A number of multi-criteria decision-making methods can be used for prioritizing in different contexts. Our industry experience showed us that -at least in France and Russiapeople are not aware of the existing prioritization methods and not able to select one when they are provided with a simple state of the art reference list. We therefore believe that a structured approach is necessary for gui...

In the field of multicriteria decision aid, considerable attention has been paid to supervised classification problems where the purpose is to assign alternatives into predefined ordered classes. In these approaches, often referred to as sorting methods, it is usually assumed that categories are either known a priori or can be identified by the decision maker. On the other hand, when the object...

In some MCDM techniques Ð most notably in Outranking Methods Ð the result of the comparison of a finite set of alternatives according to several criteria is summarised using a fuzzy preference relation. This fuzzy relation does not, in general, possess "nice properties" such as transitivity or completeness and elaborating a recommendation on the basis of such information is not an obvious task....

Main decision-making problems can be described into choice, ranking or sorting of a set of alternatives or solutions. The principle of Electre TRI (ET) method is to sort alternatives ai according to criteria g j into categories Ch whose lower and upper limits are respectively bh and bh+1. The sorting procedure is based on the evaluations of outranking relations based firstly on calculation of p...

Data clustering techniques aim at eliciting hidden structures of a data set by partitioning it into groups of similar elements. In the case of relational clustering, the similarity is based on the relations that exist between elements rather than on intrinsic features of each element. However, applying relational clustering tools to the context of Multicriteria Decision Making requires caution ...

Optimal design problem are widely known by their multiple performance measures that are often competing with each other. In this paper, an optimal multiproduct batch chemical plant design is presented. The design is firstly formulated as a multiobjective optimization problem, to be solved using the well suited non dominating sorting genetic algorithm (NSGA-II). The NSGA-II have capability to ac...

Problems with water infrastructure are characterized by strong pressures of various stakeholders, besides to have heavy environmental and financial restrictions. This paper presents a group decisionmaking model for improvement of water infrastructure specially regarding with the reduction of water losses, by the integration of soft and hard approaches of Operational Research. Firstly, the soft ...

This paper presents an extension of the comprehensive (overall) concordance index of ELECTRE methods, which takes the interaction between criteria into account. In real-world decision-aiding situations, it is reasonable to consider only the interaction between a small number of criterion pairs. Three types of interaction have been considered: mutual strengthening, mutual weakening, and antagoni...