1 Making Large-scale Svm Learning Practical


Training a support vector machine SVM leads to a quadratic optimization problem with bound constraints and one linear equality constraint. Despite the fact that this type of problem is well understood, there are many issues to be considered in designing an SVM learner. In particular, for large learning tasks with many training examples, oo-the-shelf optimization techniques for general quadratic programs quickly become intractable in their memory and time requirements. SVM light1 is an implementation of an SVM learner which addresses the problem of large tasks. This chapter presents algorithmic and computational results developed for SVM light V2.0, which make large-scale SVM training more practical. The results give guidelines for the application of SVMs to large domains. 11.1 Introduction Chapter 1 and Vapnik 1995 show h o w training a support vector machine for the pattern recognition problem leads to the following quadratic optimization problem QP OP1.

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Highly Influential
1 Excerpt

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