Keyphrases
- image retrieval
- hierarchical structure
- image database
- clustering algorithm
- relevance feedback
- visual features
- image representation
- hierarchical clustering
- image content
- unsupervised clustering
- text retrieval
- cluster analysis
- data clustering
- graph clustering
- low level features
- neural network
- self organizing maps
- data points
- website
- multimedia
- visual words
- data objects
- visual information
- image annotation
- image collections
- fuzzy c means
- content based retrieval
- lower level
- subspace clustering
- arbitrary shape
- nearest neighbor search
- multimedia retrieval