Hellinger distance measures on Pythagorean fuzzy environment via their applications

Article type: Research Article

Authors: Liu, Zhe

Affiliations: School of Computer Sciences, Universiti Sains Malaysia, Penang, Malaysia | E-mail: liuzhe921@gmail.com, zheliu@ieee.org

Abstract: Pythagorean fuzzy sets (PFSs) are a versatile tool for handling uncertain problems and have proven effective in practical applications. However, many existing Pythagorean fuzzy distance measures have counter-intuitive situations, making it challenging to measure the difference between PFSs accurately. To address this issue, we propose two distance measures for PFSs inspired by the Hellinger distance measure. We also explore the properties of the proposed measures and provide several comparative examples with existing measures for PFSs, illustrating their superior performance in processing fuzzy information from PFSs. Finally, we further develop a new decision-making method on top of the proposed measures and evaluate its performance in two applications.

Keywords: Pythagorean fuzzy sets, Hellinger distance, decision-making, uncertain information

DOI: 10.3233/KES-230150

Journal: International Journal of Knowledge-based and Intelligent Engineering Systems, vol. 28, no. 2, pp. 211-229, 2024