Keyphrases
- relevance feedback
- image retrieval
- cbir systems
- document retrieval
- query expansion
- user feedback
- information retrieval systems
- information retrieval
- active learning
- relevant documents
- region based image retrieval
- image search
- low level features
- retrieval effectiveness
- feedback information
- image retrieval systems
- retrieval framework
- retrieval process
- bridge the semantic gap
- pseudo relevance feedback
- video sequences
- low level visual features
- retrieval model
- query refinement
- image database
- implicit relevance feedback