Principal Components for Automatic Term Hierarchy Building.
Georges DupretBenjamin PiwowarskiPublished in: SPIRE (2006)
Keyphrases
- principal components
- principal component analysis
- kernel space
- semi automatic
- dimensionality reduction
- principal components analysis
- hyperplane
- correlation coefficient
- term extraction
- multivariate data
- spectral data
- principal component regression
- weight vector
- fully automatic
- pattern recognition
- covariance matrix
- independent components
- logistic regression
- linear features
- feature set
- objective function