Made available in DSpace on 2016-04-04T18:28:17Z (GMT). No. of bitstreams: 1 Janete Tonete Suarez.pdf: 3648120 bytes, checksum: 70000b5a6a9c28d53162eb70b92c10b2 (MD5) Previous issue date: 2014-02-26 / The process of identifying talent/giftedness with a view to educational services requires knowledge and appropriate resources. In order to reduce barriers to talent identificationhas been increasing a growing demand for trained teachers and valid measurement instruments. Given this context, this study aimed to identify creative and intellectual talent in the classroom from three instruments: Evaluation Battery Intelligence and Creativity - Children's version (BAICI), in validation process; Non Verbal Child Reasoning Test (TNVRI) already validated in Brazil, and their perception of teachers obtained from the scale entitled Talent Identification by Professor (ITP). Four studies were proposed: 1. The development of the Talent Identification scale by the teacher; 2. Identification of intellectual and creative talents by the Professor; 3. Identification of creative and intellectual talents by psychological tests, and finally, 4. Evidence of validity by way of external criterion between the Battery (BAICI) and the Teste (TNVRI), and between Battery (BAICI) and the scale (ITP). The study sample was composed of four judges, 10 professors and 120 students from the 4th and 5th year of elementary school, two private schools in the metropolitan region of Campinas, SP. The age of participants ranged from 9 to 10 years of which 62 were females and 58 males. The results for each study were as follows: 1. The coefficient of Content Validity (CVC) of ITP instrument was 0.82, considered positive. 2. The teacher seems to notice more female talent for the highest averages in all areas. However, the hypothesis of gender equality should be rejected only for the Memory subscale in ITP. 3. Gender was not significant in any subtest of BAICI including verbal and figural creative skills. The same was found with TNVRI reinforcing the hypothesis of absence of significant cognitive gender differences. 4. There was correlation between the various subtests of BAICI. The highest of these was between the visual memory subtest and overall cognitive index. As to the evidence of validity by way of external criterion between BAICI and TNVRI, it was noticed a significant correlation between subtest only for the fast thinking. The values of Cronbach's alpha were 0.83 and 0.75 for the ITP and BAICI, demonstrating the accuracy of results. Students who scored above average in psychological instruments were identified through a qualitative - comparative analysis of students, but these same students were not identified by their teachers. We conclude that education should pay attention to the training of teachers so that they understand the different abilities present in the classroom and promote actions aimed at its development from varied and combined procedures. / O processo deidentificacao do talento/superdotacao com vistas ao atendimento educacional exigeconhecimento e recursos apropriados. Tem sido cada vez maior a demanda por professores capacitados e instrumentos validos de medida a fim de diminuir os obstaculos que impedem a identificacao do talento. Diante deste contexto, este estudo objetivou identificar talentos criativos e intelectuais na sala de aula a partir de tres instrumentos: Bateria de Avaliacao da Inteligencia e Criatividade forma Infantil (BAICI), em processo de validacao; Teste Nao Verbal de Raciocinio Infantil (TNVRI), ja validado no Brasil; e a percepcao dos professores obtida a partir da escala intitulada Identificacao de Talentos pelo Professor (ITP). Quatro Estudos foram propostos: 1. Elaboracao da escala Identificacao de Talentos pelo professor; 2. Identificacao de talentos intelectuais e criativos pelo professor; 3. Identificacao de talentos criativos e intelectuais por testes psicologicos; e finalmente,4. Evidencias de validade por forma de criterio externo entre BAICI e TNVRI, e entre BAICI e ITP. A amostra do estudo foi composta por quatro juizes avaliadores, 10 professorese 120 estudantes do 4.o e 5.o anos do Ensino Fundamentalde duas escolas particulares da regiao metropolitana de Campinas SP. A idade dos participantes variou dos 9 aos 10 anos dos quais 62 eram do genero feminino e 58masculino. Os resultados referentes a cada estudo foram os seguintes: 1. O Coeficiente de Validade do Conteudo (CVC) do instrumento ITP foi de 0,82, considerado positivo. 2. Oprofessor parece perceber mais o talento feminino pelas medias mais altasem todas as areas. No entanto, a hipotese de igualdade de genero deve ser rejeitada apenas para a subescala Memoria no ITP. 3. O genero nao se mostrou significativo em nenhum subteste da BAICI, incluindo as habilidades criativas verbais e figurais. O mesmo foi verificado com o TNVRI reforcando a hipotese de nao existencia de diferenca cognitiva significativa entre os generos. 4. Houve diversas correlacao entre os subtestes da BAICI. A mais alta delas foi entre o subteste memoria visual e indice cognitivo total. Quanto as evidencias de validade por forma de criterio externo entre BAICI e TNVRI, percebeu-se haver correlacao significativa somente entre o subteste rapidez de raciocinio. Os valores de alfa de Cronbach foram 0,83 e 0,75 para o ITP e BAICI, demonstrando a precisao dos resultados encontrados. Atraves de uma analise qualitativa/comparativa foram identificados estudantes que pontuaram acima da media nos instrumentos psicologicos, porem nao identificados por seus professores. Conclui-se que a educacao deve atentar para a capacitacao de professores a fim de que estes conhecam as diferentes habilidades presentes na sala de aulas e promovam acoes dirigidas para seu desenvolvimento a partir de procedimentos variados e combinados.

Made available in DSpace on 2016-04-04T18:29:56Z (GMT). No. of bitstreams: 1 Marcelo Gulini Chiodi.pdf: 2654186 bytes, checksum: 8afcc46d0d34b2195ce3af9b190696ab (MD5) Previous issue date: 2012-02-28 / Pontif?cia Universidade Cat?lica de Campinas / The study on how the different intellectual abilities interact and operate has always aroused man's curiosity due to his need to explain individual differences in the use of information. In this sense, this paper aims to adapt and validate the ten subtests that make up the extended version of the Woodcock-Johnson III Cognitive Abilities Battery (WJ-III Extended) taking into account the Brazilian reality. To this end, we developed four different studies: 1 - Adaptation of the battery (translation, creation and adaptation of items to the Brazilian reality); 2 - Convergent validation by comparing the results of the WJ-III Standard Battery with the Extended version; 3 and 4 - Validation of convergent criteria by comparing the results of two clinical groups, i.e., children diagnosed with Benign Childhood Epilepsy with Centrotemporal Spikes (BCECS) and children diagnosed with Attention Deficit and Hyperactivity Disorder (ADHD). To perform study 2, convergent validation, we evaluated 70 public primary and secondary school children, 43 male and 27 female, aged between 7 and 12. The obtained results were analyzed using Pearson's correlation and a Variance Analysis regarding sex and age of each instrument. Significant correlations were found between the total scores of the expanded WJ-III version and total scores of the standard WJ-III version (0.80), as well as between the subtests which assess Crystallized Intelligence (Gc) of both the expanded and the standard WJ-III (Gc) (0.77). Significant correlations were also observed when we compared the subtests used to assess other skills of both versions of the WJ-III battery (0.73). The Age variable differed significantly in both the expanded and the standard version, whereas the influence of the Sex X Age variable was only significant in the WJ-III standard version. To perform studies 3 and 4 that validated convergent criteria, we analyzed 21 children diagnosed with BCECS and 20 children diagnosed with ADHD aged between 7 and 12 of both sexes. The two clinical groups were matched with children without neurological disorders of the same age and sex. Information obtained in the tests was analyzed by means of a Variance Analysis for group, sex and age. The results of study 3 showed a lower performance of all evaluated skills in the BCECS group compared to the performance of children without neurological disorders. Regarding Study 4, the ADHD children group also showed lower performance in all skills when compared to the control group. Those data demonstrate the convergent validity between the Extended WJ-III and the Standard WJ-III, as well as the convergent criteria validity by differentiating two clinical groups. This could contribute to a more detailed diagnosis of the different cognitive abilities and widen the range of instruments used for intellectual evaluation. / O estudo da intera??o e funcionamento das diferentes habilidades intelectuais sempre despertou curiosidade devido ? necessidade do ser humano de esclarecer as diferen?as individuais no uso das informa??es. Neste sentido, o presente trabalho prop?s a adaptar e validar, para a realidade brasileira, os dez subtestes que comp?em a vers?o Ampliada da Bateria de Habilidades Cognitivas Woodcock-Johnson III (WJ-III Ampliada). Para a realiza??o deste projeto foram desenvolvidos 4 diferentes estudos: 1- adapta??o da bateria (tradu??o, cria??o e adapta??o de itens para a realidade brasileira); 2- validade convergente, comparando os resultados da bateria WJ-III Padr?o com a Ampliada; 3 e 4 - validade de crit?rio tipo concorrente, comparando os resultados de dois grupos cl?nicos, crian?as diagnosticadas com Epilepsia Benigna da Inf?ncia com Pontas centro-temporais (EBICT) e crian?as com o diagn?stico de Transtorno do D?ficit de Aten??o e Hiperatividade (TDAH). Para o estudo 2 de validade convergente, foram avaliadas 70 crian?as de escola p?blica do Ensino Fundamental e M?dio, sendo 43 do sexo masculino e 27 do sexo feminino, com faixa et?ria entre 7 e 12 anos. Os resultados obtidos foram analisados segundo a correla??o de Pearson e An?lise da Vari?ncia entre sexo e idade para cada instrumento. Foram encontradas correla??es significativas entre as pontua??es totais da WJ-III Ampliada e as pontua??es totais na WJ-III vers?o Padr?o de (0,80), assim como, entre os subtestes que avaliam Intelig?ncia Cristalizada (Gc) da WJ-III Ampliada com a WJ-III Padr?o (Gc) (0,77). Tamb?m foram observadas correla??es significativas quando relacionados os subtestes que avaliam as demais habilidades de ambas as vers?es da Bateria WJ-III (0,73). Houve diferen?a significativa para a vari?vel Idade tanto na vers?o Ampliada quanto na vers?o Padr?o. J? a influ?ncia da vari?vel Sexo X Idade foi significativa apenas na vers?o Padr?o da WJ-III. Com rela??o aos estudos 3 e 4 de validade de crit?rio do tipo concorrente, foram estudadas 21 crian?as diagnosticadas com EBICT e 20 diagnosticadas com TDAH, com faixa et?ria entre 7 e 12 anos e de ambos os sexos. Os dois grupos cl?nicos foram pareados por crian?as de mesma idade, sexo e diagnosticadas sem dist?rbios neurol?gicos. As informa??es obtidas nos testes foram analisadas segundo a An?lise de Vari?ncia entre grupo, sexo e idade. Os resultados do estudo 3 apontaram para um desempenho inferior em todas as habilidades avaliadas no grupo EBICT em compara??o ao desempenho de crian?as diagnosticadas sem dist?rbios neurol?gicos. No estudo 4 o grupo de crian?as diagnosticadas com TDAH tamb?m apresentou desempenho inferior em todas as habilidades ao comparar com o desempenho do grupo controle. Portanto, tais dados indicam que a Bateria WJ-III vers?o Ampliada possui validade convergente com a WJ-III vers?o Padr?o e validade de crit?rio tipo concorrente ao diferenciar dois grupos cl?nicos, podendo assim contribuir para um diagn?stico mais detalhado das v?rias habilidades cognitivas e enriquecer ainda mais as possibilidades de instrumentos para avalia??o intelectual.

Submitted by PPG Ci?ncia da Computa??o (ppgcc@pucrs.br) on 2018-09-03T14:11:33Z No. of bitstreams: 1 WILLIAN EDUARDO BECKER_DIS.pdf: 2142751 bytes, checksum: e6501a586bb81f7cbad7fa5ef35d32f2 (MD5) / Approved for entry into archive by Sheila Dias (sheila.dias@pucrs.br) on 2018-09-04T14:43:25Z (GMT) No. of bitstreams: 1 WILLIAN EDUARDO BECKER_DIS.pdf: 2142751 bytes, checksum: e6501a586bb81f7cbad7fa5ef35d32f2 (MD5) / Made available in DSpace on 2018-09-04T14:57:29Z (GMT). No. of bitstreams: 1 WILLIAN EDUARDO BECKER_DIS.pdf: 2142751 bytes, checksum: e6501a586bb81f7cbad7fa5ef35d32f2 (MD5) Previous issue date: 2017-11-24 / Nowadays, the use of social media has become a daily activity of our society. The huge and uninterrupt flow of information in these spaces opens up the possibility of exploring this data in different ways. Sentiment Analysis (SA) is a task that aims to obtain knowledge about the polarity of a given text relying on several techniques of Natural Language Processing, with most of solutions dealing with only one language at a time. However, approaches that are not restricted to explore only one language are more related to extract the whole knowledge and possibilities of these data. Recent approaches based on Machine Learning propose to solve SA by using mainly Deep Learning Neural Networks have obtained good results in this task. In this work is proposed three Convolutional Neural Network architectures that deal with multilingual Twitter data of four languages. The first and second proposed models are characterized by the fact they require substantially less learnable parameters than other considered baselines while are more accurate than several other Deep Neural architectures. The third proposed model is able to perform a multitask classification by identifying the polarity of a given sentences and also its language. This model reaches an accuracy of 74.43% for SA and 98.40% for Language Identification in the four-language multilingual dataset. Results confirm that proposed model is the best choice for both sentiment and language classification by outperforming the considered baselines. / A utiliza??o de redes sociais tornou-se uma atividade cotidiana na sociedade atual. Com o enorme, e ininterrupto, fluxo de informa??es geradas nestes espa?os, abre-se a possibilidade de explorar estes dados de diversas formas. A An?lise de Sentimento (AS) ? uma tarefa que visa obter conhecimento sobre a polaridade das mensagens postadas, atrav?s de diversas t?cnicas de Processamento de Linguagem Natural, onde a maioria das solu??es lida com somente um idioma de cada vez. Entretanto, abordagens que n?o restringem se a explorar somente uma l?ngua, est?o mais pr?ximas de extra?rem todo o conhecimento e possibilidades destes dados. Abordagens recentes baseadas em Aprendizado de M?quina prop?em-se a resolver a AS apoiando-se principalmente nas Redes Neurais Profundas (Deep Learning), as quais obtiveram bons resultados nesta tarefa. Neste trabalho s?o propostas tr?s arquiteturas de Redes Neurais Convolucionais que lidam com dados multi-linguais extra?dos do Twitter contendo quatro l?nguas. Os dois primeiros modelos propostos caracterizam-se pelo fato de possu?rem um total de par?metros muito menor que os demais baselines considerados, e ainda assim, obt?m resultados superiores com uma boa margem de diferen?a. O ?ltimo modelo proposto ? capaz de realizar uma classifica??o multitarefa, identificando a polaridade das senten?as e tamb?m a l?ngua. Com este ?ltimo modelo obt?m-se uma acur?cia de 74.43% para AS e 98.40% para Identifica??o da L?ngua em um dataset com quatro l?nguas, mostrando-se a melhor escolha entre todos os baselines analisados.

Submitted by PPG Direito (ppgdir@pucrs.br) on 2018-10-23T19:51:22Z No. of bitstreams: 1 DIEGO_LOSADA_VIEITEZ_DES .pdf: 1066789 bytes, checksum: d26ca50a83b0764e19484e57a4098399 (MD5) / Approved for entry into archive by Sheila Dias (sheila.dias@pucrs.br) on 2018-10-25T11:53:53Z (GMT) No. of bitstreams: 1 DIEGO_LOSADA_VIEITEZ_DES .pdf: 1066789 bytes, checksum: d26ca50a83b0764e19484e57a4098399 (MD5) / Made available in DSpace on 2018-10-25T12:08:41Z (GMT). No. of bitstreams: 1 DIEGO_LOSADA_VIEITEZ_DES .pdf: 1066789 bytes, checksum: d26ca50a83b0764e19484e57a4098399 (MD5) Previous issue date: 2018-08-14 / Courts of Accounts have been overseeing public policies through perform audits examining the performance of programs, and also, in parallel and additionally, through traditional compliance audits of isolated administrative acts and budgetary aspects. Its importance notwithstanding, it is possible to observe that such control measures have reduced effectiveness for, in good measure, two reasons: a) still relatively distant and less synergistic relationships between control agencies, overseen administration and society; b) impossibility of, without support of proper tools, analyzing the vast universe of relevant data thay is now being registered due to technological advances. For these reasons, this research analyses the outline and characteristics of possible applications of Govtechs, technological solutions based in post-gerencialism models of public management and in the state of art of informational systems, for the control public policies by Courts of Accounts. Likewise, possible perspectives of integration between interested parties in public policies control are also examined. The conclusion is that, if the matter of full public sharing of data bases is overcome, GovTechs are powerful solutions to integrate action between agents and to data analysis, including by artificial intelligence, with the potential of increase the effectiveness of control measures, especially in the context of a society with increasing complex and sophisticated technologies. / Os Tribunais de Contas v?m realizando controle de pol?ticas p?blicas mediante auditorias operacionais focadas em avaliar o desempenho de programas, e tamb?m, paralelamente e complementarmente, pelas tradicionais auditorias de conformidade de atos administrativos isolados e de aspectos or?ament?rios. Apesar de sua import?ncia, ? poss?vel observar que tais a??es de controle ainda apresentam uma efetividade reduzida por, em grande parte, duas quest?es: a) rela??es relativamente distantes e pouco sin?rgicas entre ?rg?os de controle, entes fiscalizados e sociedade; b) impossibilidade de, sem ferramentas adequadas, analisar o vasto universo de dados relevantes que passaram a ser registrados com o avan?o tecnol?gico. Diante disso, esta pesquisa examina os contornos e caracter?sticas de poss?veis aplica??es das GovTechs, solu??es tecnol?gicas baseadas em modelos colaborativos e dial?gicos de Administra??o P?blica e no estado da arte dos sistemas informacionais, para o controle de pol?ticas p?blicas por Tribunais de Contas. Igualmente, s?o examinadas perspectivas de integra??o entre os atores interessados no controle de pol?ticas p?blicas. A conclus?o ? de que, superado o entrave do compartilhamento pleno de bancos de dados, as GovTechs s?o poderosas solu??es para a atua??o integrada entre agentes e para a an?lise dos dados, inclusive por intelig?ncia artificial, com potencial de aumentar a efetividade das a??es de controle, especialmente no contexto de uma sociedade cada vez tecnologicamente complexa e sofisticada.

Made available in DSpace on 2016-04-04T18:36:27Z (GMT). No. of bitstreams: 1 Julio Cesar Alvarenga 1.pdf: 672554 bytes, checksum: f0a7fa66fc0f0f781e607655acc53241 (MD5) Previous issue date: 2006-02-17 / Due to the growing needs of organizational changes, caused mainly by the globalization and for the progress of the Information Technologies (IT), and the consequent appearance of an enormous amount of information that needs to be managed correctly by the organizations, a bibliographical study was developed, followed by the application and questionnaire analysis in the S?o Camilo - Esp?rito Santo Academical Center. The research has had as objective the institution administrative sections and it was answered by leaders and their subordinates of these sections, aiming at an analysis of the results where was possible to identify the need of adjustments in the information politics of the University, from the qualification of the responsible for managing the information until the improvement of the Information Systems. Finally, based on those needs, the study proposed suggestions, leaning for the Competitive Intelligence, of improvement of information administration of the researched institution. / Diante das necessidades crescentes de mudan?as organizacionais, causadas principalmente pela globaliza??o e pelo avan?o das Tecnologias de Informa??o (TI), e do conseq?ente surgimento de uma quantidade enorme de informa??es que precisam ser gerenciadas corretamente pelas organiza??es, foi desenvolvido um estudo bibliogr?fico, seguido da aplica??o e an?lise de question?rio no Centro Universit?rio S?o Camilo Esp?rito Santo. A pesquisa teve como alvo os setores administrativos da institui??o e foi respondida por l?deres e liderados destes setores, objetivando uma an?lise dos resultados onde foi poss?vel identificar a necessidade de ajustes na pol?tica informacional da Institui??o de Ensino Superior (IES), desde a qualifica??o dos respons?veis por gerir as informa??es at? a melhoria dos Sistemas de informa??o. Por fim, com base nessas necessidades, o estudo prop?s sugest?es, apoiadas pela Intelig?ncia Competitiva, de melhoria da gest?o da informa??o na IES pesquisada.

Made available in DSpace on 2014-12-17T15:47:48Z (GMT). No. of bitstreams: 1 DanielSAA.pdf: 691771 bytes, checksum: c2a3333a69e8d426409687ac8cfac27f (MD5) Previous issue date: 2008-11-11 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The use of clustering methods for the discovery of cancer subtypes has drawn a great deal of attention in the scientific community. While bioinformaticians have proposed new clustering methods that take advantage of characteristics of the gene expression data, the medical community has a preference for using classic clustering methods. There have been no studies thus far performing a large-scale evaluation of different clustering methods in this context. This work presents the first large-scale analysis of seven different clustering methods and four proximity measures for the analysis of 35 cancer gene expression data sets. Results reveal that the finite mixture of Gaussians, followed closely by k-means, exhibited the best performance in terms of recovering the true structure of the data sets. These methods also exhibited, on average, the smallest difference between the actual number of classes in the data sets and the best number of clusters as indicated by our validation criteria. Furthermore, hierarchical methods, which have been widely used by the medical community, exhibited a poorer recovery performance than that of the other methods evaluated. Moreover, as a stable basis for the assessment and comparison of different clustering methods for cancer gene expression data, this study provides a common group of data sets (benchmark data sets) to be shared among researchers and used for comparisons with new methods / O uso de t?cnicas de agrupamento na descoberta de subtipos de c?ncer tem atra?do grande aten??o da comunidade cient?fica. Enquanto bioinformatas prop?em novas t?cnicas de agrupamento que levam em considera??o caracter?sticas dos dados de express?o g?nica, a comunidade m?dica prefere utilizar as t?cnicas cl?ssicas de agrupamento. De fato, n?o existem trabalhos na literatura que realizam uma avalia??o em grande escala de t?cnicas de agrupamento nesse contexto. Diante disso, este trabalho apresenta o primeiro estudo em grande escala de sete t?cnicas de agrupamento e quatro medidas de proximidade para a an?lise de 35 conjuntos de dados de express?o g?nica. Mais especificamente, os resultados mostram que a t?cnica mistura finita de gaussianas, seguida pelo k-means, apresentam os melhores resultados em termos de recupera??o da estrutura natural dos dados. Esses m?todos tamb?m apresentam a menor diferen?a entre o n?mero real de classes e o n?mero de grupos presente na melhor parti??o. Al?m disso, os m?todos de agrupamento hier?rquico, que v?m sendo bastante utilizados pela comunidade m?dica, apresentaram os piores resultados quando comparados com os outros m?todos investigados. Este trabalho tamb?m apresenta, como uma refer?ncia est?vel para a avalia??o e compara??o de diferentes algoritmos de agrupamento para dados de express?o g?nica de c?ncer, um conjunto de bases de dados (benchmark data sets) que pode ser compartilhado entre pesquisadores e usado na compara??o de novos m?todos

Made available in DSpace on 2014-12-17T15:47:59Z (GMT). No. of bitstreams: 1 MarcilioOM_DISSERT.pdf: 2842138 bytes, checksum: a048e635c669d6652fa350ab1d82eadc (MD5) Previous issue date: 2012-09-05 / There is a need for multi-agent system designers in determining the quality of systems in the earliest phases of the development process. The architectures of the agents are also part of the design of these systems, and therefore also need to have their quality evaluated. Motivated by the important role that emotions play in our daily lives, embodied agents researchers have aimed to create agents capable of producing affective and natural interaction with users that produces a beneficial or desirable result. For this, several studies proposing architectures of agents with emotions arose without the accompaniment of appropriate methods for the assessment of these architectures. The objective of this study is to propose a methodology for evaluating architectures emotional agents, which evaluates the quality attributes of the design of architectures, in addition to evaluation of human-computer interaction, the effects on the subjective experience of users of applications that implement it. The methodology is based on a model of well-defined metrics. In assessing the quality of architectural design, the attributes assessed are: extensibility, modularity and complexity. In assessing the effects on users' subjective experience, which involves the implementation of the architecture in an application and we suggest to be the domain of computer games, the metrics are: enjoyment, felt support, warm, caring, trust, cooperation, intelligence, interestingness, naturalness of emotional reactions, believabiliy, reducing of frustration and likeability, and the average time and average attempts. We experimented with this approach and evaluate five architectures emotional agents: BDIE, DETT, Camurra-Coglio, EBDI, Emotional-BDI. Two of the architectures, BDIE and EBDI, were implemented in a version of the game Minesweeper and evaluated for human-computer interaction. In the results, DETT stood out with the best architectural design. Users who have played the version of the game with emotional agents performed better than those who played without agents. In assessing the subjective experience of users, the differences between the architectures were insignificant / H? uma necessidade dos projetistas de sistemas multiagentes em determinar a qualidade dos sistemas logo nas fases iniciais do processo de desenvolvimento. As arquiteturas dos agentes tamb?m fazem parte do projeto desses sistemas, e por isso tamb?m precisam ter sua qualidade avaliada. Motivados pelo importante papel que as emo??es desempenham em nossas vidas di?rias, pesquisadores de agentes incorporados t?m buscado criar agentes capazes de ter intera??o afetiva e natural com usu?rios, de forma que produza algum resultado ben?fico ou desej?vel. Para isso, v?rios estudos propondo arquiteturas de agentes com emo??es foram surgindo sem o acompanhamento dos devidos m?todos necess?rios para avalia??o dessas arquiteturas. Assim, o objetivo principal deste trabalho ? propor uma metodologia de avalia??o de arquiteturas de agentes emocionais, que avalia os atributos de qualidade do projeto das arquiteturas, al?m da avalia??o da intera??o humano computador, sobre os efeitos na experi?ncia subjetiva dos usu?rios de aplica??es que as implementam. A metodologia ? baseada em um modelo de m?tricas bem definido. Na avalia??o da qualidade do projeto arquitetural, os atributos avaliados s?o: extensibilidade, modularidade e complexidade. Na avalia??o dos efeitos na experi?ncia subjetiva dos usu?rios, que envolve a implementa??o das arquiteturas em uma aplica??o e que sugerimos ser no dom?nio de jogos de computador, as m?tricas s?o: agradabilidade, ajuda percebida, anima??o, carinho percebido, confian?a, coopera??o, intelig?ncia, interesse, naturalidade nas rea??es emocionais, realidade do comportamento, redu??o de frustra??o e simpatia, al?m do tempo m?dio e m?dia de tentativas. Realizamos experimentos com esta metodologia e avaliamos cinco arquiteturas de agentes emocionais: BDIE, DETT, Camurri-Coglio, EBDI, Emotional- BDI. Duas das arquiteturas, BDIE e EBDI, foram implementadas numa vers?o do jogo Campo Minado e avaliadas quanto ? intera??o humano computador. Nos resultados, a DETT se destacou com o melhor projeto arquitetural. Os usu?rios que jogaram a vers?o do jogo com agentes emocionais tiveram um melhor desempenho do que os que jogaram sem agentes. Na avalia??o da experi?ncia subjetiva dos usu?rios, as diferen?as entre as arquiteturas foram pouco relevantes.

Made available in DSpace on 2014-12-17T14:55:25Z (GMT). No. of bitstreams: 1 GaudioVLB_Capa_ate_pag17.pdf: 9585869 bytes, checksum: 2c08182891dcc8649365bc6bb452f431 (MD5) Previous issue date: 2004-12-03 / This work proposes the specification of a new function block according to Foundation Fieldbus standards. The new block implements an artificial neural network, which may be useful in process control applications. The specification includes the definition of a main algorithm, that implements a neural network, as well as the description of some accessory functions, which provide safety characteristics to the block operation. Besides, it also describes the block attributes emphasizing its parameters, which constitute the block interfaces. Some experimental results, obtained from an artificial neural network implementation using actual standard functional blocks on a laboratorial FF network, are also shown, in order to demonstrate the possibility and also the convenience of integrating a neural network to Fieldbus devices / Esta disserta??o apresenta a especifica??o de um novo Bloco Funcional de acordo com o padr?o Foundation Fieldbus, implementando uma Rede Neural Artificial ?til em diversas aplica??es de controle de processos. Essa especifica??o inclui a defini??o do algoritmo central do bloco, que implementa uma RN, e das fun??es acess?rias de forma a prover seguran?a de opera??o, al?m da descri??o dos atributos do bloco, com ?nfase nos par?metros, que formam as interfaces do objeto. Apresentam-se tamb?m os experimentos que foram realizados a partir de uma rede FF de laborat?rio, em que se empregaram apenas blocos padronizados j? existentes, a fim de se verificar a possibilidade e a conveni?ncia de integra??o de algoritmos de RN em dispositivos de campo FF

Made available in DSpace on 2014-12-17T14:55:57Z (GMT). No. of bitstreams: 1 PedroBL.pdf: 595050 bytes, checksum: f0ab25c9935d2925102dfa8c9a811a4b (MD5) Previous issue date: 2005-12-16 / This work presents an analysis of the control law based on an indirect hybrid scheme using neural network, initially proposed for O. Adetona, S. Sathanathan and L. H. Keel. Implementations of this control law, for a level plant of second order, was resulted an oscillatory behavior, even if the neural identifier has converged. Such results had motivated the investigation of the applicability of that law. Starting from that, had been made stability mathematical analysis and several implementations, with simulated plants and with real plants, for analyze the problem. The analysis has been showed the law was designed being despised some components of dynamic of the plant to be controlled. Thus, for plants that these components have a significant influence in its dynamic, the law tends to fail / Este trabalho apresenta uma an?lise da lei de controle baseada em um esquema h?brido indireto usando rede neural, proposto inicialmente por O. Adetona, S. Sathanathan e L. H. Keel. Implementa??es dessa lei de controle, para uma planta de n?vel de segunda ordem, resultaram em um comportamento oscilat?rio, mesmo com a converg?ncia do identificador neural. Tais resultados motivaram a investiga??o da aplicabilidade dessa lei. A partir disso, foram feitas an?lises matem?ticas de estabilidade e diversas implementa??es, com plantas simuladas e com plantas reais, com a finalidade de se analisar o problema. A an?lise mostrou que a lei foi desenvolvida desprezando-se certos componentes da din?mica da planta a ser controlada. Sendo assim, para plantas onde esses componentes t?m uma influ?ncia significativa em sua din?mica, a lei tende a falhar

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-01-23T14:13:10Z No. of bitstreams: 1 PhelipeSenaOliveira_TESE.pdf: 2369727 bytes, checksum: 2bb1dad07260b4efd645c7028636e62f (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-01-24T15:05:44Z (GMT) No. of bitstreams: 1 PhelipeSenaOliveira_TESE.pdf: 2369727 bytes, checksum: 2bb1dad07260b4efd645c7028636e62f (MD5) / Made available in DSpace on 2018-01-24T15:05:44Z (GMT). No. of bitstreams: 1 PhelipeSenaOliveira_TESE.pdf: 2369727 bytes, checksum: 2bb1dad07260b4efd645c7028636e62f (MD5) Previous issue date: 2017-02-06 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / As novas configura??es de dispositivos e circuitos de micro-ondas resulta em aumento de complexidade nos processos de desenvolvimento, particularmente nos casos de s?ntese. Antenas e superf?cies seletivas de frequ?ncia (Frequency Selective Surface - FSS) s?o estruturas muito importantes nos sistemas de comunica??es, que podem ser otimizadas pela atua??o dos algoritmos bioinspirados. Geralmente, para que os algoritmos bioinspirados auxiliem na otimiza??o dessas estruturas ? necess?ria a implementa??o de t?cnicas de an?lise num?rica como o M?todo dos Momentos ou Elementos Finitos. Diante da dificuldade de modelagem das t?cnicas descritas, ? comum a utiliza??o de uma fun??o de estima??o, como as Redes Neurais Artificiais, para substituir a an?lise num?rica. Embora encontre solu??es desejadas, as estima??es s?o realizadas ap?s um processo de treinamento efetuado atrav?s de uma base de dados. Cada estrutura de antena ou FSS exige uma base de dados espec?fica. Este trabalho prop?e uma t?cnica de otimiza??o baseado na utiliza??o de um algoritmo bioinspirado e um framework que realiza a integra??o do algoritmo ao software comercial ANSYS HFSS. O prop?sito ? realizar as simula??es das poss?veis solu??es durante a execu??o do algoritmo bioinspirado, e com isso, evitar o uso de uma base de dados, e assim, tornar a t?cnica eficiente e flex?vel com rela??o ?s altera??es nas estruturas de antenas ou FSS. Outro objetivo original deste trabalho ? a utiliza??o do algoritmo Social Spider Optimization ? SSO para a solu??o de problemas na ?rea de eletromagnetismo aplicado. Para comprovar a efic?cia da t?cnica proposta alguns projetos de antena e FSS s?o otimizados atrav?s de varia??es em seus par?metros estruturais. Os resultados obtidos na otimiza??o dos projetos dos circuitos s?o comparados com outras t?cnicas, tendo sido observado uma boa concord?ncia. / The new settings for devices and microwaves circuits result in an increase of complexity in the processes of development, specially in regards to the process of synthesis. Antennas and Frequency Selective Surfaces (FSS) are primordial in communication systems. Alternatively, these structures may be optimized through the usage of bio-inspired algorithms. Generally, in order for the bio-inspired algorithms to assist in the optimization of FSS structures, it is necessary to implement several numerical analysis techniques, such as the method of moments or finite elements. Because of the difficulty to model such methods, it has been turned common the usage of a point estimation function, such as artificial neural networks, to substitute the numerical analysis. Although these procedures end up encountering desirable solutions, the estimations are done after a training process conducted through a database. Additionally, every FSS antenna demands a specific database. This work proposes an optimization technique that relies on the usage of a bio-inspired algorithm and a framework (that provides the integration between the algorithm and the commercial software ANSS HFSS). The purpose of the work is to do simulations of possible solutions during the execution of the bio-inspired algorithm; therefore, avoiding the usage of the database; and so, make the technique flexible and efficient in relation to altering the antennas? structures or FSS. Furthermore, another objective of this work is the usage of the algorithm, namely Social Spider Optimization - SSO in the search for solutions in the field of applied electromagnetism. In order to prove the efficiency of the proposed techniques, some FSS? and antennas? projects are optimized through the variation of their structural parameters. In conclusion, the results that were obtained through the procedures previously shown, are compared to other techniques, resulting in a satisfying agreement rate.