Keyphrases
- feature selection
- unsupervised learning
- clustering method
- clustering algorithm
- unsupervised feature selection
- k means
- information theoretic
- mutual information
- text categorization
- feature extraction
- high dimensionality
- class separability
- hierarchical clustering
- data clustering
- self organizing maps
- support vector
- classification accuracy
- model selection
- text classification
- training data
- similarity measure
- document clustering
- spectral clustering
- graph theoretic
- clustering analysis
- small sample
- multi class
- principal component analysis