Exploiting Strong Syntactic Heuristics and Co-Training to Learn Semantic Lexicons William Phillips author Ellen Riloff author 2002-07 text Proceedings of the 2002 Conference on Empirical Methods in Natural Language Processing (EMNLP 2002) Association for Computational Linguistics conference publication phillips-riloff-2002-exploiting 10.3115/1118693.1118710 https://aclanthology.org/W02-1017/ 2002-07 125 132