Categorizing and ranking search engine's results by semantic similarity. - Tianyong Hao; Zhi Lu; Shitong Wang; Tiansong Zou; Shenhua Gu; Liu Wenyin (ICUIMC, 2008)

Question recommendation for user-interactive question answering systems. - Dawei Hu; Shenhua Gu; Shitong Wang; Liu Wenyin; Enhong Chen (ICUIMC, 2008)