9 citations · 20 across the 4 of their papers we have counts for
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Linear convergence of the Randomized Sparse Kaczmarz Method
Frank Schöpfer, Dirk A. Lorenz
The randomized version of the Kaczmarz method for the solution of linear systems is known to converge linearly in expectation. In this work we extend this result and show that the…
Cost-Optimal Operation of Energy Storage Units: Benefits of a Problem-Specific Approach
Lars Siemer, Frank Schöpfer, David Kleinhans
The integration of large shares of electricity produced by non-dispatchable Renewable Energy Sources (RES) leads to an increasingly volatile energy generation side, with temporary…
A sparse Kaczmarz solver and a linearized Bregman method for online compressed sensing
Dirk A. Lorenz, Stephan Wenger, Frank Schöpfer +1
An algorithmic framework to compute sparse or minimal-TV solutions of linear systems is proposed. The framework includes both the Kaczmarz method and the linearized Bregman method…
The Linearized Bregman Method via Split Feasibility Problems: Analysis and Generalizations
Dirk A. Lorenz, Frank Schöpfer, Stephan Wenger
The linearized Bregman method is a method to calculate sparse solutions to systems of linear equations. We formulate this problem as a split feasibility problem, propose an algorit…