A Preliminary Work on Symptom Name Recognition from Free-Text Clinical Records of Traditional Chinese Medicine using Conditional Random Fields and Reasonable Features Yaqiang Wang author Yiguang Liu author Zhonghua Yu author Li Chen author Yongguang Jiang author 2012-06 text BioNLP: Proceedings of the 2012 Workshop on Biomedical Natural Language Processing Kevin B Cohen editor Dina Demner-Fushman editor Sophia Ananiadou editor Bonnie Webber editor Jun’ichi Tsujii editor John Pestian editor Association for Computational Linguistics Montréal, Canada conference publication wang-etal-2012-preliminary https://aclanthology.org/W12-2428/ 2012-06 223 230