Less is more: Eliminating index terms from subordinate clauses Simon H Corston-Oliver author William B Dolan author 1999-06 text Proceedings of the 37th Annual Meeting of the Association for Computational Linguistics Association for Computational Linguistics College Park, Maryland, USA conference publication corston-oliver-dolan-1999-less 10.3115/1034678.1034734 https://aclanthology.org/P99-1045/ 1999-06 349 356