Gray trend relational clustering and its application in data mining

The characteristics of "poor"information in database and the requirement of "poor" information data mining are analyzed. Based on gray trend relational degree and general system theory, the model of gray trend relational system is investigated. As an application of this model, the gray trend clustering method is presented.Based on scanty data of history sale of a large wine Co. Ltd, according to increasing tendency of sale goods, all kinds of goods are clustered by gray trend clustering method, and the clustering result accords with sale fact. It shows that the gray trend clustering method is valid, convenient and practical.