Keyphrases
- test collection
- information retrieval
- high precision
- pseudo relevance feedback
- question answering
- clef ip
- recall oriented
- average precision
- evaluation campaigns
- precision and recall
- retrieval effectiveness
- machine learning
- search tasks
- medical domain
- high recall
- learning algorithm
- trec web
- medical diagnosis
- query expansion
- medical knowledge
- ad hoc retrieval
- biomedical engineering
- digital libraries
- natural language
- natural sciences