The Prototype Tagger Homepage

This is the source code of the "Prototype Tagger", an unsupervised POS tagger developed in the Hebrew University by Omri Abend, Roi Reichart and Ari Rappoport.
It is described in details in:

"Improved Unsupervised POS Induction through Prototype Discovery." Omri Abend, Roi Reichart and Ari Rappoport,
ACL 2010 (full paper). [Paper: pdf]

The users of this code are requested to cite the above-mentioned publication.
It is distributed under the GNU GENERAL PUBLIC LICENSE (a detailed license file is included).

Please email me at omria01 at if you downloaded the code and either succeeded or failed in installing and using it.
We are planning to distribute new versions from time to time and would therefore like to be able to contact the users of this code.

The code (including a README file) is available here: Download.