Keyphrases
- information retrieval
- information retrieval systems
- image database
- high dimensional
- relevance feedback
- efficient retrieval
- retrieval accuracy
- retrieval systems
- shape retrieval
- feature space
- test collection
- training phase
- preprocessing phase
- content based retrieval
- high dimensional data
- feature extraction
- low dimensional
- subspace learning
- linear subspace
- similarity measure
- multimedia information