Sparse coding of human motion trajectories with non-negative matrix factorization.
Christian VollmerSven HellbachJulian EggertHorst-Michael GrossPublished in: Neurocomputing (2014)
Keyphrases
- negative matrix factorization
- sparse representation
- sparse coding
- dictionary learning
- sparsity constraints
- nonnegative matrix factorization
- image classification
- face recognition
- image patches
- natural images
- image representation
- subspace learning
- high dimensional data
- linear combination
- generative model
- signal processing
- document clustering
- image features
- unsupervised learning
- visual words
- dimensionality reduction
- manifold learning
- matrix factorization
- co occurrence
- text mining
- learning algorithm