Recent Advances in HNC’s Context Vector Information Retrieval Technology Marc R Ilgen author David A Rushall author 1996-05 text TIPSTER TEXT PROGRAM PHASE II: Proceedings of a Workshop held at Vienna, Virginia, May 6-8, 1996 Association for Computational Linguistics Vienna, Virginia, USA conference publication ilgen-rushall-1996-recent 10.3115/1119018.1119053 https://aclanthology.org/X96-1031/ 1996-05 149 158