Employing Morphological Structures and Sememes for Chinese Event Extraction Peifeng Li author Guodong Zhou author 2012-12 text Proceedings of COLING 2012 Martin Kay editor Christian Boitet editor The COLING 2012 Organizing Committee Mumbai, India conference publication li-zhou-2012-employing https://aclanthology.org/C12-1099/ 2012-12 1619 1634