Keyphrases
- information retrieval
- test collection
- retrieval effectiveness
- question answering
- conditional independence
- pseudo relevance feedback
- expert search
- biomedical information retrieval
- relevance feedback
- reuters corpus volume
- evaluation campaigns
- kullback leibler
- relative entropy
- independence assumption
- blog opinion retrieval
- ad hoc retrieval
- kl divergence
- database
- information retrieval systems
- machine learning