Semi-supervised learning of sparse representations to recognize people spatial orientation.
Nicoletta NocetiFrancesca OdonePublished in: ICIP (2014)
Keyphrases
- semi supervised learning
- sparse representation
- dictionary learning
- semi supervised
- unlabeled data
- sparse coding
- labeled data
- unsupervised learning
- supervised learning
- compressive sensing
- image classification
- negative matrix factorization
- image patches
- face recognition
- machine learning
- training data
- random projections
- regularized least squares
- signal processing
- high dimensional data
- active learning
- learning problems
- image representation
- transfer learning
- dimensionality reduction
- generative model
- pairwise
- label propagation
- regularization framework
- principal component analysis
- convex optimization
- image reconstruction
- labeled and unlabeled data