WIAS Preprint List: Papafitsoros, Kostas
- 2964: Dong, Guozhi; Hintermüller, Michael; Papafitsoros, Kostas
A descent algorithm for the optimal control of ReLU neural network informed PDEs based on approximate directional derivatives
- 2940: Dong, Guozhi; Hintermüller, Michael; Papafitsoros, Kostas; Völkner, Kathrin
First-order conditions for the optimal control of learning-informed nonsmooth PDEs
- 2754: Dong, Guozhi; Hintermüller, Michael; Papafitsoros, Kostas
Optimization with learning-informed differential equation constraints and its applications
Appeared in: ESAIM Control Optim. Calc. Var., 28 (2022), pp. 3/1--3/44, DOI 10.1051/cocv/2021100 . - 2689: Hintermüller, Michael; Papafitsoros, Kostas; Rautenberg, Carlos N.; Sun, Hongpeng
Dualization and automatic distributed parameter selection of total generalized variation via bilevel optimization
Appeared in: Numer. Funct. Anal. Optim., 43 (2022), pp. 887--932, DOI 10.1080/01630563.2022.2069812 . - 2628: Hintermüller, Michael; Papafitsoros, Kostas; Rautenberg, Carlos N.
Variable step mollifiers and applications
Appeared in: Integral Equations Operator Theory, 92 (2020), 53, DOI 10.1007/s00020-020-02608-2 . - 2611: Hintermüller, Michael; Papafitsoros, Kostas
Generating structured non-smooth priors and associated primal-dual methods
Appeared in: M. Hintermüller, K. Papafitsoros, Chapter 11: Generating Structured Nonsmooth Priors and Associated Primal-dual Methods, in: Processing, Analyzing and Learning of Images, Shapes, and Forms: Part 2 , R. Kimmel, X.-Ch. Tai, eds., vol. 20 of Handbook of Numerical Analysis, Elsevier, 2019, pp. 437--502, DOI 10.1016/bs.hna.2019.08.001 . - 2542: Calatroni, Luca; Papafitsoros, Kostas
Analysis and optimisation of a variational model for mixed Gaussian and Salt & Pepper noise removal
Appeared in: Inverse Probl., 35 (2019), pp. 114001/1-114001/37, DOI 10.1088/1361-6420/ab291a with the new title Analysis and automatic parameter selection of a variational model for mixed Gaussian and salt-and-pepper noise removal - 2528: Dong, Guozhi; Hintermüller, Michael; Papafitsoros, Kostas
A physically oriented method for quantitative magnetic resonance imaging
Appeared in: SIAM J. Imaging Sci., 2 (2019), pp. 927-971, DOI 10.1137/18M1222211 . - 2520: Polzehl, Jörg; Papafitsoros, Kostas; Tabelow, Karsten
Patch-wise adaptive weights smoothing
Appeared in: J. Statist. Software, 95 (2020), pp. 1--27, DOI 10.18637/jss.v095.i06 . - 2437: Hintermüller, Michael; Holler, Martin; Papafitsoros, Kostas
A function space framework for structural total variation regularization with applications in inverse problems
Appeared in: Inverse Problems, 34 (2018), pp. 064002/1--064002/39, DOI 10.1088/1361-6420/aab586 .