Tetsuzo Tanino

TL;DR: F fuzzy preference orderings are defined as fuzzy binary relations satisfying reciprocity and max-min transitivity and those orderings might be useful for proceeding the group decision making process smoothly, in the same manner as the extended contributive rule method.

TL;DR: This paper surveys how fuzzy preference relations are utilized in group decision making and proposes a systems analytic approach which aims to generate a practically meaningful group fuzzy preference relation which reflects differences or diversity of individual preferences.

TL;DR: In this article, stability and sensitivity of the efficient set in convex vector optimization are considered and sufficient conditions for the upper and lower semicontinuity of the perturbation map are obtained.

TL;DR: In this article, a definition exacte du supremum d'un ensemble dans l'espace euclidien a n dimensions etendu was given, and it was shown that this definition is presque equivalent to a notion of dualite conjuguee en optimisation vectorielle.