Query Expansion using an Automatically Constructed Thesaurus.
Hidetsugu NanbaPublished in: NTCIR (2007)
Keyphrases
- query expansion
- information retrieval systems
- information retrieval
- retrieval effectiveness
- language modeling
- pseudo relevance feedback
- language model
- text retrieval
- query expansion methods
- relevance feedback
- relevant documents
- automatic query expansion
- retrieval model
- biomedical information retrieval
- expansion terms
- latent semantic
- ad hoc retrieval
- web corpora
- original query
- interactive query expansion
- improving search
- query terms
- trec genomics track
- pseudo feedback
- model for information retrieval
- initial query
- machine learning
- retrieval systems