Keyphrases
- information retrieval
- retrieval model
- document retrieval
- image database
- retrieval systems
- query expansion
- retrieval accuracy
- test collection
- relevance feedback
- image retrieval
- text retrieval
- average precision
- multimedia retrieval
- search engine
- similarity matching
- content based indexing
- query formulation
- information retrieval systems
- social networks
- retrieval method
- content based retrieval
- image content
- efficient retrieval
- case study