Research On Method Of Linguistic Mutiple Attribute Group Decision Making

Linguistic multiple attribute group decision making is a kind of multiple attribute group decision making that decision making experts express their opinion by linguistic labels.In the process of decision making,decision making experts sometimes express their opinion by accurate numerical value became very difficult because of the uncertainty and complexity of decision making environment.It is very convenient and reasonable for decision making experts to express their opinion by linguistic information.So,the research of linguistic multiple attribute group decision making became more necessary and important. In recent years ,it attract more scholars of abroad and home attention and became a research hotsports in domain of multiple attribute decision making .This paper study the methods of linguistic multiple attribute group decision making ,and main contents include some aspects as fellow:1 Introduce main contents of linguistic multiple attribute group decision making ,and give a review of research situation at home and abroad in detail. 2 A classification and summery is made on semantic representation of linguistic term set;Analyse some common representation methods of semantic of linguistic term set in detail and discuss some problems of semantic representation.3 Deeply study fusion methods of multigranular linguistic term sets ,and two method are proposed on base of present fusion methods,call "a new fusion method of multigranular linguistic term sets base on semantic representation of triangular fuzzy number and fusion method of multigranular linguistic term sets base on expert participated".4 In the linguistic multiple attribute group decision making,when the weights of attributes are unknown, a method of attribute synthetis weights is developed, call "least variance method".5 Deeply analyse the properties,features and defect of present fusion operator of linguistic information,and then corresponding methods of multiple attribute group decision making.Some extension of operators are made,and four fusion operators of linguistic information are developed, call "LWHAoperator,LOWHAoperator,LHHAoperator, LIOWA operator". multiple attribute group decision making method are proposed on base of this operators.6 Study method of multiple attribute group decision making of hybrid information that contain numerical value and linguistic information,and propose a method of multiple attribute group decision making of hybrid information that numerical value is fuzzy number. Give a simple discuss about method of multigranular linguistic multiple attribute group decision making.7 Point out some limitions of this paper and prospect for the further study of linguistic multiple attribute group decision making.