Journal
APPLIED SOFT COMPUTING
Volume 41, Issue -, Pages 148-156Publisher
ELSEVIER
DOI: 10.1016/j.asoc.2015.12.002
Keywords
Soft set; Fuzzy soft sets; Intuitionistic fuzzy soft sets; Similarity measure
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In this paper, a new similarity measure and a weighted similarity measure on intuitionistic fuzzy soft sets (IFSSs) are proposed and some of their basic properties are discussed. Using the proposed similarity measure, a relation (approximate to(alpha)) between two IFSSs are defined and it is found that the defined relation is not an equivalence relation. Further, the effectiveness of the proposed similarity measure is demonstrated in a numerical example with the help of measure of performance and measure of error. Moreover, medical diagnosis problems have been exhibited through a hypothetical case study by using this proposed similarity measure. Finally, the proposed method is applied to 10 different medical data sets from UCI Machine Learning Repository datasets and its similarity measures are calculated. The corresponding performance measures, like, accuracy, sensitivity, specificity, ROC curves, AUC values, and F-measures are obtained and it is compared with the existing methods. This shows that the proposed method exhibits more accuracy, sensitivity and enhanced F-measures than the existing methods. (C) 2015 Elsevier B.V. All rights reserved.
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