125 citations · 684 across the 34 of their papers we have counts for
3 papers · 2 filters
SuperMann: a superlinearly convergent algorithm for finding fixed points of nonexpansive operators
Andreas Themelis, Panagiotis Patrinos
Operator splitting techniques have recently gained popularity in convex optimization problems arising in various control fields. Being fixed-point iterations of nonexpansive operat…
Forward-backward envelope for the sum of two nonconvex functions: Further properties and nonmonotone line-search algorithms
Andreas Themelis, Lorenzo Stella, Panagiotis Patrinos
We propose ZeroFPR, a nonmonotone linesearch algorithm for minimizing the sum of two nonconvex functions, one of which is smooth and the other possibly nonsmooth. ZeroFPR is the fi…
Forward-backward quasi-Newton methods for nonsmooth optimization problems
Lorenzo Stella, Andreas Themelis, Panagiotis Patrinos
The forward-backward splitting method (FBS) for minimizing a nonsmooth composite function can be interpreted as a (variable-metric) gradient method over a continuously differentiab…