Fuzzy group identification problems

Designing a model of intuitionistic fuzzy VIKOR in multi-attribute group decision-making problems

Multiple attributes group decision making (MAGDM) is regarded as the process of determining the best feasible solution by a group of experts or decision makers according to the attributes that represent different effects. In assessing the performance of each alternative with respect to each attribute and the relative importance of the selected attributes, quantitative/qualitative evaluations ar...

Fuzzy Classifier System and Genetic Programming on System Identification Problems

This paper describes multi-objective evolutionary optimization of process planning in flexible manufacturing systems (FMSs). FMS can be described as an integrated manufacturing system consisting of machines, computers, robots, and automated guided vehicles (AGVs). While FMSs give great advantages through the flexibility, FMSs pose complex problems on multi-objective process planning. An evoluti...

Fuzzy Primal Simplex Algorithms for Solving Fuzzy Linear Programming Problems

Group identification

I study a model of group identification in which individuals’ opinions as to the membership of a group are aggregated to form a list of the group’s members. Potential aggregation rules are studied through the axiomatic approach. I introduce two axioms, meet separability and join separability, each of which requires the list of members generated by the aggregation rule to be independent of wheth...

Identification of fuzzy models

The objective of this work is to describe a numerical technique to identify parameters of a fuzzy model. When this model and the membership functions of the input variables are continuously differentiable, we show that the estimation of parameters can be performed with a two-levels hierarchical algorithm, comprising the estimation of the model parameters and the estimation of the membership fun...