Robert Mohr
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View article: Lustre Unveiled: Evolution, Design, Advancements, and Current Trends
Lustre Unveiled: Evolution, Design, Advancements, and Current Trends Open
The Lustre filesystem serves as a vital element in high-performance parallel storage, meeting the rising demands of scientific, research, and enterprise environments. Widely deployed across HPC environments, ranging from small-scale applic…
View article: Corrosion Testing of Bubbler Materials for LAW Vitrification (Rev. 0)
Corrosion Testing of Bubbler Materials for LAW Vitrification (Rev. 0) Open
This work involved crucible-scale corrosion tests using coupons of selected materials in the baseline glass formulations for the seven LAW Sub-Envelopes. The tests were performed with Inconel 690 and MA 758; per the Test Plan, selected tes…
View article: Globally optimal univariate spline approximations
Globally optimal univariate spline approximations Open
We revisit the problem of computing optimal spline approximations for univariate least-squares splines from a combinatorial optimization perspective. In contrast to most approaches from the literature we aim at globally optimal coefficient…
View article: Algorithms for Nonconvex Optimization Problems in Machine Learning and Statistics
Algorithms for Nonconvex Optimization Problems in Machine Learning and Statistics Open
The purpose of this thesis is the design of algorithms that can be used to determine optimal solutions to nonconvex data approximation problems. In Part I of this thesis, we consider a very general class of nonconvex and large-scale data a…
View article: An Adaptive Sample Size Trust-Region Method for Finite-Sum Minimization
An Adaptive Sample Size Trust-Region Method for Finite-Sum Minimization Open
We propose a trust-region method for finite-sum minimization with an adaptive sample size adjustment technique, which is practical in the sense that it leads to a globally convergent method that shows strong performance empirically without…