Keyphrases
- image database
- document retrieval
- spectral analysis
- retrieval accuracy
- information retrieval systems
- multimedia databases
- input signals
- shape retrieval
- query formulation
- text retrieval
- relevance feedback
- image retrieval
- independent component analysis
- test collection
- signal processing
- content based retrieval
- average precision
- combining multiple
- structured documents
- efficient retrieval
- multimedia
- databases
- case retrieval
- retrieval engine
- database