Implicit Entity Recognition in Clinical Documents Sujan Perera author Pablo Mendes author Amit Sheth author Krishnaprasad Thirunarayan author Adarsh Alex author Christopher Heid author Greg Mott author 2015-06 text Proceedings of the Fourth Joint Conference on Lexical and Computational Semantics Martha Palmer editor Gemma Boleda editor Paolo Rosso editor Association for Computational Linguistics Denver, Colorado conference publication perera-etal-2015-implicit 10.18653/v1/S15-1028 https://aclanthology.org/S15-1028/ 2015-06 228 238