Title
Measures of similarity among fuzzy concepts: A comparative analysis
Abstract
Many measures of similarity among fuzzy sets have been proposed in the literature, and some have been incorporated into linguistic approximation procedures. The motivations behind these measures are both geometric and set-theoretic. We briefly review 19 such measures and compare their performance in a behavioral experiment. For crudely categorizing pairs of fuzzy concepts as either “similar” or “dissimilar,” all measures performed well. For distinguishing between degrees of similarity or dissimilarity, certain measures were clearly superior and others were clearly inferior; for a few subjects, however, none of the distance measures adequately modeled their similarity judgments. Measures that account for ordering on the base variable proved to be more highly correlated with subjects' actual similarity judgments. And, surprisingly, the best measures were ones that focus on only one “slice” of the membership function. Such measures are easiest to compute and may provide insight into the way humans judge similarity among fuzzy concepts.
Year
DOI
Venue
1987
10.1016/0888-613X(87)90015-6
International Journal of Approximate Reasoning
Keywords
Field
DocType
similarity measures,fuzzy concepts
Semantic similarity,Fuzzy logic,Fuzzy set,Artificial intelligence,Membership function,Machine learning,Mathematics,Distance measures
Journal
Volume
Issue
ISSN
1
2
0888-613X
Citations 
PageRank 
References 
208
48.68
3
Authors
3
Search Limit
100208
Name
Order
Citations
PageRank
Rami Zwick124858.52
Edward Carlstein220949.45
David V. Budescu336370.53