Pythagorean fuzzy sets and their variants
1. Interval valued Pythagorean fuzzy ideals in semigroups

Veerappan Chinnadurai; Arul Selvam

Volume 1, Issue 4 , Autumn 2020, , Pages 315-324

http://dx.doi.org/10.22105/jfea.2020.252687.1023

Abstract
  In this paper, we define the new notion of interval-valued Pythagorean fuzzy ideals in semigroups and established the properties of its with suitable examples. Also, we introduce the concept of interval valued Pythagorean fuzzy sub-semigroup, interval valued Pythagorean fuzzy left (resp. right) ideal, ...  Read More

Pythagorean fuzzy sets and their variants
2. Some similarity measures of rough interval Pythagorean fuzzy sets

V. S. Subha; Dhanalakshmi Dhanalakshmi

Volume 1, Issue 4 , Autumn 2020, , Pages 325-335

http://dx.doi.org/10.22105/jfea.2020.262002.1068

Abstract
  In this paper, we expose cosine, jaccard and dice similarity measures and rough interval Pythagorean mean operator. Some of the important properties of the defined similarity measures have been established. Then the proposed methods are applied for solving multi attribute decision making problems. Finally, ...  Read More