Aplicação dos conceitos da Teoria dos Conjuntos Aproximados no tratamento da indiscernibilidade

Aplicação dos conceitos da Teoria dos Conjuntos Aproximados no tratamento da indiscernibilidade

The Rough Set Theory was proposed by Pawlak, in 1982, as a mathematical model to represent knowledge and to treat uncertainty. The rough sets can be considered as sets with hazy frontiers, i.e., which can not be precisely characterized, using the available features. Rough set is a fundamental type o...

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Main Author: Renato José Sassi
Format: Article
Language:Portuguese
Published: Universidade Nove de Julho 2010-01-01
Series:Exacta
Online Access:http://www.redalyc.org/articulo.oa?id=81015201010
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spelling doaj-7f063a50ca924d2395504ebf77b7ad9c2020-11-25T00:10:50ZporUniversidade Nove de JulhoExacta1678-54281983-93082010-01-01818998Aplicação dos conceitos da Teoria dos Conjuntos Aproximados no tratamento da indiscernibilidadeRenato José SassiThe Rough Set Theory was proposed by Pawlak, in 1982, as a mathematical model to represent knowledge and to treat uncertainty. The rough sets can be considered as sets with hazy frontiers, i.e., which can not be precisely characterized, using the available features. Rough set is a fundamental type of uncertainty, the indiscernibility. Indiscernibility arises when it is not possible to distinguish elements from the same set, and represents the situation in which these components seem to be only one element. The objective of this paper was the application of the theory's main concepts to reduce the uncertainty in a database. The achieved results are satisfactory, which confirms that the rough set is a theory with a consistent mathematics of good theoretical basis and that can be used in the uncertainty treatment.http://www.redalyc.org/articulo.oa?id=81015201010
collection DOAJ
language Portuguese
format Article
sources DOAJ
author Renato José Sassi
spellingShingle Renato José Sassi
Aplicação dos conceitos da Teoria dos Conjuntos Aproximados no tratamento da indiscernibilidade
Exacta
author_facet Renato José Sassi
author_sort Renato José Sassi
title Aplicação dos conceitos da Teoria dos Conjuntos Aproximados no tratamento da indiscernibilidade
title_short Aplicação dos conceitos da Teoria dos Conjuntos Aproximados no tratamento da indiscernibilidade
title_full Aplicação dos conceitos da Teoria dos Conjuntos Aproximados no tratamento da indiscernibilidade
title_fullStr Aplicação dos conceitos da Teoria dos Conjuntos Aproximados no tratamento da indiscernibilidade
title_full_unstemmed Aplicação dos conceitos da Teoria dos Conjuntos Aproximados no tratamento da indiscernibilidade
title_sort aplicação dos conceitos da teoria dos conjuntos aproximados no tratamento da indiscernibilidade
publisher Universidade Nove de Julho
series Exacta
issn 1678-5428
1983-9308
publishDate 2010-01-01
description The Rough Set Theory was proposed by Pawlak, in 1982, as a mathematical model to represent knowledge and to treat uncertainty. The rough sets can be considered as sets with hazy frontiers, i.e., which can not be precisely characterized, using the available features. Rough set is a fundamental type of uncertainty, the indiscernibility. Indiscernibility arises when it is not possible to distinguish elements from the same set, and represents the situation in which these components seem to be only one element. The objective of this paper was the application of the theory's main concepts to reduce the uncertainty in a database. The achieved results are satisfactory, which confirms that the rough set is a theory with a consistent mathematics of good theoretical basis and that can be used in the uncertainty treatment.
url http://www.redalyc.org/articulo.oa?id=81015201010
work_keys_str_mv AT renatojosesassi aplicacaodosconceitosdateoriadosconjuntosaproximadosnotratamentodaindiscernibilidade
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