Multi-criteria Group Decision Making Method Based on Two-tuple Linguistic Information Processing

?With respect to the multicriteria group decisionmaking problems with linguistic assessment information,an analysis method for the group decisionmaking problems was proposed based on twotuple linguistic information processing. In the method,the twotuple linguistic conception was used to represent linguistic assessment information,aggregate and process initial assessment information that experts provide. An arithmetic was given by means of definition. The multicriteria group decisionmaking problem with linguistic assessment information was introduced. The definition and characteristics of twotuple linguistic and several aggregation operators were given based on twotuple linguistic assessment information. The steps for solving the group decisionmaking problem were given. A numerical example was used to illustrate the use of the proposed method.