Sparse Representation of Multivariate Extremes with Applications to Anomaly Ranking.
Nicolas GoixAnne SabourinStéphan ClémençonPublished in: AISTATS (2016)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- face recognition
- compressed sensing
- image patches
- image classification
- random projections
- signal processing
- dimensionality reduction
- image representation
- sparse approximations
- joint optimization
- compressive sensing
- negative matrix factorization
- reconstruction error
- high dimensional data
- regularized least squares
- piecewise smooth
- regression model
- ranked list
- feature extraction
- image processing
- data sets
- object recognition
- pattern recognition
- computer vision
- sparse reconstruction