Thesaurus-based query and document expansion in conceptual indexing with UMLS: Application in medical information retrieval.
Diem Thi Hoang LeJean-Pierre ChevalletDong Thi Bich ThuyPublished in: RIVF (2007)
Keyphrases
- information retrieval
- query expansion
- information retrieval systems
- retrieval systems
- umls metathesaurus
- text retrieval
- relevance feedback
- document collections
- database
- document indexing
- response time
- data retrieval
- medical domain
- user queries
- indexing techniques
- retrieval effectiveness
- effective retrieval
- automatic indexing
- object retrieval
- query evaluation
- multimedia retrieval
- query processing
- controlled vocabulary
- text mining
- query terms
- search engine
- data structure
- document retrieval
- inverted index
- retrieval process
- database systems
- knowledge structures
- keywords
- domain specific
- relevant documents
- search terms
- retrieval engine
- information extraction
- national library of medicine