Assessing thesaurus-based query expansion using the UMLS Metathesaurus.
William R. HershSusan PriceLarry DonohoePublished in: AMIA (2000)
Keyphrases
- co occurrence
- query expansion
- umls metathesaurus
- information retrieval systems
- retrieval effectiveness
- information retrieval
- text retrieval
- language model
- query expansion methods
- relevant documents
- language modeling
- pseudo relevance feedback
- ad hoc retrieval
- trec genomics track
- expansion terms
- relevance feedback
- query terms
- improving search
- query disambiguation
- automatic query expansion
- web corpora
- retrieval model
- original query
- latent semantic
- vocabulary mismatch
- short queries
- search logs
- probabilistic retrieval model