Event-Based Hyperspace Analogue to Language for Query Expansion Tingxu Yan author Tamsin Maxwell author Dawei Song author Yuexian Hou author Peng Zhang author 2010-07 text Proceedings of the ACL 2010 Conference Short Papers Jan Hajič editor Sandra Carberry editor Stephen Clark editor Joakim Nivre editor Association for Computational Linguistics Uppsala, Sweden conference publication yan-etal-2010-event https://aclanthology.org/P10-2022/ 2010-07 120 125