Laboratory experiments with Okapi: participation in the TREC programme.
Stephen E. RobertsonSteve WalkerMicheline BeaulieuPublished in: J. Documentation (1997)
Keyphrases
- retrieval effectiveness
- test collection
- information retrieval
- document retrieval
- information retrieval systems
- pseudo relevance feedback
- question answering
- relevance feedback
- language model
- relevance judgments
- retrieval model
- relevant documents
- ad hoc retrieval
- okapi bm
- tf idf
- topic detection and tracking
- expert search
- distance learning
- average precision
- neural network
- higher education
- query expansion
- decision making
- biomedical information retrieval