Okapi at TREC-3.
Stephen E. RobertsonSteve WalkerSusan JonesMicheline Hancock-BeaulieuMike GatfordPublished in: TREC (1994)
Keyphrases
- retrieval effectiveness
- test collection
- information retrieval
- document retrieval
- information retrieval systems
- pseudo relevance feedback
- question answering
- retrieval model
- query expansion
- average precision
- expert search
- relevance feedback
- tf idf
- ad hoc retrieval
- machine learning
- language model
- document collections
- question answering systems
- ir evaluation
- evaluation campaigns
- biomedical information retrieval
- relevance judgments
- document level
- genetic algorithm
- query performance prediction
- reuters corpus volume
- trec blog track