Discriminative Estimation of Subspace Constrained Gaussian Mixture Models for Speech Recognition.
Scott AxelrodVaibhava GoelRamesh A. GopinathPeder A. OlsenKarthik VisweswariahPublished in: IEEE Trans. Speech Audio Process. (2007)
Keyphrases
- speech recognition
- gaussian mixture model
- speaker identification
- speaker recognition
- mixture model
- covariance matrices
- feature space
- maximum likelihood criterion
- hidden markov models
- language model
- speech signal
- automatic speech recognition
- speech synthesis
- em algorithm
- mel frequency cepstral coefficients
- speech recognizer
- noisy environments
- feature extraction
- expectation maximization
- maximum likelihood
- feature vectors
- speaker independent
- speech recognition systems
- pattern recognition
- probabilistic neural network
- gaussian distribution
- unsupervised learning
- semi supervised
- feature selection
- probability density function
- low dimensional
- dimensionality reduction
- principal component analysis
- image processing
- discriminative training
- vector quantization
- probabilistic model
- cepstral coefficients