Approaches to knowledge reduction in generalized consistent decision formal context

Authors:
Hong Wang;Wen-Xiu Zhang
Affiliations:
Faculty of Science, Zhongyuan University of Technology, Zhengzhou 450007, PR China;Institute for Information and System Sciences, Faculty of Science, Xi'an Jiaotong University, Xi'an, Shaan'xi, 710049, PR China
Venue:
Mathematical and Computer Modelling: An International Journal
Year:
2008

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Abstract

This paper deals with approaches to knowledge reduction in generalized consistent decision formal context. The concept of generalized consistent decision formal context is introduced and its equivalent definitions are examined. We suggest a theory of knowledge reduction for generalized consistent decision formal context and give the judgement theorems and discernibility matrix. Based on discernibility matrix, we provide the approaches to knowledge reduction in generalized consistent decision formal context of concept lattice.