Keyphrases
- metric learning
- sparse metric learning
- distance metric
- distance metric learning
- positive semi definite
- semi supervised
- dimensionality reduction
- pairwise
- multi task
- learning tasks
- high dimensional
- machine learning and pattern recognition
- distance function
- feature space
- semi supervised learning
- sparse representation
- data points
- mahalanobis metric
- kernel matrix
- computer vision
- background knowledge
- sparse coding
- pattern recognition
- margin maximization
- data sets
- nearest neighbor
- learning environment
- subject to linear constraints
- machine learning