Selecting Good Expansion Terms for Pseudo-Relevance Feedback Guihong Cao, Jian-Yun Nie, Jianfeng Gao, Stephen Robertson 2008 SIGIR reporter: Chen, Yi-wen.
Exploring Sentence Level Query Expansion in Language Modeling Based Information Retrieval
reporter: Chen , Yi-wen advisor: Berlin Chen Dept. of Computer Science & Information Engineering
