Keyphrases
- latent dirichlet allocation
- topic models
- feature extraction
- classification accuracy
- pattern recognition
- information retrieval
- topic modeling
- text classification
- decision trees
- feature selection
- topic discovery
- image classification
- classification models
- learning algorithm
- cost sensitive
- feature space
- dimension reduction
- latent topics
- subspace methods
- linear discriminant analysis
- text documents
- benchmark datasets
- support vector machine svm
- dimensionality reduction
- classification algorithm
- ensemble methods
- training samples
- machine learning
- multiclass classification
- support vector machine
- majority voting
- weak learners
- subspace analysis
- face recognition