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M. A. Bessa

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#machine learning Preprint Sep 2026

Bilevel Optimization of Topology and Hyperparameters (BOTH)

It is shown that evaluating just one or two steps of TO is sufficiently informative and that the method scales favorably to thousands of hyperparameters at an expense comparable to only a few standard TO runs, and that the method scales favorably to thousands of hyperparameters at an expense comparable to only a few st...

Suryanarayanan Manoj Sanu, M. A. Bessa, A. M. Aragón · 0 citations
#machine learning Preprint Sep 2026

Constitutive State-Space Modeling of Path-Dependent Plasticity: A Resolution-Consistent and Parallelizable Computational Framework

A Constitutive State Space (CSS) model is introduced that reformulates structured state-space dynamics as an incremental constitutive operator and establishes mechanics-tailored structured state-space dynamics as a computational framework for efficient and discretization-robust data-driven constitutive modeling.

Rui Barreira, Taylan Soydan, Francesco Scipione et al. · 0 citations
#machine learning Preprint Sep 2026

Reinforcement learning to choose optimizers

Reinforcement Learning to Choose Optimizers is introduced, which formulates the optimization algorithm choice as a sequential decision-making problem and outperforms every portfolio optimizer at all but the smallest budgets.

Martin P van der Schelling, D. Toshniwal, M. A. Bessa · 0 citations

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