On the use of i-vector posterior distributions in Probabilistic Linear Discriminant Analysis.
Sandro CumaniOldrich PlchotPietro LafacePublished in: IEEE ACM Trans. Audio Speech Lang. Process. (2014)
Keyphrases
- linear discriminant analysis
- posterior distribution
- posterior probability
- discriminant analysis
- face recognition
- latent variables
- dimensionality reduction
- principal component analysis
- probability distribution
- markov chain monte carlo methods
- hyperparameters
- support vector
- probabilistic model
- parameter estimation
- high dimensional data
- feature extraction
- generative model
- bayesian framework
- feature space
- bayesian networks
- feature vectors
- maximum a posteriori
- support vector machine svm
- null space
- probability density function
- scatter matrix
- bayesian inference
- low dimensional
- image processing
- conditional probabilities
- random variables
- expectation maximization