Similarity measure for vague sets based on implication functions

摘要

The similarity measure of vague sets is an important index in intelligent systems. Based on the implication function, this paper investigates the similarity measure of vague sets (or elements) and proposes new formulas to calculate the similarity measure of vague sets (or elements). A comparison with the existing similarity measures for vague sets and two applications show that our proposed method is reasonable and valid. (C) 2015 Elsevier B.V. All rights reserved.