libsvm-perl

Thread safe swig implementation of libsvm perl bindings. Perl bindings in CPAN for libsvm break on compile (can be fixed easily), but are not thread safe. Memory isn't force cleared, and the binding C file has a hard defined svm/param variables defined which means if you use pthreads they will have memory colisions.

Dependencies

• Perl - This was built/tested with 5.14.2 (you should be ok with 5.8.8 or better)

• Swig 2.0 (didn't try building with anything newer than this).

• g++ (tested with version 4.7.2)

Bugs

For bug reports and issues use the github issues page, try to make sure I'll be able to reproduce the issue.

• If you have compile erros from 'unknown type' try adding the following to proto.h (perl binding files, find the path with echo `perl -e 'use Config; print \$Config{archlib};'`/CORE/proto.h)

#include <stdint.h>
typedef __off64_t off64_t;

Installation

To install follow standard perl module install

$ perl Makefile.PL
$ make
$ make test
$ make install

Usage

See the test.pl file for use cases.

Loading the library

use libsvm;

Defined a param object (stores things like what type of kernel you have

my $param = libsvm::new_param();

Load a model File (include path if needed)

my $model = libsvm::load_model('sample.model');

Copyright and Licence

libsvm-perl is a libsvm swig perl binding that is thread safe. Copyright (C) 2013 Saul Rosa

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Author Information

This module was written by Saul Rosa rosa.saul@megaframe.org.

I'm an electrical engineer who uses a lot of code to get my work done. The modules and wrappers were written to address the shortcommings of libsvm (it's non-threaded and I need to be able to pause the job and resume later on another machine) while making it perl native so I can integrate it into other data analysis tools.

Acknowledgements

Thanks to the authors of libsvm.