Total Margin Based Fuzzy Hypersphere Learning Machine
TAO Jian-Wen1,2, WANG Shi-Tong1
1.School of Information Engineering,Jiangnan University,Wuxi 214122 2.School of Information Engineering,Zhejiang Business Technology Institute,Ningbo 315012
Abstract：There are several problems in classical support vector machines, such as overfitting problem resulted from the outlier and class imbalance learning and the loss of the statistics information of training examples. Aiming at these problems, a total margin based fuzzy hypersphere learning machine (TMF-SSLM) is proposed by constructing a minimum hypersphere in Mercer kernel-induced feature space. The main idea of TMF-SSLM is that one class of binary patterns is enclosed in the minimum hypersphere, from which another one is separated away with maximum margin. Thus both maximum between-class margin and minimum within-class volume are implemented. The proposed TMF-SSLM solves the overfitting problem resulted from outliers by employing both the fuzzification of the penalty and total margin algorithm, as well as the imbalanced problem by using different cost algorithm. Theoretical analysis justifies that TMF-SSLM obtains a lower generalization error bound. The exprimental results obtained on real datasets show that the proposed algorithm is stable and superior to other related diagrams.
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2012, Vol. 25 
