A new approach for evaluating query expansion: query-document term mismatch.
Tonya CustisKhalid Al-KofahiPublished in: SIGIR (2007)
Keyphrases
- term mismatch
- query expansion
- relevant documents
- information retrieval
- information retrieval systems
- language model
- retrieval effectiveness
- text retrieval
- relevance feedback
- pseudo relevance feedback
- original query
- language modeling
- query terms
- ad hoc retrieval
- expansion terms
- trec genomics track
- retrieval model
- improving search
- term selection
- initial query
- biomedical information retrieval
- ranking scheme
- automatic query expansion
- document ranking
- document level
- model for information retrieval
- query expansion methods
- passage retrieval
- result set
- test collection