We present a modification of the vehicle routing problem with the additional restriction that time windows are associated with each customer by defining an interval wherein the cu...
This paper deals with interval-valued fuzzy sets and I-fuzzy sets, Atanassov's intuitionistic fuzzy sets. They are treated in a systematic way as two, formally equivalent, na...
To a fuzzy choice function C we assign the indicators of revealed preference WAFRP(C), SAFRP(C) and the indicators of congruence WFCA(C), SFCA(C). These indicators measure the deg...
In this paper the Archimedean property and the nilpotency of t-norms on the lattice LI is investigated, where LI is the underlying lattice of interval-valued fuzzy set theory (Sam...
We define two negotiation protocols for Group Decision Making, which main feature is the existence of acceptation thresholds. In order to predict which consensus are expected to ...