The Research Of The Group Preference Incorporating Technology In GDSS

Group Decision Support System(GDSS) is one of important research branch of DSS.In the GDSS,techniques in communication and computer are combined with theory and method of Artificial Intelligence and management science as well as other special mathematical tools to promote the group who have different experiences and knowledge structure as well as shared responsibility to solve the semi-structure and non-structure problems in decision making procedure.Preference is an important factor that must be taken into account in designing methods and building models of decision-making.Especially when the preferences of uncertainty or ambiguity, accurately reflect the preferences have a very large impact on the correctness of the decision-making.As the uncertainty of preference causing by information is not rare, how to make decisions in this condition is the very important issue in the research of decision-making methods.On the other hand,how to incorporate preferences of various decision-makers is a vital link for group decision-making.The main research routine of group decision-making extends from the issue of preferences and its core is how to incorporate preferences from a number of individuals to group;Analytic hierarchy process(AHP) is a practical and effective decision-making method.It has been widely applied to society,economy,management,engineering systems and so on.With the development of AHP theory and the actual requirements of applications, the fuzzy idea and fuzzy methods are introduced to AHP,so the fuzzy analytic hierarchy process(FAHP)has been shaping,which is just consistent with the fuzziness of men's thought.The using of these methods can adequately settle group preference issues existing in GDSS and can effectively improve abilities involving in semi-structured and unstructured decision-making cases,thus the incorporating preferences have become one of the important issues of concern in the research of GDSS.The article first introduces the status quo and existing problems of GDSS and the theory decision-making,putting forward the GDSS structure based on Group AHP and offering decision-making process of GDSS based on the structure in view of the existing problems in decision-making theory and its application of GDSS,and then, based on AHP,it gives matrix method of consistency structure and group matrix assembly method in the context of GDSS,which have further enriched the system of incorporating preference methods.It also advances a fuzzy consistency matrix method(consistency matrix of fuzzy satisfaction)in the basis of fuzzy expansion of AHP and fuzzy processing of expert information and,in the previous research,puts forward my own approaches of group preference incorporated based on the least deviation and the one based on the sort of sum and accumulation.