Java version of LIBLINEAR

This is a Java version of the original LIBLINEAR C++ sources.

News

• 2010-02-19: intial port of liblinear with instance weight support. See Weights for data instances. Note: Version 1.51-weights is probably slower than 1.51.
• 2010-02-18: released version 1.51 that contains all changes of the C++ version.
• 2009-11-12: released version 1.5 that contains all changes of the C++ version.
• 2009-07-19: added getFeatureWeights() to the Model class.
• 2009-05-12: fixed a bug in Linear.crossValidation().
  Thanks to Zeno Gantner for reporting it.

Download

• liblinear-1.51-weights-with-deps.jar (includes blas dependency)
• liblinear-1.51-weights.jar (version 1.51 with instance weights support)
• liblinear-1.51-with-deps.jar
• liblinear-1.51.jar
• liblinear-1.5-with-deps.jar
• liblinear-1.5.jar
• liblinear-1.33-with-deps.jar
• liblinear-1.33.jar

Documentation

API docs

Source Xref

Maven site

Usage

The usage is pretty similar to the usage of the C++ version. It can be used as Java library or standalone.

Example:
# java -cp liblinear-1.51-with-deps.jar liblinear.Train -v 5 rcv1_train.binary
time: 2612 ms
correct: 19653
Cross Validation Accuracy = 97.0902%


Source code & development

The source code is hosted and maintained on github:
http://github.com/bwaldvogel/liblinear-java/

Weka wrapper

There exists a Weka wrapper since version 3.6.
See the Javadoc for more Information.

Visualized hyperplane in a 3-dimensional
feature space