Keyphrases
- automatic construction
- unsupervised learning
- classification accuracy
- supervised classification
- pattern recognition
- keywords
- k means
- decision trees
- english words
- unsupervised classification
- short text
- feature selection
- unsupervised clustering
- classification method
- classification algorithm
- machine learning
- text documents
- data clustering
- image classification
- supervised learning
- clustering algorithm
- textual features
- spectral clustering
- self organizing maps
- high dimensionality
- support vector machine svm
- feature vectors
- document classification
- high dimensional data
- natural language text
- clustering analysis
- clustering method
- model selection
- support vector machine
- world knowledge
- support vector
- chinese texts