Mining Opinion Words and Opinion Targets in a Two-Stage Framework Liheng Xu author Kang Liu author Siwei Lai author Yubo Chen author Jun Zhao author 2013-08 text Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Hinrich Schuetze editor Pascale Fung editor Massimo Poesio editor Association for Computational Linguistics Sofia, Bulgaria conference publication xu-etal-2013-mining https://aclanthology.org/P13-1173/ 2013-08 1764 1773