Exemplar-Based Sparse Representation Features: From TIMIT to LVCSR.
Tara N. SainathBhuvana RamabhadranMichael PichenyDavid NahamooDimitri KanevskyPublished in: IEEE ACM Trans. Audio Speech Lang. Process. (2011)
Keyphrases
- sparse representation
- dictionary learning
- feature extraction
- sparse coding
- compressed sensing
- image classification
- signal processing
- image features
- face recognition
- basis vectors
- test images
- negative matrix factorization
- compressive sensing
- image representation
- reconstruction error
- sparse approximations
- random projections
- norm minimization
- feature vectors
- image patches
- co occurrence
- hidden markov models
- pattern recognition
- image processing
- feature analysis
- joint optimization
- machine learning
- regularized least squares
- data mining
- data sets