The Lower Limit for Possibilistic Correlation Coefficient
نویسندگان
چکیده
Recently, Fullér et al. [Fuzzy Sets and Systems, 2010] introduced a new f -weighted index of interactivity, ρf (A,B), between marginal possibility distributions A and B of a joint possibility distribution C for any weighting function f . They also left two open questions in connection with the lower limit for f -weighted possibilistic correlation coefficient related to the improved index of interactivity. In this paper, we obtain a more general result than the suggested open problem, and hence completely prove this open question. Mathematics Subject Classification: 60A86
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