Keyphrases
- information retrieval systems
- query expansion
- retrieval effectiveness
- retrieval systems
- information retrieval
- document collections
- inverted file
- retrieval model
- document indexing
- user queries
- relevant documents
- retrieval quality
- relevance feedback
- interactive information retrieval
- retrieved documents
- pseudo relevance feedback
- probabilistic model
- music information retrieval
- decision trees
- search engine