Employing Topic Models for Pattern-based Semantic Class Discovery Huibin Zhang author Mingjie Zhu author Shuming Shi author Ji-Rong Wen author 2009-08 text Proceedings of the Joint Conference of the 47th Annual Meeting of the ACL and the 4th International Joint Conference on Natural Language Processing of the AFNLP Keh-Yih Su editor Jian Su editor Janyce Wiebe editor Haizhou Li editor Association for Computational Linguistics Suntec, Singapore conference publication zhang-etal-2009-employing https://aclanthology.org/P09-1052/ 2009-08 459 467