Proximal Newton-Type Methods for Minimizing Composite Functions

By Jason D. Lee, Yuekai Sun, Michael A. Saunders. SIAM Journal on Optimization, 2012

340 citations recorded by the source corpus.

We generalize Newton-type methods for minimizing smooth functions to handle a sum of two convex functions: a smooth function and a nonsmooth function with a simple proximal mapping. We show that the resulting proximal Newton-type methods inherit the desirable convergence behavior of Newton-type methods for minimizing smooth functions, even when search directions are computed inexactly. Many popular methods tailored to problems arising in bioinformatics, signal processing, and statistical learning are special cases of proximal Newton-type methods, and our analysis yields new convergence results for some of these methods.

Subfields: Computational Mechanics, Rheumatology

View Paper: https://www.semanticscholar.org/paper/2bb68a922f767a2da45e0f4b796b020e4ebf0750

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In Computational Mechanics

  1. Peter Richtárik
  2. Francis R. Bach
  3. Robert Tibshirani
  4. Martin Jaggi
  5. Martin J. Wainwright
  6. Yuchen Zhang
  7. Martin Takác
  8. Stephen J. Wright

In Rheumatology

  1. Francis R. Bach
  2. Dmitrii Ostrovskii
  3. James T. Kwok
  4. Sebastian Pokutta
  5. Shusen Wang
  6. Lin Xiao
  7. Alejandro Carderera
  8. Martin J. Wainwright

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