Strategy Problem Solving
Mostrando 13-24 de 45 artigos, teses e dissertações.
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13. Active-set strategy in Powell's method for optimization without derivatives
In this article we present an algorithm for solving bound constrained optimization problems without derivatives based on Powell's method [38] for derivative-free optimization. First we consider the unconstrained optimization problem. At each iteration a quadratic interpolation model of the objective function is constructed around the current iterate and this
Computational & Applied Mathematics. Publicado em: 2011
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14. Solving the dual subproblem of the Method of Moving Asymptotes using a trust-region scheme
An alternative strategy to solve the subproblems of the Method of Moving Asymptotes (MMA) is presented, based on a trust-region scheme applied to the dual of the MMA subproblem. At each iteration, the objective function of the dual problem is approximated by a regularized spectral model. A globally convergent modification to the MMA is also suggested, in whi
Computational & Applied Mathematics. Publicado em: 2011
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15. @prender a @prender : na busca de processos metacognitivos com o uso das TIC
The teacher may surprised to find out that students develop a series of pipes, when he offers learning situations on day-to-day classroom. Some, that do not seem very logical, are prove effective, while others, seemingly more appropriate, have confusing results. How to understand what students do or wanted to do? How to realize their true learning? In this c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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16. Robótica educacional e resolução de problemas : uma abordagem microgenética da construção do conhecimento
A presente dissertação objetivou investigar as estratégias cognitivas de resolução de problemas em Robótica Educacional (RE) utilizando o kit semiestruturado LEGO Mindstorms® 9793 e programação RoboLab®. Com base na teoria da Microgênese Cognitiva, de Bärbel Inhleder, foram investigadas as estratégias cognitivas do sujeito psicológico para reso
Publicado em: 2011
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17. Modelagem matemática na previsão de colheita de bananeira: regressão linear múltipla x redes neurais artificiais / Mathematical modeling to predict crop of banana: multiple regression x neural networks
One of the barriers relevant to the banana crop in Brazil is the lack of productive commercial varieties with adequate size, resistant to major pests and diseases and adapted to different ecosystems. The development of cultivars is the strategy for solving this problem through breeding programs, as well as its characterization and evaluation in areas of prod
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/12/2010
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18. Essays on decision sciences: exploring cognition, information processing, and complexity
This thesis provides three original contributions to the field of Decision Sciences. The first contribution explores the field of heuristics and biases. New variations of the Cognitive Reflection Test (CRT--a test to measure "the ability or disposition to resist reporting the response that first comes to mind"), are provided. The original CRT (S. Frederick [
Publicado em: 30/03/2010
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19. ESTUDO SOBRE A RELAÇÃO ENTRE O SIGNIFICADO DO TRABALHO E COPING PARA JOVENS ADULTOS / STUDY OF THE RELATIONSHIP BETWEEM THE MEANING OF WORK AND COPING FOR YOUNG ADULTS
This research aimed at analyzing the relationship among the meaning attributed to work, the strategies used to cope with stressful situations, some demographic variables, types of problem, and origin of adverse conditions. The sample was composed by 249 young adults from a college located in the Midwestern Region of Brazil, with mean age of 27 years (SD = 4.
Publicado em: 2010
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20. A estratégia didática de resolução de problemas na formação de professores de química
Neste trabalho é apresentada uma experiência desenvolvida durante a formação inicial de professores no curso de Licenciatura em Química da Universidade Federal do Rio Grande do Norte (UFRN). A intervenção se deu em duas turmas no contexto de uma disciplina da estrutura curricular com dezenove licenciandos de química. A pesquisa traz elementos da abor
Publicado em: 2010
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21. Programa de habilidades sociais profissionais para pessoas com deficiência física desempregadas : necessidades, processo e efeitos / A professional social skills program for unemployed people with physical disability: needs, process and effects
Aiming to promote better employability conditions among people with physical disability, the literature review indicates the improvement of the social skills repertoire. Social skills programs can contribute to an individuals entry, adaptation and career development in the job market. The purpose of the current research was to assess the need, the process an
Publicado em: 2010
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22. On the use of the Spectral Projected Gradient method for Support Vector Machines
In this work we study how to solve the SVM optimization problem by using the Spectral Projected Gradient (SPG) method with three different strategies for computing the projection onto the constrained set. One of the strategies is based on Dykstra's alternating projection algorithm since there is not a mathematical equation for the projection onto the whole c
Computational & Applied Mathematics. Publicado em: 2009
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23. Cooperation or competition? Assessment of a strategy to play Teaching Biology for Secondary Education and Higher Education / Cooperação ou competição? Avaliação de uma estratégia lúdica de ensino de Biologia para o Ensino Médio e o Ensino Superior
Games and other playful activities may help to create favorable situations for the acquisition of knowledge. However, most of the games have the competitive component . An alternative for competition is the use of cooperative games, which favor the game with each other rather than against each other. In the present work, we comparatively evaluated a problem-
Publicado em: 2009
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24. Relaxações e método de decomposição para alguns problemas de localização de facilidades modelados em grafos / Relaxations and decomposition approach for some facility location problems modeled by graphs
Despite the great advances in computational equipment and the best known techniques for solving combinatorial optimization problems, it is not always possible to find the optimum solution to some practical facility location problems in a reasonable computational time, due to their size and classification issues. This thesis explores the representation of pro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/10/2008