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- ELECTRE είναι οικογένεια μεθόδων πολυκριτηριακής ανάλυσης που αναπτύχθηκε στην Ευρώπη στα τέλη του 1960. Το αρκτικόλεξο ELECTRE σημαίνει ELimination Et Choix Traduisant la REalité. Η ELECTRE είναι μη αντισταθμιστική μέθοδος υποστήριξης της πολυκριτηριακής απόφασης που εισήχθη από τον . (el)
- ELECTRE est une famille de méthodes d'analyse multi-critères développée en Europe à la fin des années 1960. L'acronyme ELECTRE signifie elimination et choix traduisant la réalité. (fr)
- ÉLECTRE is a family of multi-criteria decision analysis (MCDA) methods that originated in Europe in the mid-1960s. The acronym ÉLECTRE stands for: ÉLimination Et Choix Traduisant la REalité ("Elimination and Choice Translating Reality"). The method was first proposed by Bernard Roy and his colleagues at SEMA consultancy company. A team at SEMA was working on the concrete, multiple criteria, real-world problem of how firms could decide on new activities and had encountered problems using a weighted sum technique. Roy was called in as a consultant and the group devised the ELECTRE method. As it was first applied in 1965, the ELECTRE method was to choose the best action(s) from a given set of actions, but it was soon applied to three main problems: choosing, ranking and sorting. The method became more widely known when a paper by B. Roy appeared in a French operations research journal. It evolved into ELECTRE I (electre one) and the evolutions have continued with ELECTRE II, ELECTRE III, ELECTRE IV, ELECTRE IS and ELECTRE TRI (electre tree), to mention a few. They are used in the fields of business, development, design, and small hydropower. Roy is widely recognized as the father of the ELECTRE method, which was one of the earliest approaches in what is sometimes known as the French school of decision making. It is usually classified as an "outranking method" of decision making. There are two main parts to an ELECTRE application: first, the construction of one or several outranking relations, which aims at comparing in a comprehensive way each pair of actions; second, an exploitation procedure that elaborates on the recommendations obtained in the first phase. The nature of the recommendation depends on the problem being addressed: choosing, ranking or sorting. Usually the ELECTRE methods are used to discard some alternatives to the problem, which are unacceptable. After that, another form of MCDA can be used to select the best one. The advantage of using the ELECTRE methods before is that another MCDA can be applied with a restricted set of alternatives, saving much time. Criteria in ELECTRE methods have two distinct sets of parameters: the importance coefficients and the veto thresholds. ELECTRE method cannot determine the weights of the criteria. In this regard, it can be combined with other approaches such as Ordinal Priority Approach, Analytic Hierarchy Process, etc. (en)
- ELECTRE è una famiglia di metodi decisionali multicriterio che ebbe origine in Europa nella metà degli anni 60. L'acronimo ELECTRE sta per: ELimination Et Choix Traduisant la REalité che in italiano significa "eliminazione e scelta che esprimono la realtà". (it)
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