Machine Learning

, Volume 20, Issue 3, pp 273-297

First online:

Support-vector networks

  • Corinna CortesAffiliated withAT&T Bell Labs.
  • , Vladimir VapnikAffiliated withAT&T Bell Labs.


Thesupport-vector network is a new learning machine for two-group classification problems. The machine conceptually implements the following idea: input vectors are non-linearly mapped to a very high-dimension feature space. In this feature space a linear decision surface is constructed. Special properties of the decision surface ensures high generalization ability of the learning machine. The idea behind the support-vector network was previously implemented for the restricted case where the training data can be separated without errors. We here extend this result to non-separable training data.

High generalization ability of support-vector networks utilizing polynomial input transformations is demonstrated. We also compare the performance of the support-vector network to various classical learning algorithms that all took part in a benchmark study of Optical Character Recognition.


pattern recognition efficient learning algorithms neural networks radial basis function classifiers polynomial classifiers