Hierarchical feature selection for ranking.
Guichun HuaMin ZhangYiqun LiuShaoping MaLiyun RuPublished in: WWW (2010)
Keyphrases
- feature selection
- feature ranking
- accurate classification
- support vector
- ranking algorithm
- unsupervised learning
- web search
- hierarchical classification
- text categorization
- text classification
- mutual information
- multi class
- hierarchical structure
- classification models
- information gain
- link analysis
- selected features
- discriminative features
- irrelevant features
- dimensionality reduction
- small sample
- rank aggregation
- rank order
- neural network
- unsupervised feature selection
- hierarchical model
- evaluation measures
- ranked list
- learning to rank
- ranking functions
- feature set
- high dimensional
- feature space