TREC-7 Experiments: Query Expansion Method Based on Word Contribution.
Keiichiro HoashiKazunori MatsumotoNaomi InoueKazuo HashimotoPublished in: TREC (1998)
Keyphrases
- relevance feedback
- ad hoc retrieval
- query words
- database
- information retrieval
- query processing
- improve retrieval effectiveness
- keywords
- compound words
- response time
- query expansion
- pseudo relevance feedback
- co occurrence
- data sources
- related words
- retrieval effectiveness
- data structure
- information retrieval systems
- test collection
- retrieval systems
- short queries
- relevance assessments
- document rankings
- interactive query expansion
- retrieval accuracy
- relevance judgments
- query terms
- user queries
- question answering
- text corpus
- query evaluation
- relevance judgements
- range queries
- query difficulty
- query performance prediction
- vector space
- n gram