A Rule System for Chinese Time Entity Recognition by Comprehensive Linguistic Study Hongzhi Xu author Chu-Ren Huang author 2013-10 text Proceedings of the Sixth International Joint Conference on Natural Language Processing Ruslan Mitkov editor Jong C Park editor Asian Federation of Natural Language Processing Nagoya, Japan conference publication xu-huang-2013-rule https://aclanthology.org/I13-1096/ 2013-10 795 801