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A Positive Semidefinite Safe Approximation of Multivariate Distributionally Robust Constraints Determined by Simple Functions

Autor: Dienstbier, J., Liers, F., Rolfes, J.

Single-level reformulations of (non-convex) distributionally robust optimization (DRO) problems are often intractable, as they contain semiinfinite dual constraints. Based on such a semiinfinite reformulation, we present a safe approximation, that al

Externí odkaz: http://arxiv.org/abs/2310.05612

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A Non-Disordered Glassy Model with a Tunable Interaction Range

Autor: Liers, F., Marinari, E., Pagacz, U., Ricci-Tersenghi, F., Schmitz, V.

Publikováno v: J. Stat. Mech. L05003 (2010)

We introduce a non-disordered lattice spin model, based on the principle of minimizing spin-spin correlations up to a (tunable) distance R. The model can be defined in any spatial dimension D, but already for D=1 and small values of R (e.g. R=5) the

Externí odkaz: http://arxiv.org/abs/0912.0848

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Magnetic exponents of two-dimensional Ising spin glasses

Autor: Liers, F., Martin, O. C.

Publikováno v: Phys. Rev. B 76, 060405 (2007).

The magnetic critical properties of two-dimensional Ising spin glasses are controversial. Using exact ground state determination, we extract the properties of clusters flipped when increasing continuously a uniform field. We show that these clusters

Externí odkaz: http://arxiv.org/abs/0704.1626

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Akademický článek

Improving reconstructions in nanotomography for homogeneous materials via mathematical optimization.

Autor: Kreuz S; Department of Data Science, Friedrich-Alexander-Universität Erlangen-Nürnberg Cauerstr. 11 91058 Erlangen Germany jan.rolfes@fau.de., Apeleo Zubiri B; Institute of Micro- and Nanostructure Research (IMN) & Center for Nanoanalysis and Electron Microscopy (CENEM), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg Cauerstr. 3 91058 Erlangen Germany benjamin.apeleo.zubiri@fau.de., Englisch S; Institute of Micro- and Nanostructure Research (IMN) & Center for Nanoanalysis and Electron Microscopy (CENEM), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg Cauerstr. 3 91058 Erlangen Germany benjamin.apeleo.zubiri@fau.de., Buwen M; Institute of Micro- and Nanostructure Research (IMN) & Center for Nanoanalysis and Electron Microscopy (CENEM), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg Cauerstr. 3 91058 Erlangen Germany benjamin.apeleo.zubiri@fau.de., Kang SG; Department Structure and Nano- / Micromechanics of Materials, Max-Planck-Institut für Eisenforschung GmbH Max-Planck-Str. 1 40237 Düsseldorf Germany r.ram@mpie.de.; Department of Materials Engineering and Convergence Technology, Gyeongsang National University Jinju-daero 501 52828 Jinju Republic of Korea., Ramachandramoorthy R; Department Structure and Nano- / Micromechanics of Materials, Max-Planck-Institut für Eisenforschung GmbH Max-Planck-Str. 1 40237 Düsseldorf Germany r.ram@mpie.de., Spiecker E; Institute of Micro- and Nanostructure Research (IMN) & Center for Nanoanalysis and Electron Microscopy (CENEM), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg Cauerstr. 3 91058 Erlangen Germany benjamin.apeleo.zubiri@fau.de., Liers F; Department of Data Science, Friedrich-Alexander-Universität Erlangen-Nürnberg Cauerstr. 11 91058 Erlangen Germany jan.rolfes@fau.de., Rolfes J; Department of Data Science, Friedrich-Alexander-Universität Erlangen-Nürnberg Cauerstr. 11 91058 Erlangen Germany jan.rolfes@fau.de.

Publikováno v: Nanoscale advances [Nanoscale Adv] 2024 Jun 03; Vol. 6 (15), pp. 3934-3947. Date of Electronic Publication: 2024 Jun 03 (Print Publication: 2024).

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