Effective Document-Level Features for Chinese Patent Word Segmentation Si Li author Nianwen Xue author 2014-06 text Proceedings of the 52nd Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers) Kristina Toutanova editor Hua Wu editor Association for Computational Linguistics Baltimore, Maryland conference publication li-xue-2014-effective 10.3115/v1/P14-2033 https://aclanthology.org/P14-2033/ 2014-06 199 205