Zobrazeno 1 - 10
of 24 353
pro vyhledávání: '"A. Römer"'
The detection of phase transitions is a fundamental challenge in condensed matter physics, traditionally addressed through analytical methods and direct numerical simulations. In recent years, machine learning techniques have emerged as powerful tool
Externí odkaz:
http://arxiv.org/abs/2409.03023
Autor:
Paul, Lennart, Urrea-Quintero, Jorge-Humberto, Fiaz, Umer, Hussein, Ali, Yaghi, Hazem, Wessels, Henning, Römer, Ulrich, Stahlmann, Joachim
This work introduces a surrogate modeling approach for an emplacement drift of a deep geological repository based on Gaussian Processes (GPs). The surrogate model is used as a substitute for the high-fidelity mechanical model in many-query scenarios,
Externí odkaz:
http://arxiv.org/abs/2409.02576
For studying intrusion detection data we consider data points referring to individual IP addresses and their connections: We build networks associated with those data points, such that vertices in a graph are associated via the respective IP addresse
Externí odkaz:
http://arxiv.org/abs/2408.09788
The long runtime associated with simulating multidisciplinary systems challenges the use of Bayesian optimization for multidisciplinary design optimization (MDO). This is particularly the case if the coupled system is modeled in a partitioned manner
Externí odkaz:
http://arxiv.org/abs/2408.08691
This contribution combines a low-rank matrix approximation through Singular Value Decomposition (SVD) with second-order Krylov subspace-based Model Order Reduction (MOR), in order to efficiently propagate input uncertainties through a given vibroacou
Externí odkaz:
http://arxiv.org/abs/2408.08402
Autor:
Priebe, Domenik, Pohl, Nik, AlBaraghtheh, Tamadur, Schimek, Sven, Wieland, Florian, Krüger, Diana, Trostorff, Sascha, Willumeit-Römer, Regine, Köhl, Ralf, Zeller-Plumhoff, Berit
In silico testing of implant materials is a research area of high interest, as cost- and labour-intensive experiments may be omitted. However, assessing the tissue-material interaction mathematically and computationally can be very complex, in partic
Externí odkaz:
http://arxiv.org/abs/2408.03820
Predictive modeling involving simulation and sensor data at the same time, is a growing challenge in computational science. Even with large-scale finite element models, a mismatch to the sensor data often remains, which can be attributed to different
Externí odkaz:
http://arxiv.org/abs/2407.04438
Autor:
Gao, Yilun, Römer, Rudolf A.
We study the many-body localization problem in the non-abelian SU(2)-invariant random anti-ferromagnetic exchange model in 1D. Exact and sparse matrix diagonalization methods are used to calculate eigenvalues and eigenvectors of the Hamiltonian matri
Externí odkaz:
http://arxiv.org/abs/2406.09985
Autor:
Anton, David, Tröger, Jendrik-Alexander, Wessels, Henning, Römer, Ulrich, Henkes, Alexander, Hartmann, Stefan
The calibration of constitutive models from full-field data has recently gained increasing interest due to improvements in full-field measurement capabilities. In addition to the experimental characterization of novel materials, continuous structural
Externí odkaz:
http://arxiv.org/abs/2405.18311
The origin of superconductivity in FeSe monolayer on SrTiO$_3$ belongs to one of the unresolved mysteries in condensed-matter physics. Here by investigation of the temperature evolution of the dynamic charge response of FeSe/SrTiO$_3$ we demonstrate
Externí odkaz:
http://arxiv.org/abs/2405.16910