Keyphrases
- information retrieval systems
- information retrieval
- document collections
- user queries
- fuzzy sets
- retrieval systems
- query expansion
- retrieval effectiveness
- retrieval model
- inverted file
- relevance feedback
- relevant documents
- document indexing
- interactive information retrieval systems
- user modelling
- retrieval engine
- music information retrieval
- structured documents
- co occurrence
- interactive information retrieval
- recommender systems
- digital libraries