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An improvement of the penalty decomposition method for sparse approximation.

Zhengshan DongWenxing Zhu
Published in: Signal Process. (2015)
Keyphrases
  • decomposition method
  • sparse approximation
  • decomposition algorithm
  • linear combination
  • sparse coding
  • noise model
  • gaussian process
  • objective function
  • machine learning
  • unsupervised learning
  • convex relaxation