Selecting good expansion terms for pseudo-relevance feedback

Pseudo-relevance feedback assumes that most frequent terms in the pseudo-feedback documents are useful for the retrieval. In this study, we re-examine this assumption and show that it does not hold in reality

• Type: Journal
• Year: 2008
• Where: SIGIR
• Authors: Guihong Cao, Jian-Yun Nie, Jianfeng Gao, Stephen Robertson
• Keywords: Expansion Term, Information Technology, Pseudo-relevance Feedback, SIGIR 2008, Term Classification