A great deal of information exists in Internet,from which data mining is to find hidden rules,make full use of useful data,abandon unnecessary data,and solve the problem of data application quality.

• 因特网上有海量的数据信息,数据挖掘是从大量的数据中发现隐含的规律性内容,充分利用有用数据,废弃无用数据,解决数据的应用质量问题。