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2005
Springer

Some Improvements to a Parallel Decomposition Technique for Training Support Vector Machines

12 years 1 months ago
Some Improvements to a Parallel Decomposition Technique for Training Support Vector Machines
We consider a parallel decomposition technique for solving the large quadratic programs arising in training the learning methodology Support Vector Machine. At each iteration of the technique a subset of the variables is optimized through the solution of a quadratic programming subproblem. This inner subproblem is solved in parallel by a special gradient projection method. In this paper we consider some improvements to the inner solver: a new algorithm for the projection onto the feasible region of the optimization subproblem and new linesearch and steplength selection strategies for the gradient projection scheme. The effectiveness of the proposed improvements is evaluated, both in terms of execution time and relative speedup, by solving large-scale benchmark problems on a parallel architecture.
Thomas Serafini, Luca Zanni, Gaetano Zanghirati
Added 28 Jun 2010
Updated 28 Jun 2010
Type Conference
Year 2005
Where PVM
Authors Thomas Serafini, Luca Zanni, Gaetano Zanghirati
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