Exact Phrases in Information Retrieval for Question Answering Svetlana Stoyanchev author Young Chol Song author William Lahti author 2008-08 text Coling 2008: Proceedings of the 2nd workshop on Information Retrieval for Question Answering Mark A Greenwood editor Coling 2008 Organizing Committee Manchester, UK conference publication stoyanchev-etal-2008-exact https://aclanthology.org/W08-1802/ 2008-08 9 16