Heuristic Parameter-Choice Rules for Convex Variational Regularization Based on Error Estimates

  • Authors:
  • Bangti Jin;Dirk A. Lorenz

  • Affiliations:
  • btjin@math.uni-bremen.de;d.lorenz@tu-braunschweig.de

  • Venue:
  • SIAM Journal on Numerical Analysis
  • Year:
  • 2010

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Abstract

In this paper, we are interested in heuristic parameter-choice rules for general convex variational regularization which are based on error estimates. Two such rules are derived and generalize those from quadratic regularization, namely, the Hanke-Raus rule and quasi-optimality criterion. A posteriori error estimates are shown for the Hanke-Raus rule, and convergence for both rules is also discussed. Numerical results for both rules are presented to illustrate their applicability.