Unsupervised Learning of Contextual Role Knowledge for Coreference Resolution David Bean author Ellen Riloff author 2004-may 2 - may 7 text Proceedings of the Human Language Technology Conference of the North American Chapter of the Association for Computational Linguistics: HLT-NAACL 2004 Association for Computational Linguistics Boston, Massachusetts, USA conference publication bean-riloff-2004-unsupervised https://aclanthology.org/N04-1038/ 2004-may 2 - may 7 297 304