Topic Analysis for Psychiatric Document Retrieval Liang-Chih Yu author Chung-Hsien Wu author Chin-Yew Lin author Eduard Hovy author Chia-Ling Lin author 2007-06 text Proceedings of the 45th Annual Meeting of the Association of Computational Linguistics Annie Zaenen editor Antal van den Bosch editor Association for Computational Linguistics Prague, Czech Republic conference publication yu-etal-2007-topic https://aclanthology.org/P07-1129/ 2007-06 1024 1031