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Apache OpenNLP 1.9.0 released

The Apache OpenNLP team is pleased to announce the release of Apache OpenNLP 1.9.0.

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.

Apache OpenNLP 1.9.0 binary and source distributions are available for download from our download page: download page

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

What’s new in Apache OpenNLP 1.9.0

This release introduces new features, improvements and bug fixes. Java 1.8 and Maven 3.3.9 are required.

Additionally, the release contains the following changes:

  • Brat Document Parser should support name type filters

  • Brat format support fails on multi fragment annotations

  • Remove MD5 hashes from Release process

  • Use String[] instead of StringList in LanguageModel API

  • BRAT Annotator service Fails to start

  • Token model creation fails without at least one <SPLIT> tag

  • Update Penn Treebank URL

  • Explain the new format of feature generator XML config

  • Unify code to sum up input context features

  • FeatureGeneratorUtil can recognize Japanese Hiragana and Katakana letters

A detailed list of the issues related to this release can be found in the release notes.

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

--The Apache OpenNLP Team

02 July 2018