Keyphrases
- feature selection
- text categorization
- machine learning
- feature extraction
- classification accuracy
- model selection
- distance measure
- linear dimensionality reduction
- unsupervised feature selection
- mutual information
- dimensionality reduction
- feature set
- feature space
- distance function
- euclidean distance
- classification models
- information gain
- feature weighting
- learning algorithm
- distance measurement
- support vector
- irrelevant features
- small sample
- feature subset
- high dimensionality
- support vector machine
- text classification