Feature Transformation
Mostrando 1-12 de 90 artigos, teses e dissertações.
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1. Ontogenetic shape changes and sexual dimorphism in Aegla marginata Bond-Buckup and Buckup, 1994
ABSTRACT A study on relative growth, sexual dimorphism and ontogenetic trajectory was carried out in a population of the aeglidAegla marginata coming from Barrinha River, Iguape River Basin, Tunas do Paraná, Paraná State, Brazil. The size the of morphological sexual maturity was estimated for males and females. The analysis of sexual dimorphism and ontogen
An. Acad. Bras. Ciênc.. Publicado em: 14/05/2018
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2. Hybrid Geoid Model: Theory and Application in Brazil
Determination of the ellipsoidal height by Global Navigation Satellite Systems (GNSS) is becoming better known and used for purposes of leveling with the aid of geoid models. However, the disadvantage of this method is the quality of the geoid models, which degrade heights and limit the application of the method. In order to provide better quality in transfo
An. Acad. Bras. Ciênc.. Publicado em: 2017-09
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3. Comparative Study of Magnetic Properties and Microstructure for As-cast and Square-wave Pulse Current Joule Annealed Wires
We here report on a comparative study of the microstructure and magnetic properties of as-cast and SPCJA-ed Co-based wires for potential sensor applications. Experimental results indicate that both as-cast and SPCJA-ed wires exhibit typical amorphous feature. There also exists the enhanced local ordering degree of atomic arrangement and obvious transformatio
Mat. Res.. Publicado em: 23/10/2015
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4. Fault condition detection for a copper flotation process based on a wavelet multi-scale binary froth image
AbstractConsidering the difficulty of detecting the fault condition of copper flotation in real-time, a new fault condition detection method based on the wavelet multi-scale binary image is proposed. Firstly, the froth gray image is decomposed into approximation sub-images and detailed sub-images by wavelet transformation, whereby the approximation sub-image
Rem: Rev. Esc. Minas. Publicado em: 2015-06
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5. Redução de dimensionalidade usando agrupamento e discretização ponderada para a recuperação de imagens por conteúdo
Neste trabalho, propomos diminuir o gap semântico e os problemas de maldição de dimensionalidade apresentando duas técnicas de préprocessamento do vetor de características com o objetivo de melhorar a recuperação de imagens baseada em conteúdo e sistemas de classificação de imagens: um método de redução de dimensionalidade do vetor de caracter�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/11/2012
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6. A regulação do MIR-10B e do MIR-603 pelas proteínas HMGA tem papel crítico na transformação de células da tireóide
HMGA overexpression, other than to be a feature of human malignant neoplasias, has a causal role in cell transformation. Then, the aim of our study has been to investigate the miRNAs regulated by the HMGA proteins in the process of cell transformation analyzing the miRNA expression profile of v-ras-ki oncogenetransformed thyroid cells expressing or not HMGA
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/08/2012
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7. Método baseado em rotação e projeção otimizadas para a construção de ensembles de modelos / Ensemble method based on optimized rotation and projection
The development of new techniques capable of inducing predictive models with low generalization errors has been a constant in machine learning and other related areas. In this context, the composition of an ensemble of models should be highlighted due to its theoretical and empirical potential to minimize the generalization error. Several methods for buildin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2012
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8. Alinhamento entre gestão do conhecimento e estratégia competitiva: um estudo de caso numa empresa de telecomunicações
Organizations nowadays are faced increasingly with a highly competitive environment, globalization, where the process of constant innovation has charged them a proactive and dynamic behavior, in that they often find themselves forced to anticipate the needs and desires of their customers and many cases establishing and maintaining these in same needs and des
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/08/2011
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9. Ética e metafísica na filosofia de Íris Murdoch : a peregrinação moral em busca do bem
Interpretation of Iris Murdochs moral philosophy. The present dissertation is structured upon three issues correlated in order to propose a general grasp of ethics and metaphysics in Iris Murdochs thought. The issues are: the pluralism of moral visions, the good and the void. The fundamental question, which guides the investigation, is about the possibility
Publicado em: 2010
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10. Caracterização de imagens utilizando redes neurais artificiais
Image representation in Content Based Image Retrieval systems is a fundamental task. The results obtained by these systems strongly depend on the choice of features selected to represent an image. Works in the literature show that intelligent techniques are used to minimize the semantic gap between the limited power of machine interpretation and human subjec
Publicado em: 2009
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11. Oscilador de Dirac: ImplicaÃÃes da violaÃÃo da simetria de Lorentz e da massa dependente da posiÃÃo.
In this work we study the Dirac Oscillator (DO) in a threefold way. In the first way, we study DO with Lorentz symmetry violation. This violation is implemented through vectorial and an axial terms. We realize a non-relativistic limit and we obtain that the background vector field does not modify the energy spectrum. However, in the case of the background ax
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/07/2008
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12. A ação social dos Baháís no Brasil
This work brings the mainly theme the religion Bahá i, more specifically the social action of it in Brazil, with the objective to check which is the space that the Bahá i faith occupies in Brazilian society. To get this intention, our study based itself in first moment with Max Weber, Clifford Geertz, Peter Beger, looking for the understand of religious ph
Publicado em: 2008