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Shu-Xia Lu, ; Xi-Zhao Wang, . (2004). [IEEE 2004 International Conference on Machine Learning and Cybernetics - Shanghai, China (26-29 Aug. 2004)] Proceedings of 2004 International Conference on Machine Learning and Cybernetics (IEEE Cat. No.04EX826) - A comparison among four SVM classification methods: LSVM, NLSVM, SSVM and NSVM. , 7(), 4277–4282. doi:10.1109/icmlc.2004.1384589 
10.1109/icmlc.2004.1384589