Counter-Training in Discovery of Semantic Patterns Roman Yangarber author 2003-07 text Proceedings of the 41st Annual Meeting of the Association for Computational Linguistics Association for Computational Linguistics Sapporo, Japan conference publication yangarber-2003-counter 10.3115/1075096.1075140 https://aclanthology.org/P03-1044/ 2003-07 343 350