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• W2021829585 abstract "In this paper, we propose a new feature selection approach for the recently proposed Least Squares Projection Twin Support Vector Machine (LSPTSVM) for binary classification. 1-norm is used in our feature selection objective so that only non-zero elements in weight vectors will be chosen as selected features. Also, the Tikhonov regularization term is incorporated to the objective of our approach to reduce the singularity problems of Quadratic Programming Problems (QPPs), and then to minimize its 1-norm measure. This approach leads to a strong feature suppression capability, called as Feature Selection for Least Squares Projection Twin Support Vector Machine (FLSPTSVM). The solutions of FLSPTSVM can be obtained by solving two smaller QPPS arising from two primal QPPs as opposed to two dual ones in Twin Support Vector Machine (TWSVM). Thus, FLSPTSVM is capable of generating sparse solutions. This means that FLSPTSVM can reduce the number of input features for a linear case. Our linear FLSPTSVM can also be extended to a nonlinear case with the kernel trick. When a nonlinear classifier is used, the number of kernel functions required for the classifier is reduced. Our experiments on publicly available datasets demonstrate that our FLSPTSVM has comparable classification accuracy to that of LSPTSVM and obtains sparse solutions." @default.
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• W2021829585 date "2014-11-01" @default.
• W2021829585 modified "2023-10-16" @default.
• W2021829585 title "Feature selection for least squares projection twin support vector machine" @default.
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• W2021829585 doi "https://doi.org/10.1016/j.neucom.2014.05.040" @default.
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