Query Expansion Using External Evidence.
Zhijun YinMilad ShokouhiNick CraswellPublished in: ECIR (2009)
Keyphrases
- query expansion
- information retrieval systems
- retrieval effectiveness
- information retrieval
- language model
- text retrieval
- pseudo relevance feedback
- relevance feedback
- relevant documents
- retrieval model
- language modeling
- ad hoc retrieval
- original query
- automatic query expansion
- query disambiguation
- improving search
- document ranking
- ranked retrieval
- model for information retrieval
- web corpora
- biomedical information retrieval
- vocabulary mismatch
- retrieved documents