Exemplar-Based Sparse Representations for Noise Robust Automatic Speech Recognition.
Jort F. GemmekeTuomas VirtanenAntti HurmalainenPublished in: IEEE Trans. Speech Audio Process. (2011)
Keyphrases
- automatic speech recognition
- noisy environments
- sparse representation
- speech recognition
- dictionary learning
- speech signal
- noise reduction
- hidden markov models
- image classification
- sparse coding
- joint optimization
- spoken words
- conversational speech
- word error rate
- image representation
- image patches
- norm minimization
- sparse reconstruction
- pattern recognition
- signal processing
- compressive sensing
- broadcast news
- data mining
- recognition errors
- regularized least squares
- missing data
- signal to noise ratio
- denoising
- dimensionality reduction
- unsupervised learning
- non stationary
- face recognition
- speech corpus
- speech retrieval
- test images