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Polynomial network classifier with discriminative feature extraction

Abstract : The polynomial neural network, or called polynomial network classifier (PNC), is a powerful nonlinear classifier that can separate classes of complicated distributions. A method that expands polynomial terms on principal subspace has yielded superior performance. In this paper, we aim to further improve the performance of the subspace-featurebased PNC. In the framework of discriminative feature extraction (DFE), we adjust the subspace parameters together with the network weights in supervised learning. Under the objective of minimum squared error, the parameters can be efficiently updated by stochastic gradient descent. In experiments on 13 datasets from the UCI Machine Learning Repository, we show that DFE can either improve the classification accuracy or reduce the network complexity. On seven datasets, the accuracy of PNC is competitive with support vector classifiers.
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https://hal.inria.fr/inria-00120417
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Submitted on : Tuesday, December 19, 2006 - 8:50:20 AM
Last modification on : Wednesday, June 3, 2020 - 9:53:46 PM
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Cheng-Lin Liu. Polynomial network classifier with discriminative feature extraction. Joint IAPR International Workshops, SSPR 2006 and SPR 2006, Aug 2006, Hong-Kong / Chine, China. pp.732-740, ⟨10.1007/11815921_80⟩. ⟨inria-00120417⟩

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