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Thomas Bäck

3 papers indexed

openalexACM Transactions on Evolutionary Learning and Optimization2026-07-23

Solving Deep Reinforcement Learning Tasks with Evolution Strategies and Linear Policy Networks

Annie Wong, Jacob de Nobel, Thomas Bäck, Aske Plaat, Anna V. Kononova

Although deep reinforcement learning methods can learn effective policies for challenging problems, the underlying algorithms are complex, and training times are often long. This study investigates how several state-of-the-art versions of Evolution Strategies perform compared to…

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arxivcs.NEcs.CE2026-07-08

Sampling on Random Subspaces under Limited Data in the Context of Exploratory Landscape Analysis

Iván Olarte Rodríguez, Anja Jankovic, Thomas Bäck, Elena Raponi

Classical space-filling designs often fail to provide reliable statistical results for Exploratory Landscape Analysis (ELA) when only limited evaluation budgets are available, as commonly occurs in high-dimensional problems or other resource-constrained settings, resulting in noi…

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arxivcs.NEcs.AI2026-07-06

LLM-Driven Evolutionary Generation of Multi-Objective Bayesian Optimization Algorithms

Georgios Laskaris, Reuben Brasher, Niki van Stein, Elena Raponi, Thomas Bäck, Florian Neukart

Designing effective multi-objective Bayesian optimization (MOBO) algorithms requires balancing many interdependent design choices whose optimal configuration is problem-dependent and typically demands deep expertise. We extend the LLaMEA framework to MOBO, using large language mo…

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