Research of Data Mining Based on Rough Set

With the rise of data mining,there are many classification and prediction methods.What data mining researchs largely are relational databases.This has brought great convenience for rough set's application.The relational table may regard as the decision table in rough set theory,and using the rough set to deal with data mining is more than the traditional mining tools.The rough set theory is a new mathematical approach to data analysis which are indiscernible with respect to some features.In this paper,basic theory of rough set is introduced using an example,and the implementation of rule mining by variable precision rough set model based on reduction of decision form feature is illustrated using an example.It is effective for rule mining based on rough set by the example.