Ship type selection based on group decision-making with multi-objects

Selection of ship-types based on PSO group decision-making method with multi-objects was researched. First, at the foundation of multi-objects decision-making method which utilizes weighting distance to ensure the consistency of decision result, a new multi-scheme, multi-object group decision-making method was proposed. Then the individual evaluation value was adjusted by PSO, making the decision result keep the initial predilection of every expert and the fine consistency of interest-relevancies. And the new method was introduced to the process of ship-types' optimize-choice, then to determine the important factors and their weights, a series of ship-types was generated by equality design, and numbers of experts were invited to make a strategic decision for achieving the decision result of best ship-type. This decision method offers a new simple and efficient avenue to optimize-choice of the ship-types with high reliability.