Keyphrases
- outlier detection
- subspace learning
- dimensionality reduction
- manifold learning
- detection algorithm
- knowledge discovery
- sparse representation
- density ratio estimation
- detecting outliers
- low dimensional
- sparse coding
- data streams
- density estimation
- data representation
- principal component analysis
- face recognition
- data mining
- semi supervised
- affine invariant
- high dimensional data
- detect outliers
- learning algorithm
- image processing
- databases
- distance based outlier detection
- natural images
- high dimensional
- feature extraction
- feature selection
- machine learning
- real world