8Pawlak Z.Rough set theory and its applicatio to data analysis[J].Cyberneticsand Syetems, 1998,29 (1):661-668.
9Lapedes A,FarberR.Nonliner signal processing using neural networks[Z].Prediction and System Modeling. tech LA-ur-87-2662,Los Alamos,Los Alamos National Laboratory , 1987.
10Nguyue J.Classification based on optimal feature extraction and the theory of rough sets [J], Thesis of Smaster Degree, SDSU, 1996.
