Exemplar-Based Sparse Representation for Language Recognition on I-Vectors.
Bing JiangYan SongWu GuoLi-Rong DaiPublished in: INTERSPEECH (2012)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- basis vectors
- face recognition
- image classification
- joint optimization
- compressed sensing
- compressive sensing
- signal processing
- image patches
- reconstruction error
- random projections
- object tracking
- piecewise smooth
- object recognition
- regularized least squares
- image representation
- feature extraction
- negative matrix factorization
- sparse approximations
- high dimensional data
- pattern recognition
- test images
- action recognition
- feature vectors
- computer vision
- unsupervised learning
- low dimensional
- subspace learning
- denoising
- nearest neighbor
- image processing
- sparse learning
- sparse reconstruction
- sparse codes
- neural network