Description:

MSVMpack is dedicated to multi-class support vector machines (M-SVM), which can handle more than two classes without relying on decomposition methods, and implements the four M-SVM models from the literature: Weston and Watkins M-SVM, Crammer and Singer M-SVM, Lee, Lin and Wahba M-SVM, and the M-SVM2 of Guermeur and Monfrini.

MSVMpack provides the first parallel implementation of M-SVMs and use vectorized kernel functions depending on the data type for faster computations.

The software is based on two command-line tools, but also provides a full library (C API) to include its functionalities in other programs and a Matlab interface. Templates are provided to ease the addition of custom kernels.

Changes to previous version:

• Fix compilation error with recent gcc

BibTeX Entry: Download

Corresponding Paper BibTeX Entry: Download

Supported Operating Systems: Linux, Macosx, Windows

Data Formats: Ascii, Matlab

Tags: Kernel, Svm, Support Vector Machines, Parallel, Msvm, Multiclass Support Vector Machine, Server

Archive: download here

Other available revisons

Version	Changelog	Date
1.5.1	Fix compilation error with recent gcc	March 9, 2017, 12:29:37
1.5	Windows binaries are now included (by Emmanuel Didiot) MSVMpack can now be compiled on Windows (by Emmanuel Didiot) Fixed polynomial kernel Minor bug fixes	July 3, 2014, 16:02:49
1.4	Added parallelized k-Fold cross validation ('-cv k' option in trainmsvm) Cache size now defaults to the maximum amount of memory Minor bug fixes for the Matlab interface	August 30, 2013, 10:40:35
1.3	Added Matlab interface.	April 23, 2013, 10:44:37
1.2	Added MSVMpack Server and Web interface Now becomes platform-independent at the client side Can import files in LibSVM data format and raw matrix format Model is saved periodically during training	February 7, 2013, 13:25:44
1.1	Possibility to choose different values of C for different classes (useful for unbalanced data sets) Sets the number of working threads at runtime (through the command-line option '-t') Builds on Mac OS X Small changes in the model files Several bug fixes	October 25, 2011, 14:24:21
1.0	Bibtex entry of the corresponding JMLR paper.	July 10, 2011, 12:09:12

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