CL Research’s Knowledge Management System Kenneth C Litkowski author 2005-06 text Proceedings of the ACL Interactive Poster and Demonstration Sessions Masaaki Nagata editor Ted Pedersen editor Association for Computational Linguistics Ann Arbor, Michigan conference publication litkowski-2005-cl 10.3115/1225753.1225757 https://aclanthology.org/P05-3004/ 2005-06 13 16