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Novel Similarity Measure Based on the Transformed Right-Angled Triangles Between Intuitionistic Fuzzy Sets and its Applications

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Abstract

Intuitionistic fuzzy set (IFS) is one of the most robust and trustworthy tools for portraying the imprecise information with the help of the membership degrees. Similarity measure, one of the information measures, plays an important role in treating imperfect and ambiguous information to reach the final decision by determining the degree of similarity between the pairs of the numbers. Motivated by these, this paper aims to present a novel distance/ similarity among the IFSs based on the transformation techniques with their characteristics. To explore the study, the given IFSs are transformed into the right-angled triangle over a unit square area, and hence based on the intersection of the triangles, novel distance and similarity measures are proposed. An algorithm to solve the decision-making problems with the proposed similarity measure is developed and implemented to execute their performance over the numerous examples such as pattern recognition and clustering analysis. The reliability of the developed measure is investigated by applying it in clustering and the pattern recognition problems and their results are compared with some prevailing studies. From the investigation, we conclude that several existing measures fail to give classification results under the different instances such as “division by zero problems” or “counter-intuitive cases” while the proposed measure successfully overcomes this drawback.

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Authors and Affiliations

  1. School of Mathematics, Thapar Institute of Engineering & Technology, Deemed University, Patiala, 147004, Punjab, India

    Harish Garg & Dimple Rani

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  1. Harish Garg
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  2. Dimple Rani
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Correspondence to Harish Garg.

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The authors declare that they have no conflict of interest.

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Garg, H., Rani, D. Novel Similarity Measure Based on the Transformed Right-Angled Triangles Between Intuitionistic Fuzzy Sets and its Applications. Cogn Comput 13, 447–465 (2021). https://doi.org/10.1007/s12559-020-09809-2

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  • DOI: https://doi.org/10.1007/s12559-020-09809-2

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