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Reseach Article

Knowledge Acquisition under Imprecision through Neighborhood Approximation Operators

by Dr.D.Mohanty, Dr.J.K.Mantri, Dr.N.Kalia, B.B.Nayak
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 29 - Number 10
Year of Publication: 2011
Authors: Dr.D.Mohanty, Dr.J.K.Mantri, Dr.N.Kalia, B.B.Nayak
10.5120/3602-5005

Dr.D.Mohanty, Dr.J.K.Mantri, Dr.N.Kalia, B.B.Nayak . Knowledge Acquisition under Imprecision through Neighborhood Approximation Operators. International Journal of Computer Applications. 29, 10 ( September 2011), 1-10. DOI=10.5120/3602-5005

@article{ 10.5120/3602-5005,
author = { Dr.D.Mohanty, Dr.J.K.Mantri, Dr.N.Kalia, B.B.Nayak },
title = { Knowledge Acquisition under Imprecision through Neighborhood Approximation Operators },
journal = { International Journal of Computer Applications },
issue_date = { September 2011 },
volume = { 29 },
number = { 10 },
month = { September },
year = { 2011 },
issn = { 0975-8887 },
pages = { 1-10 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume29/number10/3602-5005/ },
doi = { 10.5120/3602-5005 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:15:24.571775+05:30
%A Dr.D.Mohanty
%A Dr.J.K.Mantri
%A Dr.N.Kalia
%A B.B.Nayak
%T Knowledge Acquisition under Imprecision through Neighborhood Approximation Operators
%J International Journal of Computer Applications
%@ 0975-8887
%V 29
%N 10
%P 1-10
%D 2011
%I Foundation of Computer Science (FCS), NY, USA
Abstract

The notion of rough sets, introduced by Z. Pawlak in 1982, is to capture impreciseness and indiscernibility of objects. The basic assumption of rough set theory is that human knowledge about a universe depends upon their capability to classify its objects. Classifications (or partitions) of a universe and equivalence relations defined on it are known to be interchangeable notions. So, for mathematical reasons, equivalence relations were considered by Pawlak to define rough sets. But in practice, we can get non-equivalence relations, rather than equivalence relations for the study of approximations. In this paper, we find notion of neighborhood systems instead of equivalence relations, proposed by Lin (1988), Chu (1992) and Lin & Yao (1996), for the study of approximation and also we study some properties of 1-neighborhood systems.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Rough sets classifications Neighborhood systems approximation operators Definability Dependency