Feature reduction using mixture model of directional distributions.
Nguyen Duc ThangLihui ChenChee Keong ChanPublished in: ICARCV (2008)
Keyphrases
- mixture model
- von mises fisher
- feature reduction
- rough sets
- gaussian mixture model
- text categorization
- generative model
- em algorithm
- probabilistic model
- dirichlet distribution
- feature set
- unit sphere
- random forest
- gaussian densities
- feature selection
- texture segmentation
- dirichlet process
- viterbi algorithm
- model selection
- maximum likelihood
- reduction method
- language model
- classification accuracy
- expectation maximization
- linear discriminant analysis
- unsupervised learning
- multi variate
- text classification
- information retrieval
- support vector machine
- training data
- machine learning
- k nearest neighbor
- multiresolution
- knn
- principal component analysis
- neural network