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Apache OpenNLP 1.5.2 Incubating released

The Apache OpenNLP team is pleased to announce the release of version 1.5.2-incubating of Apache OpenNLP.

The Apache OpenNLP library is a machine learning based toolkit for the processing of natural language text. It supports the most common NLP tasks, such as tokenization, sentence segmentation, part-of-speech tagging, named entity extraction, chunking, parsing, and coreference resolution.

The OpenNLP 1.5.2-incubating binary and source distributions are available for download from our download page:

The OpenNLP library is distributed by Maven Central as well. See the Maven Dependency page for more details:

This release contains a couple of new features, improvements and bug fixes. The maxent trainer can now run in multiple threads to utilize multi-core CPUs, configurable feature generation was added to the name finder, the perceptron trainer was refactored and improved, machine learners can now be configured with much more options via a parameter file, evaluators can print out detailed evaluation information.

Additionally the release contains the following noteworthy changes:

For a complete list of fixed bugs and improvements please see the RELEASE_NOTES file included in the distribution.

--The Apache OpenNLP Team

27 November 2011