market. Using a fuzzy set approach and comparing two years, I estimate vulnerability from two perspectives: individual and household. One of the innovations of the household-based measure is to understand if people that are vulnerable or outside the labor force (e.g., dependents) can have support from members of their household that are working and are not vulnerable. The outcomes reveal that the average degree of vulnerability was high and had a slow change between the years. Although education levels improved, precarity and other labor deprivations did not make progress in the period.

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Ottonelli, Jana?na. "Pobreza multidimensional na regi?o nordeste: uma aplica??o da Teoria dos Conjuntos Fuzzy (em 2010)". Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/14087.

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Made available in DSpace on 2014-12-17T14:34:45Z (GMT). No. of bitstreams: 1 JanainaO_DISSERT.pdf: 1740666 bytes, checksum: b7ce8fa758db532c2ba4cf361ed5d2a2 (MD5) Previous issue date: 2013-06-03
Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
Pobreza significa priva??o. A priva??o sofrida pelas pessoas pobres normalmente est? relacionada ao baixo n?vel de renda. Quando se trata da pobreza no Brasil, a Regi?o Nordeste se destaca, pois em 2010 o Plano Brasil Sem Mis?ria apontou a exist?ncia de 9,6 milh?es de extremamente pobres na regi?o, representando 59% do total no pa?s (BRASIL, 2011b). No entanto, a renda monet?ria n?o captura completamente as priva??es sofridas pelas pessoas. O conceito de pobreza tem passado por uma evolu??o no sentido de incluir dimens?es importantes sobre a vida das pessoas. Deixou de focar apenas a priva??o absoluta da abordagem unidimensional e passou a considerar a priva??o relativa, uma abordagem multidimensional. Este estudo fundamenta-se na Abordagem das Capacita??es de Sen (1981, 1985, 2000, 2001) que considera a pobreza como a priva??o sofrida pelas pessoas relacionada a diferentes aspectos tais como nutri??o, acesso aos servi?os b?sicos de educa??o, sa?de, saneamento b?sico e, tamb?m, de liberdade. Assim, o objetivo deste estudo ? investigar e mensurar a intensidade da pobreza multidimensional nos munic?pios da Regi?o Nordeste atrav?s do Censo Demogr?fico (IBGE, 2010). Para isso, utilizou-se da t?cnica da Teoria dos Conjuntos Fuzzy que permite o c?lculo de ?ndice relativo. A mensura??o da pobreza por meio do ?ndice fuzzy de pobreza (IFP) envolveu a escolha de 19 indicadores distribu?dos em quatro dimens?es (ou capacita??es): educa??o, sa?de, condi??es habitacionais e renda. Os resultados mostraram que existe maior pobreza na dimens?o renda. Entretanto, as dimens?es educa??o e sa?de tamb?m tiveram import?ncia no indicador de pobreza multidimensional. Alguns indicadores que merecem aten??o dos formuladores de pol?ticas p?blicas s?o o acesso ao ensino fundamental e ensino m?dio e o acesso aos servi?os de saneamento b?sico, coleta de lixo e rede de ?gua. Apesar da priva??o na dimens?o renda ser maior do que nas demais dimens?es, a supera??o da pobreza envolve a promo??o dos diferentes aspectos relacionados ? vida das pessoas. A Abordagem da Capacita??o mostra que pol?ticas de assist?ncia aos pobres precisam considerar as particularidades do local e h?bitos, de forma a verificar quais s?o as reais priva??es sofridas pelas pessoas. As pessoas que se encontram em situa??o de pobreza precisam ser incentivadas a superar a situa??o de mis?ria e pen?ria de forma a n?o serem eternamente privadas de liberdade e privadas de expandirem suas capacita??es

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Blake, Gatto Sharon Elizabeth. "MAnanA: A Generalized Heuristic Scoring Approach for Concept Map Analysis as Applied to Cybersecurity Education". ScholarWorks@UNO, 2018. https://scholarworks.uno.edu/td/2526.

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Concept Maps (CMs) are considered a well-known pedagogy technique in creating curriculum, educating, teaching, and learning. Determining comprehension of concepts result from comparisons of candidate CMs against a master CM, and evaluate "goodness". Past techniques for comparing CMs have revolved around the creation of a subjective rubric. We propose a novel CM scoring scheme called MAnanA based on a Fuzzy Similarity Scaling (FSS) score to vastly remove the subjectivity of the rubrics in the process of grading a CM. We evaluate our framework against a predefined rubric and test it with CM data collected from the Introduction to Computer Security course at the University of New Orleans (UNO), and found that the scores obtained via MAnanA captured the trend that we observed from the rubric via peak matching. Based on our evaluation, we believe that our framework can be used to objectify CM analysis.

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Okiye, Waais Idriss. "Analyse multidimensionnelle de la pauvreté : le cas de Djibouti". Thesis, Bourgogne Franche-Comté, 2017. http://www.theses.fr/2017UBFCB001/document.

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L'objet de cette thèse est de proposer et de développer les différentes mesures multidimensionnelles de la pauvreté. La multidimensionnalité de la pauvreté fait aujourd'hui consensus. Scientifiques, décideurs politiques et professionnels du développement s'accordent pour dire que la seule dimension monétaire (le manque de revenu) ne suffit pas à représenter la pauvreté. En se basant sur les travaux de Sen (Prix Nobel d'Economie) en particulier sur l'approche des capacités, nous proposons quatre mesures différentes de la pauvreté. La première est une mesure monétaire basée sur l'approche utilitaire ; la seconde est une mesure subjective basée sur les expériences des ménages ; la troisième est une mesure multidimensionnelle axiomatique et enfin la dernière est une mesure non axiomatique basée sur la théorie des ensembles flous. Elles sont toutes mises en oeuvre en utilisant les données d'enquêtes EDAM3-IS (Enquête Djiboutienne Auprès des Ménages 2012). Les résultats s'inscrivent dans un contexte de croissance économique que connait Djibouti. Cependant, toutes les mesures utilisées ont montré des grandes disparités régionales entre la capitale et les régions en termes d'infrastructure de base et de bien-être des ménages. Chacune de ses méthodes a fourni des résultats avec différentes interprétations des déterminants de la pauvreté. Cela ne signifie pas qu'il existe une méthode bien meilleure que l'autre, mais chaque approche, dans un contexte particulier, peut-être plus pertinente. Ainsi, l'identification des pauvres en appliquant les différentes mesures de la pauvreté nous a donné un profil différencié. Par conséquent, le décideur doit définir au préalable l'objectif poursuivi dans les politiques de lutte contre la pauvreté. Nous pouvons souligner que l'intégration d'une pondération subjective dans la mesure de la pauvreté est une de nos contributions au développement de mesures multidimensionnelles de la pauvreté
The aim of this thesis is to propose and develop the various multidimensional measures of poverty. There is a consensus on the multidimensional nature of poverty. Scientists, policy makers and development professionals agree that the monetary dimension (lack of income) is inadequate to represent poverty. On the basis of the work of Sen (Nobel Proze of Economics), particularly on the capability approach, we propose four different measures of poverty. The first one is a monetary measure based on the utilitarian approach ; the second is a subjective measure founded on household experience ; the third is a multidimensional axiomatic measure and the final one is a non-axiomatic measure based on the theory of fuzzy sets. They are implemented using survey data EDAM3-IS (Djiboutian Survey of Households 2012). The esults fall within the framework of economic growth in Djibouti. However, all the measures used have shown great disparities between the capital and the regions in terms of basic infrastructure and household welfare. Each method produced results with different interpretations of the determinants of poverty. This does not mean that there is one method being better than the other but rather each approach, in a particular context, may be more relevant. Thus, identifying the poor by applying the different measures of poverty gave us a clear-cut profile, which implies that the decision-maker must first set the aim in view in the implementation of anti-poverty policies. It can be emphasized that the inclusion of a subjective weighting in the process of measuring of poverty is one of our contributions towards the development of multidimensional measures of poverty

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Nunes, Celso Luís Pereira. "Poverty measurement : a theoretical contribution and application to Portugal 2007". Doctoral thesis, Instituto Superior de Economia e Gestão, 2012. http://hdl.handle.net/10400.5/10724.

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Doutoramento em Economia.
Neste trabalho apresenta-se uma história do pensamento económico na medição de pobreza - desde o que pode ser considerado o inicio da economia da pobreza ate a era de redescoberta da pobreza durante a década de 1960 - bern como uma revisão da literatura sobre as principais ferramentas de medição da pobreza apresentadas pela Ciência Económica. E ainda apresentado, no âmbito da abordagem multidimensional, uma proposta de um índice de medição de pobreza, inovadora quanto a ponderação dos diferentes atributos considerados como elementos de privação. 0 propósito do indice proposto e o de medir a pobreza na sua multidimensionalidade, sendo que cada dimensão de privação e ponderada no indice de acordo com a Hierarquia de Necessidades de Maslow. Esta forma de ponderação faz com que o indice proposto seja diferente dos ja existentes pelo facto de se incorporarem elementos de uma teoria psicológica consolidada na sua estrutura. Por fim, o indice apresentado e aplicado atraves de dados do European Union Statistics on Income and Living Conditions (EU-SILC) para Portugal em 2007 e comparado com dois outros metodos multidimensionais de medi9ao da pobreza.
This work presents a history of the economic thought on poverty measurement - from what can be considered the beginning of the Poverty Economics until the "Rediscovering Poverty" era during the 1960s - as well as a review of the literature on the main poverty measurement tools presented by the Economic Science. We also present, having the multidimensional approach as background, a proposal for a poverty measurement index, somehow innovative regarding the weighting of different attributes considered as elements of deprivation. The aim of the proposed index is to measure poverty as a multidimensional phenomenon, where each dimension of deprivation is weighted in the index according to the Maslow's Hierarchy of Needs. This way of weighting makes the proposed index different from the existing indices given that it incorporates elements of a consolidated psychological theory in its structure. Finally, the index is applied using the European Union Statistics on Income and Living Conditions (EU-SILC) microdata for Portugal in 2007, and compared with two other methods of measuring multidimensional poverty.

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Tran, Dat Tat, i n/a. "Fuzzy approaches to speech and peaker recognition". University of Canberra. Management & Technology, 2000. http://erl.canberra.edu.au./public/adt-AUC20061109.151916.

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Stastical pattern recognition is the most successful approach to automatic speech and speaker recognition (ASASR). Of all the statistical pattern recognition techniques, the hidden Markov model (HMM) is the most important. The Gaussian mixture model (GMM) and vector quantisation (VQ) are also effective techniques, especially for speaker recognition and in conjunction with HMMs. for speech recognition. However, the performance of these techniques degrades rapidly in the context of insufficient training data and in the presence of noise or distortion. Fuzzy approaches with their adjustable parameters can reduce such degradation. Fuzzy set theory is one of the most, successful approaches in pattern recognition, where, based on the idea of a fuzzy membership function, fuzzy C'-means (FCM) clustering and noise clustering (NC) are the most, important techniques. To establish fuzzy approaches to ASASR, the following basic problems are solved. First, a time-dependent fuzzy membership function is defined for the HMM. Second, a general distance is proposed to obtain a relationship between modelling and clustering techniques. Third, fuzzy entropy (FE) clustering is proposed to relate fuzzy models to statistical models. Finally, fuzzy membership functions are proposed as discriminant functions in decison making. The following models are proposed: 1) the FE-HMM. NC-FE-HMM. FE-GMM. NC-FEGMM. FE-VQ and NC-FE-VQ in the FE approach. 2) the FCM-HMM. NC-FCM-HMM. FCM-GMM and NC-FCM-GMM in the FCM approach, and 3) the hard HMM and GMM as the special models of both FE and FCM approaches. Finally, a fuzzy approach to speaker verification and a further extension using possibility theory are also proposed. The evaluation experiments performed on the TI46, ANDOSL and YOHO corpora showbetter results for all of the proposed techniques in comparison with the non-fuzzy baseline techniques.

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Chen, Qinghong. "Comparing Probabilistic and Fuzzy Set Approaches for Designing in the Presence of Uncertainty". Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/28946.

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Probabilistic models and fuzzy set models describe different aspects of uncertainty. Probabilistic models primarily describe random variability in parameters. In engineering system safety, examples are variability in material properties, geometrical dimensions, or wind loads. In contrast, fuzzy set models of uncertainty primarily describe vagueness, such as vagueness in the definition of safety. When there is only limited information about variability, it is possible to use probabilistic models by making suitable assumptions on the statistics of the variability. However, it has been repeatedly shown that this can entail serious errors. Fuzzy set models, which require little data, appear to be well suited to use with designing for uncertainty, when little is known about the uncertainty. Several studies have compared fuzzy set and probabilistic methods in analysis of safety of systems under uncertainty. However, no study has compared the two approaches systematically as a function of the amount of available information. Such a comparison, in the context of design against failure, is the objective of this dissertation. First, the theoretical foundations of probability and possibility theories are compared. We show that a major difference between probability and possibility is in the axioms about the union of events. Because of this difference, probability and possibility calculi are fundamentally different and one cannot simulate possibility calculus using probabilistic models. We also show that possibility-based methods tend to be more conservative than probability-based methods in systems that fail only if many unfavorable events occur simultaneously. Based on these theoretical observations, two design problems are formulated to demonstrate the strength and weakness of probabilistic and fuzzy set methods. We consider the design of tuned damper system and the design and construction of domino stacks. These problems contain narrow failure zones in their uncertain variables and are tailored to demonstrate the pitfalls of probabilistic methods when little information is available for uncertain variables. Using these design problems we demonstrate that probabilistic methods are better than possibility-based methods if sufficient information is available. Just as importantly, we show possibility-based methods can be better if little information is available. Our conclusion is that when there is little information available about uncertainties, a hybrid method should be used to ensure a safe design.
Ph. D.

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13

Brassard, Serge. "Méthodologie et modélisation floues des connaissances dans l'activité de conception en électrotechnique : application à la réalisation d'un système expert d'aide à la conception de l'appareillage électrique". Grenoble INPG, 1989. http://www.theses.fr/1989INPG0093.

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La conception de l'appareillage électrique relève dune méthodologie généralement fort complexe. Les problèmes posés par la conception de l'appareillage électrique sont analysés et montrent l'inefficacité des méthodes mathématiques. Une approche ensembliste floue est exposée et permet de modéliser l'aspect heuristique du problème ainsi que les aspects scientifiques et industriels de la conception. Un système expert d'aide à la conception des disjoncteurs à arc tournant a été réalisé. Les résultats obtenus sont commentés et montrent l'intérêt d'une telle approche

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Almabruk, Bleblou Omalkhear Salem. "Some new lattice valued algebraic structures with comparative analysis of various approaches". Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2017. https://www.cris.uns.ac.rs/record.jsf?recordId=105400&source=NDLTD&language=en.

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In this work a comparative analysis of several approaches to fuzzy algebraic structures and comparison of previous approaches to the recent one developed at University of Novi Sad has been done. Special attention is paid to reducts and expansions of algebraic structures in fuzzy settings. Besides mentioning all the relevant algebras and properties developed in this setting, particular new algebras and properties are developed and investigated. Some new structures, in particular Omega Boolean algebras, Omega Boolean lattices and Omega Boolean rings are developed in the framework of omega structures. Equivalences among these structures are elaborated in details. Transfers from Omega groupoids to Omega groups and back are demonstrated. Moreover, normal subgroups are introduced in a particular way. Their connections to congruences are elaborated in this settings. Subgroups, congruences and normal subgroups are investigated for Ω-groups. These are latticevalued algebraic structures, defined on crisp algebras which are not necessarily groups, and in which the classical equality is replaced by a lattice-valued one. A normal Ω-subgroup is defined as a particular class in an Ω-congruence. Our main result is that the quotient groups over cuts of a normal Ω- subgroup of an Ω-group G, are classical normal subgroups of the corresponding quotient groups over G. We also describe the minimal normal Ω-subgroup of an Ω-group, and some other constructions related to Ω-valued congruences.Further results that are obtained are theorems that connect various approaches of fuzzy algebraic structures. A special notion of a generalized lattice valued Boolean algebra is introduced. The universe of this structure is an algebra with two binary, an unary and two nullary operations (as usual), but which is not a crisp Boolean algebra in general. A main element in our approach is a fuzzy quivalence relation such that the Boolean algebras identities are approximately satisfied related to the considered fuzzy equivalence. Main properties of the new introduced notions are proved, and a connection with the notion of a structure of a generalized fuzzy lattice is provided.
Ovaj rad bavi se komparativnom analizom različitih pristupa rasplinutim (fazi) algebarskim strukturama i odnosom tih struktura sa odgovarajućim klasičnim algebrama. Posebna pažnja posvećena je poredenju postojećih pristupa ovom problemu sa novim tehnikama i pojmovima nedavno razvijenim na Univerzitetu u Novom Sadu. U okviru ove analize, proučavana su i proširenja kao i redukti algebarskih struktura u kontekstu rasplinutih algebri. Brojne važne konkretne algebarske strukture istraživane su u ovom kontekstu, a neke nove uvedene su i ispitane. Bavili smo se detaljnim istrazivanjima Ω-grupa, sa stanovista kongruencija, normalnih podgrupa i veze sa klasicnim grupama. Nove strukture koje su u radu uvedene u posebnom delu, istrazene su sa aspekta svojstava i medusobne ekvivalentnosti. To su Ω-Bulove algebre, kao i odgo-varajuce mreže i Bulovi prsteni. Uspostavljena je uzajamna ekvivalentnost tih struktura analogno odnosima u klasičnoj algebri. U osnovi naše konstrukcije su mrežno vrednosne algebarske strukture denisane na klasičnim algebrama koje ne zadovoljavaju nužno identitete ispunjene na odgovarajucim klasičnim strukturama (Bulove algebre, prsteni, grupe itd.), već su to samo algebre istog tipa. Klasična jednakost zamenjena je posebnom kompatibilnom rasplinutom (mrežno-vrednosnom) relacijom ekvivalencije. Na navedeni nacin i u cilju koji je u osnovi teze (poredenja sa postojecim pristupima u ovoj naucnoj oblasti) proucavane su (vec denisane) Ω-grupe. U nasim istraživanju uvedene su odgovarajuće normalne podgrupe. Uspostavljena je i istražena njihova veza sa Ω-kongruencijama. Normalna podgrupa Ω-grupe definisana je kao posebna klasa Ω-kongruencije. Jedan od rezultata u ovom delu je da su količničke grupe definisane pomocu nivoa Ω-jednakosti klasične normalne podgrupe odgovarajućih količničkih podgrupa polazne -grupe. I u ovom slučaju osnovna struktura na kojoj je denisana Ω-grupa je grupoid, ne nužno grupa. Opisane su osobine najmanje normalne podgrupe u terminima Ω-kongruencija, a date su i neke konstrukcije Ω-kongruencija.Rezultati koji su izloženi u nastavku povezuju različite pristupe nekim mrežno- vrednosnim strukturama. Ω-Bulova algebra je uvedena na strukturi sa dve binarne, unarnom i dve nularne operacije, ali za koju se ne zahteva ispunjenost klasičnih aksioma. Identiteti za Bulove algebre važe kao mrežno-teoretske formule u odnosu na mrežno-vrednosnu jednakost. Klasicne Bulove algebre ih zadovoljavaju, ali obratno ne vazi: iz tih formula ne slede standardne aksiome za Bulove algebre. Na analogan nacin uveden je i Ω-Bulov prsten. Glavna svojstva ovih struktura su opisana. Osnovna osobina je da se klasične Bulove algebre odnosno Bulovi prsteni javljaju kao količničke strukture na nivoima Ω -jednakosti. Veza ove strukture sa Ω-Bulovom mrežom je pokazana.Kao ilustracija ovih istraživanja, u radu je navedeno više primera.

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Berrah, Lamia. "Une approche d'évaluation de la performance industrielle : modèle d'indicateurs et techniques floues pour un pilotage réactif". Grenoble INPG, 1997. http://www.theses.fr/1997INPG0099.

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Le travail présenté dans cette thèse s'inscrit dans le cadre de l'évaluation de la performance et du pilotage des processus manufacturiers au moyen d'indicateurs. Un modèle pour l'indicateur est proposé, dont le fondement est l'expression d'une performance, à partir de la comparaison de l'objectif assigné et de la réalité mesurée. Le formalisme retenu est celui de la théorie des sous-ensembles flous, qui permet d'élargir le traitement à toute sorte de donnée ou contrainte - quantitative ou qualitative, précise ou imprécise, flexible ou catégorique - typique du contexte industriel. Par ailleurs, l'exploitation de l'indicateur pour le pilotage est vue à travers la mise en place d'un système d'indicateurs, en cohérence avec les objectifs ainsi que les variables d'action du système analysé. Le principe conducteur de la procédure présentée est la nécessité d'un déploiement de la stratégie et des objectifs globaux de l'entreprise sur ses processus, ce qui garantit d'une part une vision globale et décloisonnée, d'autre part une traçabilité de la performance

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Testemale, Claudette. "Une approche pour la gestion de l'imprecision et de l'incertitude dans les systemes d'information". Toulouse 3, 1986. http://www.theses.fr/1986TOU30211.

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Un systeme d'interrogation d'une base de donnees relationnel le comportement des informations floues autorisant des requetes elles memes vagues a ete developpe et implemente. Une application en informatique documentaire a ete proposee: la pertinence d'un mot cle par rapport a un document est estimee par degre de possibilite et par degre de necessite de l'apparition de ce mot cle dans une description correcte du document. La methodologie developpee a en outre permis de traiter differentes questions liees a la presence d'informations imprecises ou incompletes dans une base de donnees

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Evsukoff, Alexandre Gonçalves. "Le raisonnement approché pour la surveillance de procédés". Grenoble INPG, 1998. http://www.theses.fr/1998INPG0133.

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Nous avons développé un certain nombre d'outils fondés sur le raisonnement approché pour la conception de systèmes coopératifs d'aide à la surveillance. Le raisonnement approché est la clef de la coopération homme-machine dans ce mémoire ; il permet la présentation des résultats des procédures algorithmiques avec une sémantique très accessible à l'homme. L'approche symbolique des descriptions floues, utilisé pour la représentation des connaissances, permet l'interprétation linguistique de toutes les étapes du raisonnement. La mise en oeuvre des algorithmes sous la forme d'équations matricielles s'est avérée très efficace du point de vue des calculs mais aussi très élégante pour la présentation. Les ensembles flous sont étudiés pour la prise en compte des imprécisions qui affectent la certitude de la décision dans l'appréciation de concepts vagues tels que l'état normal et l'état en alarme. La notion de causalité est très liée au diagnostic et une grande partie du travail a été dédiée à l'étude des relations de cause à effet. Nous avons utilisé un modèle dynamique du fonctionnement normal du procédé où la causalité est explicitée sous la forme d'un graphe causal. Ce modèle causal permet la localisation de défauts et l'explication de leur propagation au travers du procédé. La causalité a aussi été abordée d'un point de vue abductif ; le diagnostic est alors vu comme un problème de reconnaissance de formes. Diverses démarches de synthèse du système de diagnostic ont été étudiées ; par apprentissage de bases de règles et aussi par réseaux de neurones. Finalement, nous avons proposé un concept innovant d'affichage des résultats du raisonnement approché sous la forme d'un dégradé de couleurs qui évolue dans le temps. Un prototype de système d'aide à la supervision pour un procédé de retraitement de combustibles nucléaires a été développé pour mettre en valeur les diverses réflexions abordées dans ce travail.

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18

Sung, Min Ju, i 宋敏如. "A Fuzzy Set Approach for R&D Project Scheduling". Thesis, 1998. http://ndltd.ncl.edu.tw/handle/05644990701074920561.

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碩士
逢甲大學
工業工程研究所
86
Due to the decreased product life cycle and increased new product development,enterprise must reduce the product development time in order topush a new product to the market as soon as possible. It''s important to plan and schedule the product development process efficiently to reduce theproduct development time and cost. However, it''s difficult to predict the duration of each activityaccurately, because most R&D projects are generally unique in nature. Traditional project management tools, such as PERT and CPM, are not suitable to be used in this situation.The objective of the research is to develop a methodology to schedule R&D projects with uncertain temporal information. Fuzzy set theory is used to represent the uncertain temporal information and the research problem is modeled with the Constraint Satisfaction Problem (CSP). A fuzzy constraintsatisfaction heuristic is developed to resolve the violated resource capacity constraints. Although the performance of the developed scheduling heuristic is not fully studied, the proposed methodology is able to allow project manager to make resource allocation decisions under the uncertain product development environment. The future research will include the computational study of the current developed heuristic and discuss possible ways to decision support for the multiple projects with uncertain temporal information.

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19

GUO, HAN-JING, i 郭寒菁. "Distribution system service restoration and capacitor dispatch using fuzzy set approach". Thesis, 1993. http://ndltd.ncl.edu.tw/handle/49878585096867512112.

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20

Guilherme, Ricardo Jorge Pratas. "A coalgebraic approach to fuzzy automata". Master's thesis, 2016. http://hdl.handle.net/10362/18452.

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In this thesis, we make a coalgebraic description of fuzzy automata allowing their integration in much general context. Thus, results obtained indivudually to fuzzy automata end up to be consequence of their coalgebraic description. In particular, a coalgebraic definition of the fuzzy language recognized by a fuzzy automaton is obtained. And, by defining a monad for fuzzy sets, a functor that describes a determinization process via a generalization of the powerset construction is obtained.

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21

Peng, Sin-Cih, i 彭心慈. "R&D Portfolio Selection and Scheduling using a Fuzzy Set Approach". Thesis, 2005. http://ndltd.ncl.edu.tw/handle/35065253721606562412.

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碩士
逢甲大學
工業工程與系統管理學研究所
93
With increasing competition and globalization, enterprises must improve their R&D portfolio decisions to maintain their competitive advantages. However, making R&D decisions is difficult, because it has to consider several complex issues: strategic balance, limited resources, complex resource interaction, project risk, etc. In addition, due to long lead times of R&D and market and technology dynamics, the collected data for portfolio management has been less reliable or even unavailable and it makes R&D portfolio decision become more difficult. The objective of this thesis is to develop an R&D portfolio selection model that can assist decision makers in choosing a suitable R&D portfolio to hedge against the R&D uncertainty. Fuzzy set theory is used to model the imprecise and uncertain information. Qualitative possibility theory is used to determine the satisfaction degree of each fuzzy constraint that involves both uncertain and flexible parameters at the same time from the risk-averse viewpoint. Yager t-norm aggregation operator is used to calculate the satisfaction degree of a candidate portfolio. Genetic algorithm approach is applied to determine the optimal R&D portfolio and schedule that maximizes the portfolio value with acceptable risk. Finally, an illustrative example is used to show the concept developed.

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22

Chiu, Kuo-Kuang, i 邱國光. "Choice of Technological Acquisition Mode in TFT-LCD Industry：A Fuzzy Set Theory Approach". Thesis, 2000. http://ndltd.ncl.edu.tw/handle/22126309579273292142.

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碩士
銘傳大學
國際企業管理研究所
88
Under rapid technological change, short product life cycle and intensive international competition, how the firms acquiring technology to establish core competency for sustaining competitive advantage become more important than before. The purpose of this paper is to apply a fuzzy multi-criteria decision making method and analytical hierarchical process for evaluating technological acquisition mode under fuzzy environment. First, we collect factors that affect technological acquisition mode. Second, we integrate specialists’ opinions to identify critical factors in order to establish hierarchy structure. Then, an algorithm for evaluating technological acquisition mode is proposed. The algorithm is based on the concepts of triangular fuzzy number and linguistic variable to assess the preference ratings of linguistic variable, ‘importance’ and ‘fitness’. The subjects can employ an assumed rating set to show the individual perception of the linguistic variables. Finally, we use the Chang and Chen’s ranking method to rank the final scores of technological acquisition mode.

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23

Ding, Yi. "A new fuzzy set approach to the tolerance analysis and parameter design problems". 2002. http://www.lib.ncsu.edu/theses/available/etd-06052002-235331/unrestricted/etd.pdf.

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24

Chang, Yi-Hsin, i 張一心. "Empirical Bayesian and Fuzzy Set Approach for Disease Screening with Interval Scale Variable". Thesis, 2002. http://ndltd.ncl.edu.tw/handle/23369378499659059213.

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碩士
國立臺灣大學
流行病學研究所
90
The disease screening with interval scale variable is usually faced with the problem of selecting cutoff point. The traditional statistical analysis gives rise to several concerns, including individual heterogeneity, the neglect of individual preference with respect to sensitivity and specificity, and of integrating prior experience. To tackle these problems, a series of novel statistical method are proposed, including univariate and multivariate Bayesian analysis, the development of fuzzy index, and the formulation of fuzzy utility index. The logic in this thesis starts from univariate empirical Bayesian approach. To reduce heterogeneity, multivariate Bayesian analysis and fuzzy set approach using logit membership function are used to raise the posterior probability and reduce the degree of fuzziness associated with false negative cases and false positive cases. The fuzzy utility index is also derived on the basis of receiving operating curve (ROC) analysis. The membership function with logistic regression model is also integrated to capture the fuzziness of false positive cases. These methods were successfully applied to screening for cardiovascular disease and cerebrovascular disease with cholesterol. These results provide an important reference for setting up screening policy determined by posterior odds or fuzzy utility ratio associated with false negative cases and false positive cases.

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25

Chia-Yi, Chien, i 簡嘉毅. "An Improved Cross-Entropy Approach for Pattern Recognition Based on Intuitionistic Fuzzy Set". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/98868305678012283391.

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碩士
國防大學管理學院
運籌管理學系
97
The thesis addresses the issue of information-theoretic discrimination measures for intuitionistic fuzzy sets (IFSs). Although many measures of distance, similarity, dissimilarity, and correlation between IFSs have been proposed, there is no reference regarding information-driven measures used for comparison between sets. In this work, we introduce the concepts of discrimination information and cross-entropy in the intuitionistic fuzzy sets and improve non-probabilistic entropy proposed by Vlachos & Sergiadis (2007) for IFSs. Based on this entropy measure, we add information of hesitation and reveal an intuitive and mathematical connection between the notions of entropy for IFSs in terms of fuzziness and intuitionism. Finally, we demonstrate the applications of the proposed discrimination information measure for pattern recognition, medical diagnosis, and bacteria detection.

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26

Wei-Chun, Hsu, i 徐維駿. "A Maximizing Set and Minimizing Set Based Fuzzy MCDM Approach for the Evaluation and Selection of the Distribution Centers". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/51098921054202662578.

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碩士
南台科技大學
工業管理研究所
97
Recently consuming patterns and marketing channels have changed. Many enterprises develop distribution centers to upgrade distribution efficiency and operation performance in order to fulfill the diverse demands of consumer. The determination of the location of a distribution center has become a very important issue because it influences the operation cost, performance as well as competitiveness of an enterprise. Many criteria must be considered when evaluating the locations for a distribution center. Some of these criteria are quantitative such as investment cost; some are qualitative such as closeness to market. Furthermore, criteria may have different importance for different decision makers. Therefore, the evaluation for the locations of a distribution center can be regarded as a fuzzy multiple criteria decision making (fuzzy MCDM) problem. The main purpose of this research is to develop a fuzzy MCDM model for the evaluation of the locations of a distribution center. In the proposed model, quantitative and qualitative criteria as well as the different importance weights of all the criteria are considered. First, a trade-off concept is applied to aggregation procedure of the fuzzy average weighted ratings in order to develop the membership function for the final fuzzy evaluation values for all the alternatives. Second, the Chen’s maximizing set and minimizing set is then used to obtain all the defuzzification values. The ranking of the alternatives can be determined based on the obtained total utilities. Application of the proposed approach is convenient and efficient because formulae of ranking procedure can be clearly developed through the combination of the Chen’s maximizing set and minimizing set and the proposed fuzzy MCDM model. Finally, a numerical example demonstrates the feasibility of the proposed model.

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27

Yazdi, M., i Sohag Kabir. "A fuzzy Bayesian network approach for risk analysis in process industries". 2017. http://hdl.handle.net/10454/17984.

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Yes
Fault tree analysis is a widely used method of risk assessment in process industries. However, the classical fault tree approach has its own limitations such as the inability to deal with uncertain failure data and to consider statistical dependence among the failure events. In this paper, we propose a comprehensive framework for the risk assessment in process industries under the conditions of uncertainty and statistical dependency of events. The proposed approach makes the use of expert knowledge and fuzzy set theory for handling the uncertainty in the failure data and employs the Bayesian network modeling for capturing dependency among the events and for a robust probabilistic reasoning in the conditions of uncertainty. The effectiveness of the approach was demonstrated by performing risk assessment in an ethylene transportation line unit in an ethylene oxide (EO) production plant.

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28

Im, Paul Poh Teng. "An enhanced progressive fuzzy clustering approach to pattern recognition". Thesis, 1997. https://vuir.vu.edu.au/15324/.

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This thesis applies an enhanced progressive clustering approach, involving fuzzy clustering algorithms and fuzzy neural networks, to solve some practical problems of pattern recognition. A new fuzzy clustering framework, referred to as Cluster Prototype Centring by Membership (CPCM), has been developed. A Possibilistic Fuzzy c-Means algorithm(PFCM), which is also new, has been formulated to investigate properties of fuzzy clustering. PFCM extends the useability of the Fuzzy c-Means (FCM) algorithm by generalisation of the membership function.

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29

Banisakher, Mubarak. "A Human-Centric Approach to Data Fusion in Post-Disaster Managment: The Development of a Fuzzy Set Theory Based Model". Doctoral diss., 2014. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/6055.

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It is critical to provide an efficient and accurate information system in the post-disaster phase for individuals' in order to access and obtain the necessary resources in a timely manner; but current map based post-disaster management systems provide all emergency resource lists without filtering them which usually leads to high levels of energy consumed in calculation. Also an effective post-disaster management system (PDMS) will result in distribution of all emergency resources such as, hospital, storage and transportation much more reasonably and be more beneficial to the individuals in the post disaster period. In this Dissertation, firstly, semi-supervised learning (SSL) based graph systems was constructed for PDMS. A Graph-based PDMS' resource map was converted to a directed graph that presented by adjacent matrix and then the decision information will be conducted from the PDMS by two ways, one is clustering operation, and another is graph-based semi-supervised optimization process. In this study, PDMS was applied for emergency resource distribution in post-disaster (responses phase), a path optimization algorithm based ant colony optimization (ACO) was used for minimizing the cost in post-disaster, simulation results show the effectiveness of the proposed methodology. This analysis was done by comparing it with clustering based algorithms under improvement ACO of tour improvement algorithm (TIA) and Min-Max Ant System (MMAS) and the results also show that the SSL based graph will be more effective for calculating the optimization path in PDMS. This research improved the map by combining the disaster map with the initial GIS based map which located the target area considering the influence of disaster. First, all initial map and disaster map will be under Gaussian transformation while we acquired the histogram of all map pictures. And then all pictures will be under discrete wavelet transform (DWT), a Gaussian fusion algorithm was applied in the DWT pictures. Second, inverse DWT (iDWT) was applied to generate a new map for a post-disaster management system. Finally, simulation works were proposed and the results showed the effectiveness of the proposed method by comparing it to other fusion algorithms, such as mean-mean fusion and max-UD fusion through the evaluation indices including entropy, spatial frequency (SF) and image quality index (IQI). Fuzzy set model were proposed to improve the presentation capacity of nodes in this GIS based PDMS.
Ph.D.
Doctorate
Industrial Engineering and Management Systems
Engineering and Computer Science
Industrial Engineering

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30

Hsu, Hua-Chi, i 徐華騏. "Stream flood forecasting using a soft-computing approach (neural networks and fuzzy set theory)--A case study of Wu-Tu basin". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/93037991270334908944.

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碩士
清雲科技大學
土木與防災研究所
96
The weather in Taiwan is high precipitation, and the heavy rainfall is generally in the typhoon season. Therefore, how to forecast stream flow is a worthy research subject for hydraulic engineers to avoid damages by typhoon. In this study, a flow-trend index based on the fuzzy set theory is developed for neural network models to systematically establish the relationship between the rainfall history and stream flow. The precipitation records of Wu-Tu including 18 typhoon events from 1973 to 2001 are used to train and test the stream flow forecasting model. The computing results indicate that the neural network using the flow-trend index is effective in the stream flow predictions.

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31

Shu, Hua-Chi, i 徐華騏. "Stream flood forecasting using a soft-computing approach (neural networks and fuzzy set theory)--A case study of Wu-Tu basin". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/08429472489760610812.

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碩士
清雲科技大學
空間資訊與防災科技研究所
96
The weather in Taiwan is high precipitation, and the heavy rainfall is generally in the typhoon season. Therefore, how to forecast stream flow is a worthy research subject for hydraulic engineers to avoid damages by typhoon. In this study, a flow-trend index based on the fuzzy set theory is developed for neural network models to systematically establish the relationship between the rainfall history and stream flow. The precipitation records of Wu-Tu including 18 typhoon events from 1973 to 2001 are used to train and test the stream flow forecasting model. The computing results indicate that the neural network using the flow-trend index is effective in the stream flow predictions.

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32

Pang, Chen-Chen, i 龐珍珍. "A study on the pricing strategy selection of digital content service of Taiwan third generation mobile phone: A fuzzy set theory approach". Thesis, 2006. http://ndltd.ncl.edu.tw/handle/2pyuph.

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碩士
銘傳大學
傳播管理研究所碩士班
94
The main purpose of this paper is to provide a strategic assessment model for optimum pricing method of digital content services of third generation mobile phone in Taiwan under fuzzy environment. The fundamental concepts we have adopted include the pairwise comparison, fuzzy Delphi method, fuzzy set theory and multi-criteria decision-making method. With the literature review and the investigations of administers who work for digital content services of third generation mobile phone in Taiwan, we construct the hierarchical structure for evaluating the optimum pricing method. The fuzzy Delphi method is integrated with the analytic hierarchy process method to form a set of pooled weights of the criteria. The concepts of triangular fuzzy number and linguistic variable are used to assess the preference ratings of linguistic variable, “importance” and “appropriateness”. Through the hierarchy integration, we obtain the final scores of strategies. Then we use a revised Chang and Chen’s ranking method to rank the final scores for strategy selection of optimum pricing of digital content services of Taiwan third generation mobile phone.

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33

"應用模糊集合方法處理中國之柯本氏氣候分類 =: A fuzzy set approach to Koppen's climatic classification in China". 1986. http://library.cuhk.edu.hk/record=b5887610.

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鄧國章.
Thesis (M.A.)--香港中文大學硏究院地理學部.
Includes bibliographical references (leaves 215-228).
Deng Guozhang.
Thesis (M.A.)--Xianggang Zhong wen da xue yan jiu yuan di li xue bu.
Chapter 第一章 --- 導論 --- p.1
Chapter 1.1 --- 研究目的 --- p.1
Chapter 1.2 --- 研究意義 --- p.7
Chapter 1.2.1 --- 方法學上的意義 --- p.7
Chapter 1.2.2 --- 地理學上的意義 --- p.8
Chapter 1.2.3 --- 應用上的意義 --- p.9
Chapter 1.3 --- 研究範圍 --- p.10
Chapter 1.4 --- 論文結構概述 --- p.12
Chapter 第二章 --- 文獻簡讀 --- p.15
Chapter 2.1 --- 分類與區劃的意義 --- p.15
Chapter 2.1.1 --- 分類與區劃 --- p.15
Chapter 2.1.2 --- 區域的類型 --- p.18
Chapter 2.1.3 --- 區劃的方法　 --- p.23
Chapter 2.2 --- 氣候分類 --- p.27
Chapter 2.2.1 --- 氣候分類的目的及意義　　 --- p.27
Chapter 2.2.2 --- 氣候分類的類型及方法 --- p.29
Chapter 2.2.3 --- 柯本氏氣候分類法 --- p.31
Chapter 2.3 --- 中國氣候區劃 --- p.41
Chapter 2.3.1 --- 中國氣候區劃歷史概況 --- p.41
Chapter 2.3.2 --- 應用柯本氏氣候分類法於中國氣候區劃的經驗 --- p.44
Chapter 2.4 --- 糢糊集合論於分類及區畫間題上的應用 --- p.47
Chapter 2.4.1 --- 糢糊集合論於分類及區劃上的應用 --- p.47
Chapter 2.4.2 --- 糢糊集合論於氣候區劃的應用 --- p.50
Chapter 第三章 --- 研究方法 --- p.53
Chapter 3.1 --- 應用模糊集合論於氣候分類之理論基璴　 --- p.53
Chapter 3.1.1 --- 集合與區域 --- p.53
Chapter 3.1.2 --- 模糊集合的基本概念及運算 --- p.54
Chapter 3.2 --- 氣候區的釐訂及區域界綫的劃定方法 --- p.68
Chapter 3.2.1 --- 氣候區的描述 --- p.68
Chapter 3.2.2 --- 氣候區的重疊與分割 --- p.75
Chapter 3.3 --- 數據資料處理方法 --- p.80
Chapter 3.3.1 --- 數據搜集方法 --- p.80
Chapter 3.3.2 --- 站點分佈情況 --- p.80
Chapter 3.3.3 --- 資料整理方法 --- p.82
Chapter 3.4 --- 注釋 --- p.85
Chapter 第四章 --- 柯本氏氣候分類系統的普通集合表示 --- p.86
Chapter 4.1 --- 柯本氏氣候類型可視一組集合 --- p.86
Chapter 4.2 --- 結果及分析 --- p.96
Chapter 第五章 --- 柯本氏氣侯分類之模楜集合分析－隸屬度分析 --- p.99
Chapter 5.1 --- 訂定隸屬涵數方法及區劃步驟 --- p.99
Chapter 5.2 --- 結果及隸屬度分析　　 --- p.108
Chapter 5.3 --- 中國氣候區的劃定 --- p.125
Chapter 5.4 --- 小結 --- p.140
Chapter 第六章 --- 柯本氏氣類之模糊集合分析－分割度分析 --- p.143
Chapter 6.1 --- 分割與區界 --- p.143
Chapter 6.2 --- 結果及分析 --- p.146
Chapter 6.3 --- 中國氣候區重疊地帶的劃訂 --- p.155
Chapter 6.4 --- 小結 --- p.166
Chapter 6.5 --- 注釋 --- p.169
Chapter 第七章 --- 柯本氏氣候分類法的改進 --- p.170
Chapter 7.1 --- 柯本氏氣候分類法的改善 --- p.170
Chapter 7.2 --- 改良後的柯本氏範式之中國氣候區劃 --- p.186
Chapter 7.3 --- 與中國植被區的劃配合情況　 --- p.186
Chapter 7.4 --- 與中國土壤區劃的配合情況　　 --- p.194
Chapter 第八章 --- 後語 --- p.208
Chapter 8.1 --- 研究結果要點重申 --- p.208
Chapter 8.2 --- 研究限制 --- p.210
Chapter 8.3 --- 研究展望 --- p.213
參考文獻 --- p.215
附錄
Chapter I --- 中國各省、市、自治區志面　 --- p.229
Chapter II --- 柯氏氣候類型的隸屬函數 --- p.235
Chapter III --- 電腦計算程式 --- p.254
Chapter IV --- 隸屬度計算結果 --- p.259
Chapter （一） --- 原本的柯本氏氣候類型的隸屬度計算結果 --- p.259
Chapter （二） --- 改良後的柯本氏氣候類型的隸屬度計算結果 --- p.265

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34

"Understanding Open Spaces in an Arid City". Doctoral diss., 2011. http://hdl.handle.net/2286/R.I.14309.

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abstract: This doctoral dissertation research aims to develop a comprehensive definition of urban open spaces and to determine the extent of environmental, social and economic impacts of open spaces on cities and the people living there. The approach I take to define urban open space is to apply fuzzy set theory to conceptualize the physical characteristics of open spaces. In addition, a 'W-green index' is developed to quantify the scope of greenness in urban open spaces. Finally, I characterize the environmental impact of open spaces' greenness on the surface temperature, explore the social benefits through observing recreation and relaxation, and identify the relationship between housing price and open space be creating a hedonic model on nearby housing to quantify the economic impact. Fuzzy open space mapping helps to investigate the landscape characteristics of existing-recognized open spaces as well as other areas that can serve as open spaces. Research findings indicated that two fuzzy open space values are effective to the variability in different land-use types and between arid and humid cities. W-Green index quantifies the greenness for various types of open spaces. Most parks in Tempe, Arizona are grass-dominant with higher W-Green index, while natural landscapes are shrub-dominant with lower index. W-Green index has the advantage to explain vegetation composition and structural characteristics in open spaces. The outputs of comprehensive analyses show that the different qualities and types of open spaces, including size, greenness, equipment (facility), and surrounding areas, have different patterns in the reduction of surface temperature and the number of physical activities. The variance in housing prices through the distance to park was, however, not clear in this research. This dissertation project provides better insight into how to describe, plan, and prioritize the functions and types of urban open spaces need for sustainable living. This project builds a comprehensive framework for analyzing urban open spaces in an arid city. This dissertation helps expand the view for urban environment and play a key role in establishing a strategy and finding decision-makings.
Dissertation/Thesis
Ph.D. Geography 2011

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35

Nugroho, Setyo [Verfasser]. "Concept of compatibility in shipping : fuzzy set theory and case-based reasoning approaches / vorgelegt von Setyo Nugroho". 2005. http://d-nb.info/975493388/34.

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36

Yuan, Xin. "Multi-approaches to achieve an advanced cognitive agent in a new type of parallel processing computer". Thesis, 2020. http://hdl.handle.net/2440/130741.

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In this work, we addressed the problem of developing an agent-based artificial general intelligence that can be implemented in compact and power-efficient electronic hardware. We proposed an approach intended to show the feasibility of using this conceptual hardware-based architecture to replicate simple cognitive behaviours. This research started with surveys on cognitive behaviours and their decision-making architectures and compared them with a production rule-based parallel processing computation architecture. In order to demonstrate their potential, a sample case study of the homing behaviour of honey bees was undertaken to demonstrate the possibility of reproducing cognitive behaviours using a production rule-based cognitive architecture. We developed rule-based agents for a mobile platform which, under experimental conditions, made decisions to retrace its path back to a target position by comparison with the reference images. The agent made consistent overall cognitive decisions using fuzzified elements and guided the system reliably to target positions. Then, the research shifted to finding cognitive data representations and constructing cognitive decision-making structures in that production rule-based system. We introduced a new symbolic way of describing the significant features in an image, which is to use a collection of fuzzy symbolic elements to describe the characteristics of the current environmental information. It filtered out any unnecessary details, yet retained sufficient information describing the frame to enable reliable comparisons between images for the purposes of navigation. Numerical data were converted into fuzzy symbolic representations of the surrounding environment. The modified Fuzzy Inference System includes the reasoning rules used to support the cognitive decision-making process. One of the main disadvantages of a rule-based approach is the effort spent on developing rules. In order to reduce the workload of developing rules manually for agents, a modified Association Rules Mining (ARM) method was introduced to discover effective rules for agents autonomously, based on training data sets. This novel rule development method has been demonstrated through a trainable autonomous parking system, which can develop rules for autonomous parking agents.
Thesis (Ph.D.) -- University of Adelaide, School of Electrical and Electronic Engineering, 2021

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