Query Expansion with Long-Span Collocates.
Olga VechtomovaStephen E. RobertsonSusan JonesPublished in: Inf. Retr. (2003)
Keyphrases
- query expansion
- short queries
- retrieval effectiveness
- information retrieval systems
- information retrieval
- language model
- text retrieval
- language modeling
- pseudo relevance feedback
- relevance feedback
- biomedical information retrieval
- ad hoc retrieval
- ranking scheme
- improving search
- retrieval model
- vocabulary mismatch
- query terms
- query translation
- retrieved documents
- relevant documents
- automatic query expansion
- trec genomics track
- query disambiguation
- probabilistic retrieval model
- passage retrieval
- ranked retrieval
- query expansion methods
- sentence retrieval
- document ranking
- original query