Ever since the conception of statistical ranking-and-selection (R8S) problem, a predominant approach has been indifference-zone (IZ) formulation. Under IZ formulation, R8S procedures are designed to provide guarantee on probability correct selection (PCS) whenever performance best system exceeds that second-best by specified amount. We discuss shortcomings this and argue providing good (PGS)—se...

Proposing a hierarchical group compromise method can be regarded as a one of major multi-attributes decision-making tool that can be introduced to rank the possible alternatives among conflict criteria. Decision makers’ (DMs’) judgments are considered as imprecise or fuzzy in complex and hesitant situations. In the group decision making, an aggregation of DMs’ judgments and fuzzy group compromi...