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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

Aplicativo computacional da função discriminante quadrática para utilização em ciências experimentais

Simeão, Sandra Fiorelli de Almeida Penteado [UNESP] 19 December 2006 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:31:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-12-19Bitstream added on 2014-06-13T21:02:54Z : No. of bitstreams: 1 simeao_sfap_dr_botfca.pdf: 899191 bytes, checksum: da6ed77a45734c278c56395d23c51cd0 (MD5) / Universidade Estadual Paulista (UNESP) / Aspectos teóricos relacionados à Análise Discriminante Multivariada - Linear e Quadrática - foram discutidos, por meio de um extenso levantamento histórico da função discriminante, com seus primórdios no trabalho de Fisher e sua posterior evolução, enfocando o intenso desenvolvimento das técnicas classificatórias discriminantes com o advento dos computadores. Foi dada ênfase aos softwares estatísticos desenvolvidos para PC, que realizam a análise discriminante, e que representam uma grande contribuição para pesquisadores e usuários desta técnica. Considerando a dificuldade existente quanto a aplicativos computacionais acessíveis a pesquisadores da área de ciências agrárias, elaborou-se um programa que realiza a análise discriminante quadrática com as respectivas freqüências de classificação correta, bem como o manual explicativo do usuário. Verificou-se que a função discriminante quadrática trata de um procedimento bastante útil nas ciências agrárias, como, por exemplo, em estudos nas áreas de solos, cultivos diversos (soja, milho, cana de açúcar, pupunha, braquiária, frutas), criação de animais e classificação e seleção de madeiras; porém, subutilizada frente à dificuldade de programas computacionais de fácil manuseio e acesso a pesquisadores das áreas aplicadas. Os procedimentos estudados e discutidos foram ilustrados com exemplos de aplicação, utilizando dados experimentais agronômicos de espécies de Girassóis e Eucalyptus, submetidos ao aplicativo desenvolvido. / A large historical study of the discriminant function has allowed a discussion on theoretical aspects related to the Multivaried Discriminant Analysis - Linear and Quadratic, showing its past in the work of Fisher and its later evolution, emphasizing the wide development of classificatory discriminant techniques with the happening of the computers, and specific statistic softwares which practice the discriminant analysis, representing a big contribution to researches and users of this technique. Considering the difficulty in relation to accessible softwares to researches of the agrarian area, a software which performs a linear and quadratic discriminant analysis was built with its frequencies of correct classification, as well as an explicative manual to users. The quadratic discriminant was studied as being a very useful process in agrarian sciences. Some examples of this usefulness is in studies of the ground, diversified cultivation (soybean, corn, sugarcane, pejibaye, brachiaria decumbens fruits), animal creation and wood selection, and classification; however, misused in relation to the difficulties of easy handing and access to researchers of applied areas. The studied and discussed procedures were illustrated with applications, using agronomic experimental data of Sunflower and Eucalyptus, submitted to developed software.
42

O Avesso e o Direito da escritura camusiana: de L\'Êtranger aos Écrits de Jeunesse / The Wrong Side and The Right Side of camusian scripture: From LÉtranger to Écrits de Jeunesse.

Samara Fernanda Almeida Oliveira de Locio e Silva Geske 02 September 2011 (has links)
LÉtranger e Le Mythe de Sisyphe fazem parte do que Camus nomeou de ciclo do absurdo,no qual se unem sob esse mesmo tema a escrita literária e a reflexão filosófica. O absurdo é essencialmente definido como um divórcio do homem com o mundo, mas encontramos no percurso filosófico do autor uma noção anterior a essa, as núpcias. A análise de todos os textos anteriores ao ciclo do absurdo nos mostra, porém, que núpcias e absurdo sempre fizeram parte da reflexão camusiana. Essas duas noções opostas sempre conviveram juntas, formando o que chamamos de o avesso e o direito, ideia que se reflete no título da primeira recolha de ensaios do autor. O objetivo dessa dissertação é, através de todos os escritos anteriores à narrativa, definir o avesso e o direito como um tema fundamental para a escritura de LÉtranger, onde se conjugam as núpcias e o absurdo, a literatura e a filosofia. / LÉtranger and Le Myth de Sisyphe make part of what Camus named as the absurd cycle, where the literary writing and the philosophical reflection are joined together under the same theme. The absurd is essentially definite as a divorce of man with the world, but we meet in the authors philosophical course a previous notion to it, the nuptials. The analysis of all former texts to the absurd cycle, show us, nevertheless, that nuptials and absurd always were part of camusian reflection. These two opposite notions always lived together, shaping what we call the wrong side and the right side, the title of the authors first reunion of essays. The purpose of this dissertation is, through the all writings written before the narrative, definite the wrong side and the right side as a fundamental theme to the scripture of LÉtranger, where the nuptials and the absurd, the literature and philosophy are joined together.
43

Modelagem da dependência entre fatores de crédito e mercado para apreçamento e gerenciamento de risco em exposições de derivativos

Chernizon, Eitan 01 February 2013 (has links)
Submitted by Eitan Chernizon (eitan.chernizon@sgcib.com) on 2013-02-15T17:46:24Z No. of bitstreams: 1 MODELAGEM DA DEPENDÊNCIA ENTRE FATORES DE CRÉDITO E MERCADO.pdf: 1474762 bytes, checksum: 19b13b065762c89e556619042eaf016d (MD5) / Approved for entry into archive by Suzinei Teles Garcia Garcia (suzinei.garcia@fgv.br) on 2013-02-18T12:58:52Z (GMT) No. of bitstreams: 1 MODELAGEM DA DEPENDÊNCIA ENTRE FATORES DE CRÉDITO E MERCADO.pdf: 1474762 bytes, checksum: 19b13b065762c89e556619042eaf016d (MD5) / Made available in DSpace on 2013-02-18T13:20:44Z (GMT). No. of bitstreams: 1 MODELAGEM DA DEPENDÊNCIA ENTRE FATORES DE CRÉDITO E MERCADO.pdf: 1474762 bytes, checksum: 19b13b065762c89e556619042eaf016d (MD5) Previous issue date: 2013-02-01 / Apesar das recentes turbulências nos mercados, a utilização de derivativos negociados fora de uma câmara de compensação tem apresentado rápido crescimento, constituindo um dos maiores componentes do mercado financeiro global. A correta inclusão da estrutura de dependência entre fatores de crédito e mercado é de suma importância no apreçamento do risco de crédito adjacente a exposições geradas por derivativos. Este é o apreçamento, envolvendo simulações de Monte Carlo, feito por uma instituição negociante para determinar a redução no valor do seu portfólio de derivativos devido a possibilidade de falência da contraparte. Este trabalho apresenta um modelo com abordagem paramétrica para lidar com a estrutura de dependência, intuitivo e de fácil implementação. Ao mesmo tempo, os números são contrastados com os resultados obtidos através de uma abordagem neutra ao risco para um portfólio replicante, sob o mesmo processo estocástico. O modelo é aplicado sobre um contrato a termo de câmbio, e diferentes cópulas e fatores de correlação são utilizados no processo estocástico. / Despite recent turmoils, the use of derivatives traded outside of a clearinghouse has shown rapid growth and is a major component of the global financial market. The correct inclusion of the dependence structure between market and credit factors is of high importance in the pricing of credit risk exposures generated by the adjacent derivatives. This pricing, involving Monte Carlo simulations, is done by a dealer to determine the reduction in the value of its derivatives portfolio because of the bankruptcy of the counterparty. This paper presents a model with parametric approach to deal with the dependence structure, intuitive and easily implemented. Meanwhile, the numbers are contrasted with results obtained using a risk neutral approach for a replicating portfolio under the same stochastic process. The model is applied on a forward exchange contract, and different copulas and correlation factors are used in the stochastic process.
44

Metodología de gestión de la demanda basado en forecast: solución para pronóstico erróneo de materiales en industria hotelera / Demand management methodology based on forecast: solution for wrong forecast of materials in hotel industry

Velazco Buzzi, Rodrigo, Corilloclla Damas, Basilio Daniel 08 February 2021 (has links)
El pronóstico erróneo de huéspedes y materiales en los hoteles de Huancayo es un problema que conlleva a generar gastos ocasionados por rotura de stock y exceso de stock, que a su vez conlleva a pérdida de clientes. De esta forma se diseñó un modelo el cual mediante cuatro métodos de pronóstico puede sugerir al hotel qué cantidad de huéspedes van a arribar al hotel y cuántos productos se debe de comprar para evitar costos adicionales. En esta investigación se dará a conocer los resultados obtenidos con la aplicación de un modelo de pronóstico de la demanda basado en forcast en el hotel “Rey” ubicado en la provincia de Huancayo del departamento de Junín. En el presente artículo se pronosticó cantidades para el año 2020 y se comparan mediante el error MAPE, así se logra sugerir un pronóstico con un porcentaje de error reducido y mejor a comparación con el que se tenía antes de la implementación. / The wrong forecast of guests and materials in Huancayo’s hotels is a big problem that leads to the generation of expenses caused by stock breakage and excess stock, which in turn leads to loss of customers. In this way, a model was designed which, through four forecasting methods, can suggest to the hotel how many guests will arrive at the hotel and how many products should be purchased to avoid additional costs. In this research, the results obtained with the application of a demand forecasting model based on forcast in the “Rey” hotel, located in Huancayo, will be disclosed. In this article, quantities were predicted for the year 2020 and they are compared using the MAPE error, in this way is possible to suggest a forecast with a reduced and better error percentage compared to the one that was had before implementation. / Trabajo de investigación
45

Neo-Aristotelian Flourishing and Tragic Dilemmas

Sangha, Sangeeta 22 November 2011 (has links)
No description available.
46

Improving a Marker-Based System to Rate Assimilation of Problematic Experiences

Lani, James Anthony 25 June 2003 (has links)
No description available.
47

Intérêts et enjeux d’une révision interactive des textes au cycle 3 : le rôle de l’enseignant / Interests and issues of an interactive revision of texts at primary school (cycle 3) : the role of the teacher

Moussi, Dalila 13 December 2013 (has links)
Cette étude s'inscrit dans le champ de la didactique du français et porte sur l'analyse d'interactions langagières au cours de séances de révision de textes narratifs au CM2. Cette recherche se propose de réfléchir aux modalités d'une interaction qui favoriserait l'engagement des élèves dans la tâche. Elle se centre principalement sur l'activité du maître lors de séquences de "révisions interactives". La méthodologie s'appuie sur l'analyse de corpus oraux. Une étude empirique impliquant trois enseignantes ayant une ancienneté différente dans le métier nous permet de comparer les modes de communication pédagogique et d'examiner leur pertinence pour le développement de compétences évaluatives chez les élèves. Les résultats nous permettent de dégager quelques paramètres décisifs et d'esquisser un profil interactionnel des enseignantes lors de la révision de textes. L'étayage de l'enseignant est abordé sous différents angles : la posture assumée tout au long des échanges, les thèmes discutés, le degré d'adhésion par rapport aux propositions des élèves, la prise en compte des interventions par les reformulations mais aussi le rythme des échanges imposé. Nous prolongeons notre étude par l'analyse des stratégies inductrices de "bonnes réponses", c'est-à-dire tous les comportements verbaux du maître qui permettent d'influencer la réponse de l'élève et qui s'apparentent à une posture de contre-étayage. Cette étude permet de mettre en évidence la typicalité de l'expérience interactionnelle de l'enseignant dans le domaine de la révision de texte et d'ouvrir la voie à une didactique de l'écrit à l'école primaire fondée sur les interactions à l'oral. / This study belongs to the didactics of French and focuses on oral interactions analysis during revision sessions of narrative texts at the last year of primary school. The purpose of this study is to investigate how the oral interactions can improve pupils' commitment to the task. This research focuses more precisely on the activity of the teacher during interactive revision sessions. The methodological framework is based on oral resources. Our study implies three teachers at different levels of career and allows us to compare different modes of pedagogical communication in order to examine their pertinence for the development of the pupils' evaluative abilities. Results allow to bring out some decisive parameters and to suggest an interactional profile of teachers during texts revision. The teacher's scaffolding is approached from different points of view : the position held by the teacher throughout the exchanges, the discussed topics, the degree of joining to pupils' proposals, the consideration of pupils' interventions by reformulations and the interactional rhythm required by the teacher. The research will be extended by the analysis of the strategies which lead to the "right response" of the "expected response", in other words, all verbal communications which influence the response of the pupil and which correspond to wrong or inappropriate scaffolding. This study allows us to highlight the specificities of the interactional experience of the teacher in the field of the text revision and to pave the way to didactics of writing in primary school based on oral interactions.
48

Módulos neurais para modelagem de falsas memórias / Neural modules for false memories modelling

Pacheco, Renato Ferrari 08 April 2004 (has links)
As falsas memórias são um tipo falha de memória, em que o indivíduo pode (a) reconhecer como tendo visto antes um objeto ou evento que não tenha ocorrido ou (b) não reconhecer algo previamente presenciado. Estes são o falso reconhecimento e a rejeição errada. Segundo a teoria do rastro difuso, dois processos distintos agem em paralelo durante a memorização e reconhecimento, um sobre as informações literais (verbatim) e o outro sobre a essência do significado da palavra (gist). Neste trabalho é proposto um sistema modular de redes neurais artificiais que considera estes dois processos, características funcionais das estruturas cerebrais envolvidas na memorização e fluxo de informação análogo ao ocorrido no cérebro. O modelo neural é validado através de treinamento para armazenar e recuperar listas de palavras semanticamente relacionadas. Na formulação do modelo e da representação foram considerados a representação fonológica e significado das palavras, de forma a simular as computações ocorridas e os resultados obtidos em experimentos efetuados com sujeitos humanos. Nestes experimentos, 12 listas de aproximadamente 15 palavras, cada lista semanticamente relacionadas a um tema são ouvidas e, em seguida, algumas destas palavras, a palavra tema e outras palavras não relacionadas são também ouvidas e os indivíduos respondem se cada palavra fora ouvida previamente. Os resultados obtidos computacionalmente aproximam-se bastante dos resultados obtidos com sujeitos humanos, e o modelo produzido serve como base para estudo das influências dos diversos processos atuantes durante a memorização e reconhecimento. / False memories are a kind of memory failure, in which the subject may (a) recognize as known an never seen object or never happened fact or (b) don\'t recognize something that was already presented him. These are false memories and wrong rejections. According to false memory theory, two parallel processes act during memorization and recognition, one on verbatim information and other on gist information. In this work is proposed a artificial neural network model system that takes in account these two processes, functional issues about brain structures involved on memorization and the an information flow analog to the occurred in the brain. The neural model is validated by training to store in recover lists of semantically related words. In the model and representation scheme formulation, phonological and semantic informations were used intending to simulate brain computations and results of human subjects experiments. In such experiment, 12 lists of something about 15 semantically related words, are heard and, in the second step, in the sequence, many of these words, other related words and not related words are heard in a recognition test, when subjets say if that word was or was not heard during memorization steps. Results obtained from computer tests are very close of human results, and the produced model may be used as a tool for analysis of the influences of the many processes that take place during memorization and recognition.
49

Módulos neurais para modelagem de falsas memórias / Neural modules for false memories modelling

Renato Ferrari Pacheco 08 April 2004 (has links)
As falsas memórias são um tipo falha de memória, em que o indivíduo pode (a) reconhecer como tendo visto antes um objeto ou evento que não tenha ocorrido ou (b) não reconhecer algo previamente presenciado. Estes são o falso reconhecimento e a rejeição errada. Segundo a teoria do rastro difuso, dois processos distintos agem em paralelo durante a memorização e reconhecimento, um sobre as informações literais (verbatim) e o outro sobre a essência do significado da palavra (gist). Neste trabalho é proposto um sistema modular de redes neurais artificiais que considera estes dois processos, características funcionais das estruturas cerebrais envolvidas na memorização e fluxo de informação análogo ao ocorrido no cérebro. O modelo neural é validado através de treinamento para armazenar e recuperar listas de palavras semanticamente relacionadas. Na formulação do modelo e da representação foram considerados a representação fonológica e significado das palavras, de forma a simular as computações ocorridas e os resultados obtidos em experimentos efetuados com sujeitos humanos. Nestes experimentos, 12 listas de aproximadamente 15 palavras, cada lista semanticamente relacionadas a um tema são ouvidas e, em seguida, algumas destas palavras, a palavra tema e outras palavras não relacionadas são também ouvidas e os indivíduos respondem se cada palavra fora ouvida previamente. Os resultados obtidos computacionalmente aproximam-se bastante dos resultados obtidos com sujeitos humanos, e o modelo produzido serve como base para estudo das influências dos diversos processos atuantes durante a memorização e reconhecimento. / False memories are a kind of memory failure, in which the subject may (a) recognize as known an never seen object or never happened fact or (b) don\'t recognize something that was already presented him. These are false memories and wrong rejections. According to false memory theory, two parallel processes act during memorization and recognition, one on verbatim information and other on gist information. In this work is proposed a artificial neural network model system that takes in account these two processes, functional issues about brain structures involved on memorization and the an information flow analog to the occurred in the brain. The neural model is validated by training to store in recover lists of semantically related words. In the model and representation scheme formulation, phonological and semantic informations were used intending to simulate brain computations and results of human subjects experiments. In such experiment, 12 lists of something about 15 semantically related words, are heard and, in the second step, in the sequence, many of these words, other related words and not related words are heard in a recognition test, when subjets say if that word was or was not heard during memorization steps. Results obtained from computer tests are very close of human results, and the produced model may be used as a tool for analysis of the influences of the many processes that take place during memorization and recognition.
50

Ethique et poétique dans l'oeuvre de Paul Ricoeur et dans les traditions africaines / Ethics and poetics in the work of Paul Ricoeur and in the african traditions

N'Dreman, Assoi Jean-Luc 21 January 2013 (has links)
La philosophie ricœurienne indique qu’il n’est pas de compréhension de soi qui ne soit médiatisée par des signes, des symboles, des textes ; elle peut donc être interprétée comme une chance pour la philosophie africaine. En effet, si on estime que le champ éthique s’étend à tous les domaines de la vie, si on admet avec Ricœur que l’existence est synonyme d’action, à savoir que « dire ‘’je suis’’, c’est dire ‘’je veux, je meus, je fais’’ », alors l’Africain traditionnel qui n’a pas une pensée systématique comme l’exige la philosophie grecque, mais a plutôt développé une pensée de ce qu’il fait, peut apporter au discours éthique sa modeste contribution. En effet, ses mythes, ses contes et même quelquefois ses chants, contiennent un enseignement à la fois pratique, symbolique et philosophique, à caractère universel. Entrer à l’intérieur d’un conte, c’est comme entrer à l’intérieur de soi-même. / Ricoeur’s philosophy shows us that there is not any comprehension of self without it being mediated by signs, symbols and texts; it can be, therefore, interpreted as a chance given to the African philosophy. In fact, if we estimate that the ethical field extends to all human domains and if we admit, like Ricoeur does, the synonymy between action and existence – “to say I am, means I want, I move, I do” – thus the traditional African, who hasn’t a systematical thinking as required by the Greek philosophy, but instead has developed a thinking of what he can do, can bring into the ethical discourse his modest contribution. In reality, his myths, his tales and sometimes his chants, all contain a message that is at the same time: practical, symbolical and philosophical, with a universal character. To enter into a tail is like entering inside one’s self.

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