Extension Data Mining based on Extension set and Rough Set

Abstract

Data mining has gained popularity in the database f ield recently, the gained knowledge is static becau se of the static nature of the database, and does not ref lect the dynamic nature of knowledge. Extension dat a mining is a product combining Extenics with data mi ning, By using the theory and method of Extenics, i t can mine the knowledge from database which is relative to solve contradictory problems. And the knowledge includes the Extension classification kno wledge, conductive knowledge and other knowledge associated with transformation, which collectively called Extension knowledge. Its Application to enterprise brands segmentation will help the enterp rises to gain their ends on the best way. Research result indicates that extension data mining can provide ef fective decide support for the Decision-making of