Research on the Methods of Similarity Measures between Vague Sets

Abstract

AbstractVague set is a generalization of the concept of fuzzy set , similarity measure is the key to research vague set theory. At present, many methods of similarity measure have been proposed, and even been used in several areas. Based on the analysis and studies the methods of similarity measure proposed by domestic and foreign scholars, a new kind of similarity measures of vague set or value is put forward in this article, as well as compares this method with other scholars’ methods, it is verified that the new measures are more rational and practical, and shown that it can be a more useful way to measure the degree of similarity between vague set or value.KeywordsVague setssimilarity measuremembership function