Keyphrases
- bayesian belief networks
- information retrieval
- test collection
- question answering
- retrieval effectiveness
- expert search
- relevance feedback
- ad hoc retrieval
- relevance judgments
- pseudo relevance feedback
- belief networks
- blog opinion retrieval
- probabilistic inference
- information retrieval systems
- website
- neural network
- bayesian networks
- web pages
- feature selection
- topic detection and tracking
- ir evaluation
- evaluation campaigns
- biomedical information retrieval
- trec blog track
- data mining