Extending and Scaling up the Chinese Treebank Annotation Xiuhong Zhang author Nianwen Xue author 2012-12 text Proceedings of the Second CIPS-SIGHAN Joint Conference on Chinese Language Processing Association for Computational Linguistics Tianjin, China conference publication zhang-xue-2012-extending https://aclanthology.org/W12-6306/ 2012-12 27 34