Okapi at TREC-4.
Stephen E. RobertsonSteve WalkerMicheline Hancock-BeaulieuMike GatfordA. PaynePublished in: TREC (1995)
Keyphrases
- retrieval effectiveness
- information retrieval systems
- information retrieval
- document retrieval
- test collection
- pseudo relevance feedback
- query expansion
- retrieval model
- question answering
- relevant documents
- language model
- relevance feedback
- relevance judgments
- tf idf
- biomedical information retrieval
- latent semantic indexing
- okapi bm
- expert search
- text retrieval
- data sets
- evaluation campaigns
- ir evaluation
- blog opinion retrieval
- average precision
- document collections
- short queries
- question answering systems
- document level
- trec web
- data mining