On the Inheritability Problem in Knowledge Discovery in Database

The inheritability problem in the KDD(knowledge discovery in database)process is presented.The KDD process,the DM(data mining)algorithms,and the relation between them are formally described and deeply analyzed.The basic concept named PK(primary knowledge)is put forward.Then the traditional DM algorithm,incremental DM algorithm and the inheritable DM algorithm are formally described and compared.Finally,it is concluded that the inheritable DM algorithm can improve the efficiency of data mining with the variable data set and parameters.