An Algorithm of Query Expansion for Chinese EMR Retrieval by Improving Expansion Term Weights and Retrieval Scores. - Songchun Yang; Xiangwen Zheng; Xiangfei Yin; Huajian Mao; Dongsheng Zhao (IEEE Access, 2020)

Improving Chinese electronic medical record retrieval by field weight assignment, negation detection, and re-ranking. - Songchun Yang; Xiangwen Zheng; Yu Xiao; Xiangfei Yin; Jianfei Pang; Huajian Mao; Wei Wei; Wenqin Zhang; Yu Yang; Haifeng Xu; Mei Li; Dongsheng Zhao (J. Biomed. Informatics, 2021)