Sigmoidal model for belief function-based electre tri method
Dezert, J. ; Tacnet, J.M.
Type de document
Communication scientifique avec actes
Affiliation de l'auteur
ONERA PALAISEAU FRA ; IRSTEA GRENOBLE UR ETGR FRA
Résumé / Abstract
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 gj 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 partial concordance and discordance indexes and secondly on global concordance and credibility indexes. In this paper, we propose to replace the calculation of the original concordance and discordance indexes of ET method by a more effective sigmoidal model. Such model is part of a new Belief Function ET (BF-ET) method under development and allows a comprehensive, elegant and continuous mathematical representation of degree of concordance, discordance and the uncertainty level which is not directly taken into account explicitly in the classical Electre Tri.
2nd International Conference on Belief Functions, 09/05/2012 - 11/05/2012, Compiègne, FRA
Belief Functions: Theory and Applications. Advances in Intelligent and Soft Computing. Denoeux T., Masson MH. (eds)