Volume 4 (2023)
Volume 3 (2022)
Volume 2 (2021)
Volume 1 (2020)
Number of Articles: 7
Fuzzy programming approach to Bi-level linear programming problems
Volume 1, Issue 4 , December 2020, Pages 252-271
Abstract
In this study, we discussed a fuzzy programming approach to bi-level linear programming problems and their application. Bi-level linear programming is characterized as mathematical programming to solve decentralized problems with two decision-makers in the hierarchal organization. They become more important ... Read MoreAn overview of data envelopment analysis models in fuzzy stochastic environments
Volume 1, Issue 4 , December 2020, Pages 272-278
Abstract
One of the appropriate and efficient tools in the field of productivity measurement and evaluation is data envelopment analysis, which is used as a non-parametric method to calculate the efficiency of decision-making units. Today, the use of data envelopment analysis technique is expanding rapidly and ... Read MoreA study on fundamentals of refined intuitionistic fuzzy set with some properties
Volume 1, Issue 4 , December 2020, Pages 279-292
Abstract
Zadeh conceptualized the theory of fuzzy set to provide a tool for the basis of the theory of possibility. Atanassov extended this theory with the introduction of intuitionistic fuzzy set. Smarandache introduced the concept of refined intuitionistic fuzzy set by further subdivision of membership and ... Read MoreInterval valued Pythagorean fuzzy ideals in semigroups
Volume 1, Issue 4 , December 2020, Pages 293-303
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 MoreSome similarity measures of rough interval Pythagorean fuzzy sets
Volume 1, Issue 4 , December 2020, Pages 304-313
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 MoreSpherical interval-valued fuzzy bi-ideals of gamma near-rings
Volume 1, Issue 4 , December 2020, Pages 314-324
Abstract
In this paper we introduce the concept of the spherical interval-valued fuzzy bi-ideal of gamma near-ring R and its some results. The union and intersection of the spherical interval-valued fuzzy bi-ideal of gamma near-ring R is also a spherical interval-valued fuzzy bi-ideal of gamma near-ring R . Further ... Read MoreK-algebras on quadripartitioned single valued neutrosophic sets
Volume 1, Issue 4 , December 2020, Pages 325-339