Keyphrases
- dimensionality reduction
- image retrieval
- feature space
- high dimensional data
- high dimensional
- low dimensional
- image database
- pattern recognition
- high dimensionality
- data representation
- manifold learning
- relevance feedback
- feature extraction
- data points
- image representation
- dimensionality reduction methods
- principal component analysis
- retrieval method
- random projections
- linear discriminant analysis
- feature selection
- pattern recognition and machine learning
- visual features
- lower dimensional
- visual words
- image search
- principal components
- low level features
- image annotation
- image collections
- euclidean distance
- structure preserving
- image content
- image classification
- linear projection
- retrieved images
- linear dimensionality reduction
- text retrieval
- retrieval accuracy
- multiple feature fusion
- retrieval process
- content based retrieval
- nearest neighbor
- color histogram
- multimedia retrieval
- kernel learning
- metric learning
- cross media
- data sets
- image matching
- image processing
- machine learning