Introduction to CKIP Chinese Word Segmentation System for the First International Chinese Word Segmentation Bakeoff Wei-Yun Ma author Keh-Jiann Chen author 2003-07 text Proceedings of the Second SIGHAN Workshop on Chinese Language Processing Association for Computational Linguistics Sapporo, Japan conference publication ma-chen-2003-introduction 10.3115/1119250.1119276 https://aclanthology.org/W03-1726/ 2003-07 168 171