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"Active-set complexity" of proximal gradient: How long does it take to find the sparsity pattern?

Julie NutiniMark SchmidtWarren L. Hare
Published in: Optim. Lett. (2019)
Keyphrases
  • active set
  • efficient implementation
  • computational complexity
  • worst case
  • nonnegative matrix factorization
  • sparse representation