Keyphrases
- text retrieval
- query expansion
- retrieval model
- information retrieval
- document collections
- retrieval systems
- document retrieval
- cross language
- latent semantic indexing
- image retrieval
- multimedia retrieval
- inverted file
- retrieval quality
- keyword extraction
- retrieval strategies
- blind relevance feedback
- text categorization
- information retrieval systems
- active learning
- digital libraries
- bayesian networks