A note on “Rough set theory based on two universal sets and its applications” Knowledge-Based Systems 23 (2010) 110–115

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摘要

In this paper, we point out that one assertion (Proposition 6.1 (1)) in a previous paper by Liu [G.L. Liu, Rough set theory based on two universal sets and its applications, Knowledge-Based Systems 23 (2) (2010) 110–115] is incorrect by a counterexample. And a correct result is given.

论文关键词：Rough set,Lower and upper approximations,Fuzzy set,Counterexample,Fuzzy rough set,Solitary set

论文评审过程：Received 23 September 2010, Accepted 17 November 2010, Available online 1 December 2010.

论文官网地址：https://doi.org/10.1016/j.knosys.2010.11.004