Results 51 to 60 of about 829 (114)

A fuzzy multi-objective linear programming with interval-typed triangular fuzzy numbers

open access: yesOpen Mathematics, 2019
A multi-objective linear programming problem (ITF-MOLP) is presented in this paper, in which coefficients of both the objective functions and constraints are interval-typed triangular fuzzy numbers. An algorithm of the ITF-MOLP is provided by introducing
Li Chunquan
doaj   +1 more source

An Approach to the Total Least Squares Method for Symmetric Triangular Fuzzy Numbers

open access: yesMathematics
The total least squares method has a broad applicability in many fields. It is also useful in fuzzy data analysis. In this paper, we study the method of total least squares for fuzzy variables. The regression parameters are considered to be crisp. First,
Marius Giuclea, Costin-Ciprian Popescu
doaj   +1 more source

THE RATING SCALE MODEL IN THE CONSTRUCTION OF FUZZY TOPSIS METHOD

open access: yesQuantitative Methods in Economics, 2014
Fuzzy TOPSIS method enables linear ordering of objects characterized by linguistic variables, which values constitute expressions emerging from natural language.
Bartłomiej Jefmański
doaj  

Ranking Fuzzy Numbers with a Distance Method using Circumcenter of Centroids and an Index of Modality

open access: yesAdvances in Fuzzy Systems, 2011
Ranking fuzzy numbers are an important aspect of decision making in a fuzzy environment. Since their inception in 1965, many authors have proposed different methods for ranking fuzzy numbers. However, there is no method which gives a satisfactory result
P. Phani Bushan Rao, N. Ravi Shankar
doaj   +1 more source

A Fuzzy Inventory Model Without Shortages Using Triangular Fuzzy Number

open access: yesFuzzy Information and Engineering, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
De, P. K., Rawat, Apurva
openaire   +2 more sources

Refractured Well Selection for Multicriteria Group Decision Making by Integrating Fuzzy AHP with Fuzzy TOPSIS Based on Interval-Typed Fuzzy Numbers

open access: yesJournal of Applied Mathematics, 2012
Multicriteria group decision making (MCGDM) research has rapidly been developed and become a hot topic for solving complex decision problems. Because of incomplete or non-obtainable information, the refractured well-selection problem often exists in ...
Tiejun Li, Jianhua Jin, Chunquan Li
doaj   +1 more source

Risk Based Regional Water Security Assessment Method Using Stochastic Simulation and Triangular Fuzzy Numbers

open access: yes工程科学与技术, 2010
:In order to resolve the problem of imprecise and complex operations of triangular fuzzy numbers for quantitatively describing the grade of risk and importance of risk of water security system by the existing method and the problem that its aggregative ...
Wang Zhesun   +4 more
doaj  

System Optimum Fuzzy Traffic Assignment Problem

open access: yesPromet (Zagreb), 2019
This paper focuses on converting the system optimum traffic assignment problem (SO-TAP) to system optimum fuzzy traffic assignment problem (SO-FTAP). The SO-TAP aims to minimize the total system travel time on road network between the specified origin ...
Gizem Temelcan   +2 more
doaj   +1 more source

The Operational Laws of Symmetric Triangular Z-Numbers

open access: yesMathematics
To model fuzzy numbers with the confidence degree and better account for information uncertainty, Zadeh came up with the notion of Z-numbers, which can effectively combine the objective information of things with subjective human interpretation of ...
Hui Li   +5 more
doaj   +1 more source

Methods in Ranking Fuzzy Numbers: A Unified Index and Comparative Reviews

open access: yesComplexity, 2017
Fuzzy set theory, extensively applied in abundant disciplines, has been recognized as a plausible tool in dealing with uncertain and vague information due to its prowess in mathematically manipulating the knowledge of imprecision.
Thanh-Lam Nguyen
doaj   +1 more source

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