Xiao Ding author Zhicheng Dou author Bing Qin author Ting Liu author Ji-Rong Wen author 2013-10 text David Yarowsky editor Timothy Baldwin editor Anna Korhonen editor Karen Livescu editor Steven Bethard editor Association for Computational Linguistics Seattle, Washington, USA conference publication ding-etal-2013-improving https://aclanthology.org/D13-1045/ 2013-10 468 478