Keyphrases
- face recognition
- latent dirichlet allocation
- linear discriminant analysis
- topic models
- face images
- discriminant analysis
- human faces
- facial images
- feature extraction
- topic modeling
- facial expressions
- dimension reduction
- face databases
- generative model
- dimensionality reduction
- keypoints
- recognition rate
- lighting conditions
- pattern recognition
- weighted sum
- video sequences
- face verification
- small sample size
- discriminating power
- lda model