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Solving large-scale multiclass learning problems via an efficient support vector classifier

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4 Author(s)
Shuibo, Zheng ; School of Electrical and Information Engineering, Shanghai Jiaotong Univ., Shanghai 200030, P. R. China ; Houjun, Tang ; Zhengzhi, Han ; Haoran, Zhang

Support vector machines (SVMs) are initially designed for binary classification. How to effectively extend them for multiclass classification is still an ongoing research topic. A multiclass classifier is constructed by combining SVMlight algorithm with directed acyclic graph SVM (DAGSVM) method, named DAGSVMlight A new method is proposed to select the working set which is identical to the working set selected by SVMlight approach. Experimental results indicate DAGSVMlight is competitive with DAGSMO. It is more suitable for practice use. It may be an especially useful tool for large-scale multiclass classification problems and lead to more widespread use of SVMs in the engineering community due to its good performance.

Published in:

Systems Engineering and Electronics, Journal of  (Volume:17 ,  Issue: 4 )