Classification of physical activities based on sparse representation.
Shaopeng LiuRobert X. GaoDinesh JohnJohn StaudenmayerPatty S. FreedsonPublished in: EMBC (2012)
Keyphrases
- sparse representation
- dictionary learning
- image classification
- sparse coding
- pattern recognition
- compressive sensing
- reconstruction error
- compressed sensing
- sparse reconstruction
- random projections
- face recognition
- unsupervised learning
- signal processing
- high dimensional data
- text classification
- negative matrix factorization
- machine learning
- piecewise smooth
- sparse codes
- feature space
- support vector
- neural network
- feature extraction
- decision trees
- sparse approximations
- joint optimization
- norm minimization
- image patches
- training samples
- image representation
- dimensionality reduction
- supervised learning
- support vector machine
- training set
- multiscale