Multi-criteria decision-making method based on vague sets and risk attitudes of decision makers

Decision-making should take into account the risk attitude of decision maker,the attitude of decision maker has great impact on the decision-making results.Existing score functions of vague set haven't consider the risk attitude of decision maker and all have flaws.Analysis the limitations and deficiencies of existing score functions of vague set,take into account the risk attitude of decision maker,decision makers' attitude function of vague set and three new score functions are provided.Through the use of new score functions the mistakes and limitations in decision making are solved,and also can provide more reasonable and accurate decisions.