Optimal combination of feature selection and classification via local hyperplane based learning strategy.
Optimal combination of feature selection and classification via local hyperplane based learning strategy.
复制标题
通过基于局部超平面的学习策略来优化特征选择和分类的组合
DOI:
10.1186/s12859-015-0629-6
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发表时间:
2015-07-10
影响因子:
3
通讯作者:
Su W
中科院分区:
文献类型:
--
作者:
Cheng X;Cai H;Zhang Y;Xu B;Su W
Classifying cancers by gene selection is among the most important and challenging procedures in biomedicine. A major challenge is to design an effective method that eliminates irrelevant, redundant, or noisy genes from the classification, while retaining all of the highly discriminative genes. We propose a gene selection method, called local hyperplane-based discriminant analysis (LHDA). LHDA adopts two central ideas. First, it uses a local approximation rather than global measurement; second, it embeds a recently reported classification model, K-Local Hyperplane Distance Nearest Neighbor(HKNN) classifier, into its discriminator. Through classification accuracy-based iterations, LHDA obtains the feature weight vector and finally extracts the optimal feature subset. The performance of the proposed method is evaluated in extensive experiments on synthetic and real microarray benchmark datasets. Eight classical feature selection methods, four classification models and two popular embedded learning schemes, including k-nearest neighbor (KNN), hyperplane k-nearest neighbor (HKNN), Support Vector Machine (SVM) and Random Forest are employed for comparisons. The proposed method yielded comparable to or superior performances to seven state-of-the-art models. The nice performance demonstrate the superiority of combining feature weighting with model learning into an unified framework to achieve the two tasks simultaneously. The online version of this article (doi:10.1186/s12859-015-0629-6) contains supplementary material, which is available to authorized users.
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影响因子:
3
作者:
Yang K;Cai Z;Li J;Lin G
通讯作者:
Lin G
影响因子:
3.2
作者:
Abdi, Herve;Williams, Lynne J.
通讯作者:
Williams, Lynne J.
DOI:
10.1109/tpami.2005.55
发表时间:
2005-03-01
影响因子:
23.6
作者:
He, XF;Yan, SC;Zhang, HJ
通讯作者:
Zhang, HJ
DOI:
10.1109/tpami.2007.250598
发表时间:
2007-01-01
影响因子:
23.6
作者:
Yan, Shuicheng;Xu, Dong;Lin, Stephen
通讯作者:
Lin, Stephen
影响因子:
1.9
作者:
Pok G;Liu JC;Ryu KH
通讯作者:
Ryu KH