Abstract: In view of the classification of the imbalance data set,this paper gives the method using SMOTE （Synthetic Minority Over-sampling Technique, SMOTE） and Biased-SVM （Biased Support Vector Machine, Biased-SVM）. Firstly, data set is taken into account using B

Key words: Machine learning, Imbalanced data set, Data classification, SMOTE, Biased-SVM