Information Retrieval 24th China Conference, CCIR 2018, Guilin, China, September 27-29, 2018, Proceedings - Zhang, Shichao; Zhang, Shichao; Liu, Tie-Yan; Liu, Tie-Yan; Li, Xianxian; Li, Xianxian; Guo, Jiafeng; Guo, Jiafeng; Li, Chenliang; Li, Chenliang (Springer International Publishing : Imprint: Springer, 2018)