Computer Science ›› 2014, Vol. 41 ›› Issue (3): 66-70.

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Measures of Uncertainty of Knowledge and their Relationships

LIU Cai-hui,MIAO Duo-qian,YUE Xiao-dong and ZHAO Cai-rong   

  • Online:2018-11-14 Published:2018-11-14

Abstract: Measures of uncertainty of knowledge are hot topics in the area of artificial intelligence.This paper studied systemically the interrelationships of classical measures of uncertainty of knowledge in rough set theory.The outputs show that information granularity is equivalent to knowledge granularity,whereas,rough entropy and co-entropy can be derived from information entropy.Two examples were employed to explain the results.

Key words: Measures,Uncertainty,Rough sets,Information entropy

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