Sparsity based robust speaker identification using a discriminative dictionary learning approach.
Christos TzagkarakisAthanasios MouchtarisPublished in: EUSIPCO (2013)
Keyphrases
- dictionary learning
- sparse representation
- speaker identification
- sparsity constraints
- object category recognition
- sparse codes
- sparse coding
- noisy environments
- feature extraction
- face recognition
- sparse representation based classification
- speech recognition
- image classification
- image patches
- gaussian mixture model
- image representation
- natural images
- high dimensional data
- noise reduction
- speech signal
- active learning
- high dimensional
- machine learning
- unsupervised learning
- higher order
- multiscale
- discriminative dictionary