Sequential minimal optimization for SVM with pinball loss
Sequential minimal optimization for SVM with pinball loss
复制标题
具有 pinball 损失的 SVM 的顺序最小优化
DOI:
10.1016/j.neucom.2014.08.033
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发表时间:
2015-02
期刊:
影响因子:
6
通讯作者:
Johan A.K. Suykens
中科院分区:
文献类型:
--
作者:
Xiaolin Huang;Lei Shi;Johan A.K. Suykens
To pursue the insensitivity to feature noise and the stability to re-sampling, a new type of support vector machine (SVM) has been established via replacing the hinge loss in the classical SVM by the pinball loss and was hence called apin-SVM. Though a different loss function is used, pin-SVM has a similar structure as the classical SVM. Specifically, the dual problem of pin-SVM is a quadratic programming problem with box constraints, for which the sequential minimal optimization (SMO) technique is applicable. In this paper, we establish SMO algorithms for pin-SVM and its sparse version. The numerical experiments on real-life data sets illustrate both the good performance of pin-SVMs and the effectiveness of the established SMO methods.
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