Fuzzy Group Decision Making By Using Surrogate Worth Trade-Off Method

In this paper, we used fuzzy theory in group decision making problem. Surrogate worth trade-off method is discussed and according to fuzzy aspect of human decisions, linguistic variables are applied to state the Decision makers opinion. Applying linguistic variables enables proposed algorithm to deal with group decisions. Fundamentals of a -constraint method, surrogate worth tradeoff method and linguistic variables are surveyed as predecessors of proposed algorithm. Proposed algorithm is explained step by step and finally, algorithm is demonstrated with a numerical example.

کلیدواژه ها:

Decision making ، Multi objective optimization ، Surrogate worth trade-off (SWT) ، Linguistic variable