hal-00661865, version 1
Finite-Dimensional Projection for Classification and Statistical Learning
Gilles Blanchard
1Laurent Zwald
2
IEEE Transactions on Information Theory 54, 9 (2008) 4169-4182
Abstract: A new method for the binary classification problem is studied. It relies on empirical minimization of the hinge risk over an increasing sequence of finite-dimensional spaces. A suitable dimension is picked by minimizing the regularized risk, where the regularization term is proportional to the dimension. An oracle-type inequality is established for the excess generalization risk (i.e. regret to Bayes) of the procedure, which ensures adequate convergence properties of the method. We suggest to select the considered sequence of subspaces by applying kernel principal components analysis. In this case the asymptotical convergence rate of the method can be better than what is known for the Support Vector Machine. Exemplary experiments are presented on benchmark datasets where the practical results of the method are comparable to the SVM.
- 1: Fraunhofer FIRST.IDA (FHG FIRST.IDA)
- Fraunhofer Institute
- 2: Laboratoire Jean Kuntzmann (LJK)
- CNRS : UMR5224 – Université Joseph Fourier - Grenoble I – Université Pierre Mendès-France - Grenoble II – Institut Polytechnique de Grenoble - Grenoble Institute of Technology
- Domain : Mathematics/Statistics
Statistics/Statistics Theory - Keywords : statistical learning – classification – support vector machine (SVM) – kernel principal component analysis (KPCA) – regularization – dimension reduction
- hal-00661865, version 1
- http://hal.archives-ouvertes.fr/hal-00661865
- oai:hal.archives-ouvertes.fr:hal-00661865
- From: Laurent Zwald
- Submitted on: Friday, 20 January 2012 18:21:29
- Updated on: Saturday, 21 January 2012 20:42:34






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