Journal ArticleDOI
Data analysis based on discernibility and indiscernibility
TLDR
The consideration of the matrix- counterpart of relations, and the relation-counterpart of matrices, brings more insights into rough set theory.About:
This article is published in Information Sciences.The article was published on 2007-11-15. It has received 128 citations till now.read more
Citations
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Journal ArticleDOI
Tongue shape classification by geometric features
TL;DR: Experimental results show that the proposed shape correction method reduces the deflection of tongue shapes and that the shape classification approach, tested on a total of 362 tongue samples, achieved an accuracy of 90.3%, making it more accurate than either KNN or LDA.
Journal ArticleDOI
A temporal-spatial composite sequential approach of three-way granular computing
TL;DR: This paper introduces three extensional ideas: temporality- based, spatiality-based, integration-based trisecting-acting-outcome (TAO) frameworks, and presents three fundamental methods for the construction of multilevel composite granular structure.
Journal ArticleDOI
A rough set-based multiple criteria linear programming approach for the medical diagnosis and prognosis
TL;DR: Many experiments show that the RS-MCLP approach is prior to single MCLP model and other traditional classification methods in data mining, and remarkably improve the accuracy of medical diagnosis and prognosis simultaneously.
Journal ArticleDOI
Communication between information systems with covering based rough sets
TL;DR: It is proved that some basic properties of original systems, such as set approximations, attribute reductions, can be reserved under the condition of homomorphisms in both covering information systems and covering decision systems.
Journal ArticleDOI
FRPS: A Fuzzy Rough Prototype Selection method
TL;DR: This work uses fuzzy rough set theory to express the quality of the instances, and uses a wrapper approach to determine which instances to prune and calls it Fuzzy Rough Prototype Selection (FRPS), which performs very well with respect to accuracy.
References
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Book ChapterDOI
The Discernibility Matrices and Functions in Information Systems
Andrzej Skowron,Cecylia Rauszer +1 more
TL;DR: In this article, the authors introduce two notions related to any information system, namely the discernibility matrix and discernibility function, and obtain several algorithms for solving problems related among other things to the rough definability, reducts, core and dependencies generation.
Journal ArticleDOI
Relational interpretations of neighborhood operators and rough set approximation operators
TL;DR: This paper presents a framework for the formulation, interpretation, and comparison of neighborhood systems and rough set approximations using the more familiar notion of binary relations, and introduces a special class of neighborhood system, called 1-neighborhood systems.
Journal ArticleDOI
A generalized definition of rough approximations based on similarity
TL;DR: New definitions of lower and upper approximations are proposed, which are basic concepts of the rough set theory and are shown to be more general, in the sense that they are the only ones which can be used for any type of indiscernibility or similarity relation.
Book
Intelligent Decision Support: Handbook of Applications and Advances of the Rough Sets Theory
TL;DR: The use of 'Rough Sets' Methods to draw Premonitory Factors for Earthquakes by emphasising Gas Geochemistry: The Case of a Low Seismic Activity Context in Belgium J.T. Polkowski is used.