Choice and decision making are an integral part of the purposeful activities people in all areas public private life. Tasks multi-criteria characterised by fact that alternative decisions evaluated a set criteria concept its outcome coincide. The defining such problems is Pareto optimal (Pareto set). This forms not comparable terms evaluation criteria. choice can be performed only on basis subj...

Supplier selection problem is an important issue in supply chain management and includes both tangible and intangible factors. Within the effect of the intangible factors, decision making in supplier selection problem includes a high degree of fuzziness and uncertainties in practice. In academic research to handle this uncertainty and vagueness, Fuzzy Set Theory is used as an effective tool. Th...

In the fuzzy set theory, information  measures play a paramount role in several areas such as decision making, pattern recognition etc. In this paper, similarity measure based on cosine function and entropy measures based on logarithmic function for IFSs are proposed. Comparisons of proposed similarity and entropy measures with the existing ones are listed. Numerical results limpidly betoken th...