A Cascaded Approach for CIPS-SIGHAN Micro-Blog Word Segmentation Bakeoff 2012 Bei Shi author Xianpei Han author Le Sun author 2012-12 text Proceedings of the Second CIPS-SIGHAN Joint Conference on Chinese Language Processing Association for Computational Linguistics Tianjin, China conference publication shi-etal-2012-cascaded https://aclanthology.org/W12-6311/ 2012-12 58 62