Volume 17, Issue 3
مرور بر اساس
ارسال های اخیر

Complex fuzzy Hvsubgroups of an Hvgroup
(University of Sistan and Baluchestan, 20200601)The concept of complex fuzzy sets is a generalization of ordinary fuzzy sets. In this paper, we introduce the concept of complex fuzzy subhypergroups ($H_{v}$subgroups) as well as the concept of complex antifuzzy ...

Power allocation rules under fuzzy behavior and multicriteria situations
(University of Sistan and Baluchestan, 20200601)In this paper, we adopt supremeutilities among fuzzy level (decision) vectors to propose a power allocation rule, its efficient extension and normalization in the framework of multicriteria fuzzy transferableutility (TU) ...

The left (right) distributivity of semitoperators over 2uninorms
(University of Sistan and Baluchestan, 20200601)Recently the distributive equations involving various classes of aggregation operators have aroused widespread attention because of their importance in the theoretic and applied communities of fuzzy set theory. 2uninorms ...

Interpolating time series based on fuzzy cluster analysis problem
(University of Sistan and Baluchestan, 20200601)This study proposes the model for interpolating time series to use them to forecast effectively for future. This model is established based on the improved fuzzy clustering analysis problem, which is implemented by the ...

The role of states in triangle algebras
(University of Sistan and Baluchestan, 20200601)In this paper, we enlarge the language of triangle algebra by addinga unary operation that describes properties of a state. Thesestructure algebras are called state triangle algebra. The vitalproperties ...

Hesitant qrung orthopair fuzzy aggregation operators with their applications in multicriteria decision making
(University of Sistan and Baluchestan, 20200601)The aim of this manuscript is to present a new concept of hesitant qrung orthopair fuzzy sets (HqROFSs) by combining the concept of the qROFSs as well as Hesitant fuzzy sets. The proposed concept is the generalization ...

Rulebased joint fuzzy and probabilistic networks
(University of Sistan and Baluchestan, 20200601)One of the important challenges in Graphical models is the problem of dealing with the uncertainties in the problem. Among graphical networks, fuzzy cognitive map is only capable of modeling fuzzy uncertainty and the ...

Super and subadditive transformations of aggregation functions from the point of view of approximation
(University of Sistan and Baluchestan, 20200601)The way super and subadditive transformations of aggregation functions are introduced involve suprema and infima taken over simplexes whose dimensions may grow arbitrarily. Exact values of such transformations may thus ...

Extended and infinite ordered weighted averaging and sum operators with numerical examples
(University of Sistan and Baluchestan, 20200601)This study discusses some variants of Ordered WeightedAveraging (OWA) operators and related information aggregation methods. Indetail, we define the Extended Ordered Weighted Sum (EOWS) operator and the

An extended hesitant group decisionmaking technique based on the prospect theory for emergency situations
(University of Sistan and Baluchestan, 20200601)Throughout the present manuscript, we are going to introduce a novel group emergency decisionmaking technique in which the application of prospect theory explains the psychological behaviour of the decision maker who is ...

Using necessarily weak efficient solutions for solving a biobjective transportation problem with fuzzy objective functions coefficients
(University of Sistan and Baluchestan, 20200601)This paper considers a biobjective transportation problem with various fuzzy objective functions coefficients. Fuzzy coefficients can be of different types such as triangular, trapezoidal, (semi) $LR$, or flat (semi) $LR$ ...

Trend analysis in Lfuzzy contexts with absent values
(University of Sistan and Baluchestan, 20200601)Sometimes we have to work with $L$fuzzy context sequences where one or more values are missing. These sequences can represent, among other things, the evolution in time of an $L$fuzzy context. The studies of tendencies ...

New optimality conditions for multiobjective fuzzy programming problems
(University of Sistan and Baluchestan, 20200601)In this paper we study fuzzy multiobjective optimization problems defined for $n$ variables. Based on a new $p$dimensional fuzzy stationarypoint definition, necessary efficiency conditions are obtained. And we prove ...

A new quadratic deviation of fuzzy random variable and its application to portfolio optimization
(University of Sistan and Baluchestan, 20200601)The aim of this paper is to propose a convex risk measure in the framework of fuzzy random theory and verify its advantage over the conventional variance approach. For this purpose, this paper defines the quadratic deviation ...