Okapi at TREC-5.
Micheline Hancock-BeaulieuMike GatfordXiangji HuangStephen E. RobertsonSteve WalkerP. W. WilliamsPublished in: TREC (1996)
Keyphrases
- retrieval effectiveness
- test collection
- information retrieval
- document retrieval
- information retrieval systems
- pseudo relevance feedback
- question answering
- query expansion
- relevant documents
- retrieval model
- average precision
- expert search
- relevance feedback
- topic detection and tracking
- language model
- relevance judgments
- evaluation campaigns
- blog opinion retrieval
- genetic algorithm
- ir evaluation
- document rankings
- ad hoc retrieval
- question answering systems
- tf idf
- query terms
- trec web
- trec blog track
- search engine