DKPro WSD is a modular, extensible Java framework for word sense disambiguation. It provides UIMA components which encapsulate corpus readers, linguistic annotators, lexical semantic resources, disambiguation algorithms, and evaluation and reporting tools.
Most modules of DKPro WSD are licensed under the terms of the Apache License; the others are licensed under the terms of the GNU General Public License.
For more information, visit the DKPro WSD website (still on Google Code) or join the DKPro WSD mailing list.