Influências de Gerações Eólicas Interfaceadas por Inversores na Operação das Funções de Proteção Direcionais e de Seleção de Fase

Operadores de Seleção por Similaridade para Sistemas de Gerenciamento de Bases de Dados Relacionais

Searching operations in complex datasets are performed using comparison criteria based on similarity because equality comparison are barely useful and those based on the ordering relationships cannot be applied due to the nature of these datasets. There are two basic operators for similarity queries: Range Query and k-Nearest Neighbor Query. A great amount of research was done to achieve effect...

Processo de seleção de sistemas integrados: possibilidades de modelagem com base na análise de decisões

Uso de correntropia na generalização de funções cicloestacionárias e aplicações para a extração de características de sinais modulados

Information extraction is a frequent and relevant problem in digital signal processing. In the past few years, different methods have been utilized for the parameterization of signals and the achievement of efficient descriptors. When the signals possess statistical cyclostationary properties, the Cyclic Autocorrelation Function (CAF) and the Spectral Cyclic Density (SCD) can be used to extract...

Uso de Algoritmos Genéticos na Seleção de Atributos para Classificação de Regiões

The technological advances about remote sensing allows a better identification of urban targets in the images. The aim of this work is to classify automatically the urban spaces applying feature extraction and selection techniques, in high resolution images. To classify the road network and others urban components, some shape features that permit to recognize different objects with analogous sp...

Seleção Automática de Casos de Teste de Regressão Baseada em Similaridade e Valores

Selective retesting techniques based on modifications may select redundant test cases as well as exclude important test cases that exercise critical flows that are not covered by the modifications. To handle this problem, this work presents a new technique based on modifications that consider the value of each test case and the similarity among the test cases in order to select the most importa...