Keyphrases
- structural information
- hierarchical classification
- feature selection
- semantic information
- semantic content
- text classification
- hierarchical structure
- linguistic information
- classification algorithm
- structural similarity
- pairwise
- machine learning
- text categorization
- classification accuracy
- training data
- feature set
- logical structure
- feature extraction
- natural language
- training examples
- low level
- knn
- contextual information
- feature space
- support vector
- keywords
- image representation
- k nearest neighbor
- high level
- data mining