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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

Selecting Web Services by Problem Similarity

Yan, Shih-hua 11 February 2009 (has links)
The recent development of the service-oriented architecture (SOA) has provided an opportunity to apply this new technology to support model management. This is particularly critical when more and more decision models are delivered as web services. A web-services-based approach to model management is useful in providing effective decision support. When a decision model is implemented as a web service, it is called a model-based web service. In model management, selecting a proper model-based web service is an important issue. Most current research on selecting such web service relies on matching inputs and outputs of the model, which is oversimplified. The incorporation of more semantic knowledge may be necessary to make the selection of model-based web services more effective. In this research, we propose a new mechanism that represents the semantics associated with a problem and then use the similarity of semantic information between a new problem description and existing web services to find the most suitable web services for solving the new problem. The paper defines the concept of entity similarity, attribute similarity, and functional similarity for problem matching. The web service that has the highest similarity is chosen as a base for constructing the new web services. The identified mapping is converted into BPEL4WS codes for utilizing the web services. To verify the feasibility of the proposed method, a prototype system has been implemented in JAVA.
42

By parallel reasoning with bioethics: toward unity and effectiveness in the theory and practice of environmental ethics

Eggleston, John Edward January 2011 (has links)
Whether philosophy can contribute decisively towards alleviating humanity’s pressing environmental predicament I here argue in the affirmative. There are many considerations that challenge my case. Specifically, I show that environmental ethics, the subdiscipline of moral philosophy which was founded on the presumption of this possibility, has faltered. The field threatens to divide between “impractical theoretical” discourses within the academy, and “pragmatic” and largely atheoretical “practical” engagements with environmental science, policy and management. To help environmental ethics advance beyond this dysfunctional division, I explore methodological comparisons with bioethics, the “most successful field of applied ethics”. My deliberations apply in novel ways Bartha’s model for evaluating the plausibility of scientific hypotheses that incorporate analogies. In an initial test application of Bartha’s model, I evaluate the relevance to environmental ethics of the failure of the “top-down” applied ethics approach in bioethics. I present good reasons to conclude that environmental ethics can indeed learn from this failure. I also conclude that my trial application of Bartha’s model is promising. I then evaluate two proposals for reforms towards the greater practical effectiveness of environmental ethics. First I evaluate the plausibility of the proposal of Minteer and Collins for a new field of “ecological ethics”. They argue for the adoption of the broadly pragmatic methodological commitments now prevailing in bioethics. Because they focus primarily on supporting individual rather than collaborative processes of ethical judgment, I argue they risk facilitating an ethically pernicious “ecological paternalism” on analogy with the widely condemned practice of medical paternalism. Second I evaluate Norton’s proposal to incorporate environmental ethics within the adaptive ecosystem management paradigm. By arguing that the tasks of seeking cultural and biophysical sustainability within spatiotemporally defined communities must be integrated, Norton offers a potentially vital interface for intelligent and just interaction between culture and wider nature. I also argue this interface may be of more general relevance to bioethics and moral and political philosophy. However, a significant theoretical challenge for Norton’s sustainability model is identified. I argue that his model provides a thought experiment which illustrates the conceptual and practical incoherence of the primary liberal mechanisms for managing ethical conflict once these are applied to the sustainability challenge. Those mechanisms are the separation of public and private spheres and the simultaneous pursuit within private spaces of mutually exclusive conceptions of the good (and biophysically sustainable) life. I argue that rectifying this failure defines a vital, albeit daunting, theoretical and practical challenge for environmental ethics. That is to reconceptualise ethical conflict and to help design and facilitate practical processes to achieve sufficient common ethical agreement. Addressing this challenge is beyond the scope of this dissertation. However, some promising work and possibilities for further research are outlined. I conclude that I have successfully defended the value of analogical comparison with bioethics for enhancing the unity and effectiveness of theory and practice in environmental ethics. I therefore further conclude that I am correct to affirm that philosophy can, and I believe indeed should, contribute more effectively toward alleviating humanity’s pressing environmental predicament.
43

Analogical reasoning in science education : - connections to semantics and scientific modelling in thermodynamics

Haglund, Jesper January 2012 (has links)
Analogiskt tänkande är en central kognitiv förmåga som vi använder i vardagslivet, såväl som i mer formella sammanhang, såsom i forskning och undervisning. Föreliggande avhandling behandlar hur analogier och analogiskt tänkande, uppmärksamhet på semantik och förståelse för vetenskaplig modellering kan användas för att hantera utmaningar i naturvetenskapsundervisningen, särskilt inom området termodynamik. Dessutom presenteras ett teoretiskt ramverk över hur analogiskt tänkande förhåller sig till semantik och vetenskaplig modellering, tre ämnesområden som alla utgår ifrån att finna motsvarigheter mellan två olika domäner. Mot denna bakgrund fokuserar avhandlingen på följande forskningsfrågor: I vilken utsträckning används analogier för att koppla olika representationer av ett fenomen till varandra och till det representerade fenomenet? Hur relaterar självgenerade analogier till vetenskaplig modellering? Avhandlingen består av fyra publicerade tidskriftsartiklar och en kappa. Den första artikeln är en semantisk utredning av ordet ’entropi’, den andra artikeln är en empirisk undersökning av synen på vetenskaplig modellering i olika kunskapstraditioner, och de tredje och fjärde artiklarna är empiriska undersökningar av fysiklärarstudenters respektive förstaklassares självgenererade analogier för termiska fenomen. Från ett metodperspektiv utfördes de empiriska studierna i en huvudsakligen kvalitativ tradition, där centrala resonemang exemplifieras genom analys av dialogutdrag. I de två studierna av självgenererade analogier fick deltagarna olika former av stöttning i form av social interaktion med varandra, gemensam erfarenhet av naturfenomen och diskussion kring deras representationer av fenomenen. I kappan utvecklas det teoretiska ramverket och mot den bakgrunden görs en omanalys av artiklarnas resultat. En central ståndpunkt i avhandlingen är att varje fenomen kan representeras på många olika sätt, som alla kan vara lämpliga och användbara i olika sammanhang med tyngdpunkt på olika aspekter av fenomenet. Rörande analogiskt tänkande anförs att elever och studenter kan skapa flera egna analogier för att få en rikare, kompletterande bild av ett fenomen, snarare än att undervisas utifrån en enda förment bästa analogi. Med utgångspunkt från vetenskaplig modellering kan olika representationer eller modeller lyfta fram olika aspekter av ett fenomen, med olika grad av idealisering och inom olika kunskapstraditioner. Slutligen, från ett semantiskt perspektiv kan ett ord svara mot flera, distinkta, men relaterade betydelser – fenomenet polysemi. Dessa tre perspektiv kan erbjuda konstruktivistiska ansatser till begreppsförståelse inom naturvetenskapsundervisningen, genom att elever och studenter uppmuntras att i dialog knyta till sin vardagsföreställning av de begrepp och fenomen de möts av, snarare än att byta ut den mot ett enda, förmodat korrekt vetenskapligt begrepp. Dessutom hävdas att den naturvetenskapsdidaktiska forskningen kan komma långt med ett strukturellt fokus på analogiskt tänkande och vetenskaplig modellering, där man försöker finna motsvarigheter mellan domäners beståndsdelar och deras relationer och helst isomorfism, en perfekt  överensstämmelse, men att beaktande av andra dimensioner, såsom en insikt i kognitionens förankring i kroppen och varseblivningen, de pragmatiska, kontextuella sammanhangen mot vilken bakgrund tänkande sker och språkets särskilda karaktär, krävs för en mer heltäckande bild. / Analogical reasoning is a central cognitive ability that is used in our everyday lives, as well as in formal settings, such as in research and teaching. This dissertation concerns how analogies and analogical reasoning, attention to semantics and insight into scientific modelling may be recruited in order to come to terms with challenges in science education, in particular within the field of thermodynamics. In addition, it provides a theoretical framework of how analogy relates to semantics and the practice of scientific modelling, three fields of study which all strive to map correspondences between two different domains. In particular, the dissertation addresses the following research questions: To what degree is analogy involved in connecting different representations of a phenomenon to each other and to the represented phenomenon? How do students’ selfgenerated analogies relate to the practice of scientific modelling? The dissertation comprises four published journal articles and a cover story. The first article is a semantic investigation of the word ‘entropy’, the second article is an empirical study of the view on scientific modelling in different traditions of knowledge, and the third and fourth articles are empirical studies of self-generated analogies for thermal phenomena among preservice physics teachers and first-graders, respectively. From a methodological point of view, the empirical studies were conducted in a primarily qualitative tradition, where central lines of reasoning are exemplified by analysis of dialogue excerpts. The two studies on self-generated analogies provided the participants with extensive scaffolding in the form of social interaction among peers, interaction with physical phenomena and discussion of their representations of the phenomena. The theoretical framework is developed in the cover story, which provides a background to the individual studies and reanalyses of the findings. A key claim of the dissertation is that any phenomenon can be represented in many different ways, all potentially adequate and useful in different contexts, emphasising different aspects of the phenomenon. Applied to the field of analogical reasoning, it is argued that students can generate several analogies themselves in order to get a richer, complementary view of a phenomenon, as opposed to be provided with a presumed best analogy. As for scientific models, many different representations or models may bring across different aspects of a phenomenon at varying degrees of idealisation and within different traditions of knowledge. Finally, in semantics, one word may correspond to several distinct, yet related, meanings: the phenomenon of polysemy. These three perspectives may provide constructivist approaches to conceptual development in science teaching, in which students are encouraged to connect to and enrich their everyday understanding of encountered concepts and phenomena in dialogue, rather than merely abandoning them for one single, supposedly correct, scientific concept. In addition, science education research can come quite far with structural approaches to analysing analogical reasoning and scientific modelling, establishing correspondences between entities in different domains, ultimately striving for isomorphism, perfect matches, but other dimensions, such as the perceptual, embodied nature of our cognition, the pragmatic, contextual circumstances in which any act of reasoning is performed, and the specificities of language, should also be taken into account for a fuller view.
44

A trama e a urdidura - um ensaio sobre educação a partir do encantamento / The weft and the warp an essay about education from the Enchantment

Beatriz Barcellos Machado 18 March 2011 (has links)
Este trabalho recupera elementos do Sufismo via mística originalmente islâmica , nota-­ damente da obra de Ibn \'Arabî, e busca inseri-­los no contexto da sociedade e do pensa-­ mento atuais a fim de pensar as primeiras linhas de um modelo pedagógico voltado para a singularidade e a cidadania. / The present paper brings back subjects found in Sufism, especially the works of Ibn \'Arabî, and tries to integrate them into the context of present society and contemporary thought, in order to sketch the first lines of a pedagogical model directed towards singularity and citizenship.
45

Training an implicit reasoning strategy: engaging specific reasoning processes to enhance knowledge acquisition

Vowels, Christopher L. January 1900 (has links)
Doctor of Philosophy / Department of Psychology / James C. Shanteau / A training protocol was developed to teach an implicit reasoning strategy to encourage the consideration of alternatives, specifically in behavioral trap decision environments. Engaging the strategy would thereby decrease the effect of focusing on traps, resulting in more rational behavior. In two studies, training was delivered in an instructor-less environment using paper-pencil and multimedia examples. The main training components consisted of analogical problem solving and counterfactual thinking. The potential moderators between training and performance outcomes consisted of an information processing disposition Need for Cognitive Closure, an individualized approach to decisions, Decision-Making Style, and a capacity to process information Working Memory Capacity. Arousal and mood were also measured before, during, and after the training as both have been linked with learning. In Study 1, participants engaged in analogical problem solving, additive counterfactual thinking, subtractive counterfactual thinking, or none of these (i.e., control group). Results revealed that the training was minimally effective, although some comparisons revealed a large shift from pre- to post-training in commitment score away from trap options. Likewise, the Need for Cognitive Closure was the best predictor of decision behavior revealing that a predisposition for amount of information processed during decision making is indicative of behavioral outcomes in this decision environment. Based on results from Study 1, the training was reformatted in Study 2 to obtain the maximum potential benefit. Analogical problem solving was coupled with each form of counterfactual thinking so participants engaged in both critical thinking processes. When training was effective, the two forms were differentially effective as related to behavioral trap problem type. Forward-looking training assisted problem types that force explicit cost recognition and immediate decision outcomes. Past-looking training assisted problem types that force little cost recognition and delayed decision outcomes. Results of this project could be used to enhance the acquisition of critical thinking as well as improve educational practices. Both information processing disposition and decision approach style predicted learning whereas capacity to process information and training manipulations did not. Future projects will examine how long the training effects last and if critical thinking training can be successfully applied to other decision environments.
46

Découverte et exploitation de proportions analogiques dans les bases de données relationnelles / Discovering and exploiting analogical proportions in a relational database context

Correa Beltran, William 18 July 2016 (has links)
Dans cette thèse, nous nous intéressons aux proportions analogiques dans le contexte des bases de données relationnelles. Les proportions analogiques permettent de lier quatre éléments dans une relation du type ''A est à B ce que C est à D''. Par exemple, « Paris est à la France ce que Rome est à l'Italie ». Nous avons étudié le problème de la prédiction de valeurs manquantes dans une base de données en utilisant les proportions analogiques. Un algorithme de classification fondé sur les proportions analogiques a été modifié afin de résoudre ce problème. Puis, nous avons étudié les propriétés des éléments appartenant à l'ensemble d'apprentissage des classificateurs analogiques fréquemment exploités pour calculer la prédiction. Ceci nous a permis de réduire considérablement la taille de cet ensemble par élimination des éléments peu pertinents et par conséquent, de diminuer les temps d'exécution de ces classificateurs. La deuxième partie de la thèse a pour objectif de découvrir de nouveaux patrons basés sur la relation d'analogie, i.e., des parallèles, dans les bases de données. Nous avons montré qu'il est possible d'extraire ces patrons en s'appuyant sur des approches de clustering. Les clusters produits par de telles techniques présentent aussi un intérêt pour l'évaluation de requêtes recherchant des patrons d'analogie dans les bases de données. Dans cette perspective, nous avons proposé d'étendre le langage de requêtes SQL pour pouvoir trouver des quadruplets d'une base de données satisfaisant une proportion analogique. Nous avons proposé différentes stratégies d'évaluation pour de telles requêtes, et avons comparé expérimentalementleurs performances. / In this thesis, we are interested in the notion of analogical proportions in a relational database context. An analogical proportion is a statement of the form “A is to B as C is to D”, expressing that the relation beween A and B is the same as the relation between C and D. For instance, one may say that “Paris is to France as Rome is to Italy”. We studied the problem of imputing missing values in a relational database by means of analogical proportions. A classification algorithm based on analogical proportions has been modified in order to impute missing values. Then, we studied how analogical classifiers work in order to see if their processing could be simplified. We showed how some typeof analogical proportions is more useful than the others when performing classification. We then proposed an algorithm using this information, which allowed us to considerably reduce the size of the training set used by the analogical classificationalgorithm, and hence to reduce its execution time. In the second part of this thesis, we payed a particular attention to the mining of combinations of four tuples bound by an analogical relationship. For doing so, we used several clustering algorithms, and we proposed some modifications to them, in order tomake each obtained cluster represent a set of analogical proportions. Using the results of the clustering algorithms, we studied how to efficiently retrieve the analogical proportions in a database by means of queries. For doing so, we proposed to extend the SQL query language in order to retrieve from a database the quadruples of tuples satisfying an analogical proportion. We proposed severalquery evaluation strategies and experimentally compared their performances.
47

Appariement relationnel et raisonnement par analogie chez le babouin (Papio papio) : continuités et discontinuités avec les processus d'analogie chez l'humain

Maugard, Anaïs 06 June 2014 (has links)
Le raisonnement par analogie est un aspect fondamental de la cognition humaine souvent considéré comme propre à notre espèce. Des travaux récents utilisant des tâches d'appariement relationnel suggèrent que des chimpanzés, des babouins et des capucins sont également capables de comparer des relations exprimées par des paires d'objets. Cependant, des doutes persistent quant aux stratégies cognitives qu'ils emploient pour résoudre ces tâches, et notamment l'implication du raisonnement par analogie. Cette thèse a pour objectif (1) de déterminer ces stratégies chez le babouin, (2) d'appréhender les facteurs permettant leur émergence et (3) plus généralement de caractériser les continuités et discontinuités entre l'homme et les primates non humains dans leur capacité à raisonner par analogie. Nous avons conduit trois études chez le babouin de Guinée pour aborder ces questions. La première montre que le traitement relationnel chez le babouin implique, comme chez l'homme, à la fois une prise en compte des propriétés des objets et de leurs relations. La seconde étude montre que les babouins utilisent le raisonnement par analogie pour résoudre une tâche d'appariement relationnel puisqu'ils traitent trois niveaux d'informations ; à savoir (1) les objets, (2) les relations entre objets et (3) des relations entre ces relations. La troisième étude montre leur capacité à traiter des relations multidimensionnelles dans une version plus complexe de la tâche d'appariement relationnel. Dans une perspective évolutive, nous discutons des implications de ces travaux du point de vue des continuités et discontinuités entre l'homme et les primates non humains dans leurs capacités d'analogie. / Analogical reasoning is a cornerstone aspect of human cognition, often considered to be human specific. Recent experiments using relational matching-to-sample (RMTS) tasks suggest that chimpanzees, baboons and capuchin monkeys can understand and compare the relations expressed between and within pairs of objects. However, the exact strategies used by these species to solve analogy problem remain unclear at this point. We conducted three studies exploring different aspects of analogical reasoning in the Guinea baboons (Papio papio). The first study showed that (1), as in human, relational processing in baboons involves the processing of both perceptive and relational information, and that (2) the relative contribution of these two types of processing depends on the number of items illustrating each relation during training. The second study showed that the cognitive strategy developed by baboons in a RMTS task involves analogical reasoning. The third study emphasized the ability of baboons to process multidimensional relations in a more complex version of the RMTS task. Altogether, these findings from suggest that (1) baboons are able to use analogical reasoning, to solve at least tasks involving perceptive relations; (2) relational processing and further analogical reasoning skills depend on their previous experience with the different relations. We shall discuss the potential implications of those findings, and the continuity and discontinuity of analogical reasoning skills found in human and nonhuman primates.
48

Varaktig förgänglighet : En undersökning av kreativitet inom ramen för ett historiskt tänkande kring kontinuitet och förändring / Lasting Change : A study of creativity within historicial thinking on continuity and change

Deltner, Johan January 2021 (has links)
Creative thinking is a popular and ambiguous ability but so far we have limited knowledge about how creativity work within history education. The purpose of this study was therefore to investigate how individual creativity and a historical thinking with a focus on continuity and change relate to each other within history education. Data was collected with the help of an authentic history assignment and analyzed with qualitative content analysis and statistical correlations. A constructivist framework with a specific focus on the The Geneplore Model of Creativity and Historical thinking was chosen to guide the analysis. Results point to several similarities between creativity and historical thinking on continuity and change, with both concepts focusing on constructing new and meaningful knowledge. Here, the strongest correlation was found between creative thinking and reflections about change through history. The analysis also pointed to cognitive processes with a particularly promising potential to develop both creative and historical thinking, namely divergent thinking with the purpose to generate several alternative answers, and janusian thinking with the purpose to generate contradictory perspectives. Further, the analysis also revealed some differences between creativity and historical thinking on continuity and change. Here, thinking creatively with help of distant analogical thinking was particularly difficult since those conclusions seldom were rooted in historical facts. In fact, many of the creative conclusion identified in this study showed a potential to develop students understanding of the past, but were still in an undeveloped stage. These results indicate a need for a continued critical exploration of creative answers after initially being generated. In sum, the identified similarities and differences between creative and historical thinking on continuity and change demonstrate that creativity could play a role in the development of students historical understanding and points to a promising direction for future research interested in creative comparisons over time.
49

Application of Analogical Reasoning for Use in Visual Knowledge Extraction

Combs, Kara Lian January 2021 (has links)
No description available.
50

The Bay Of Pigs Invasion: A Case Study In Foreign Policy Decision-making

Murgado, Amaury 01 January 2009 (has links)
Policy makers have long recognized the importance of considering past experience, history, and the use of Analogical reasoning when making policy decisions. When elite political actors face foreign policy crises, they often use their past experience, refer to history, and use Analogical reasoning to help them frame their decisions. In the case of the ill-fated invasion of Cuba at the Bay of Pigs, the use of Analogical reasoning revolving around past covert successes may have created an environment for faulty foreign policy decision-making. Former members of the Office of Strategic Services (OSS) filled the ranks of the Central Intelligence Agency (CIA) and held key positions within the Eisenhower and Kennedy administrations. OSS success with guerrilla warfare, sabotage, and intelligence gathering during World War II, coupled with early CIA covert successes (specifically in Guatemala), may have led President Kennedy to make the wrong policy decisions with regard to dealing with Fidel Castro and Cuba. This research explores the use of Analogical reasoning during the decision-making process by way of process-tracing. Process-tracing attempts to identify the intervening processes between an independent variable (or variables) and the outcome of the dependent variable. We look at six critical junctures and compare how Groupthink, the Bureaucratic Politics Model, and Analogical reasoning approaches help explain any causal mechanisms. The findings suggest that Analogical reasoning may have played a more significant role in President Kennedy's final decision to invade Cuba than previously thought. The findings further suggest that by using the Analogical reasoning approach, our understanding of President Kennedy's foreign policy in Cuba is enhanced when compared to the Groupthink and Bureaucratic Politics Model approaches emphasized in past research.

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