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
δ-Cut Decision-Theoretic Rough Set Approach: Model and Attribute Reductions
TL;DR: A δ-cut decision-theoretic rough set is proposed, which is based on the δ -cut quantitative indiscernibility relation, and two different algorithms are designed to compute reducts, respectively, which show the lowest decision costs and the largest approximation qualities.
Journal ArticleDOI
A Study of Rough Set Approach in Gastroenterology
Ahmet Sahiner,Tuba Yigit +1 more
TL;DR: The type of abdominal pain of the patients who have several symptoms is determined through the rough set theory and information table and discernibility matrix and the status decision information is put forward.
Proceedings ArticleDOI
Rule induction based on decision matrix
Zhiguo Huang,Yuanxiang Li +1 more
TL;DR: This paper presents a method to simplify decision system on the premise of preserving classification ability of original decision system, and designs an efficient approach of rule induction based on decision matrix by using logical expression transformation.
Proceedings Article
Reducing dendrogram instability of features using rough set indiscernibility level
TL;DR: In this paper, a new method of clustering data based on the combination of indiscernibility and its indiscernity level is proposed, which is used to reduce the dendrogram instability.
Journal ArticleDOI
Computational Intelligence Approaches for Determination of Process Disturbance Patterns in an SPC-EPC System
Yuehjen E. Shao,Yi-Hsieh Wang +1 more
TL;DR: Experimental results show that the proposed TDNN approach has the best performance of Accurate Identification rate (AIC) for determining the DP of an SPC/EPC system.
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.