Probabilistic linear discriminant analysis of i-vector posterior distributions.
Sandro CumaniOldrich PlchotPietro LafacePublished in: ICASSP (2013)
Keyphrases
- linear discriminant analysis
- posterior distribution
- posterior probability
- discriminant analysis
- face recognition
- dimensionality reduction
- markov chain monte carlo methods
- principal component analysis
- latent variables
- bayesian framework
- probability distribution
- feature space
- support vector
- hyperparameters
- null space
- support vector machine svm
- feature extraction
- bayesian networks
- parameter estimation
- probabilistic model
- high dimensional data
- generative model
- feature vectors
- maximum a posteriori
- model selection
- pattern recognition
- nearest neighbor
- image processing
- em algorithm
- random variables
- gaussian mixture model
- expectation maximization
- graphical models
- denoising
- knn
- prior knowledge
- scatter matrix