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Martha White

3 papers indexed

arxivcs.LGcs.AI2026-07-14

Deconstructing Actor-Critic: A Large-scale Empirical Study of Design Components for Practitioners

Haseeb Shah, Lingwei Zhu, Adam White, Martha White

Reinforcement learning is increasingly being considered for controlling real-world systems, from fusion plasma and autonomous vehicles to drug discovery and drinking water treatment, where reliability is essential and tuning budgets are limited. Actor-critic algorithms share a se…

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arxivcs.LGcs.AI2026-06-29

Accelerating Q-learning through Efficient Value-Sharing across Actions

Prabhat Nagarajan, Brett Daley, Martha White, Marlos C. Machado

Action-values are foundational to many control algorithms such as Q-learning. Therefore learning action-values efficiently is central to reinforcement learning (RL). However, learning them can be slow, requiring many updates to move values from their initialization, typically nea…

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arxivcs.LG2026-06-26

Position: RL Researchers Need to Distinguish Between Solving Simulators and Using Simulators as a Proxy

Matthew Vandergrift, Esraa Elelimy, Martha White

One goal in reinforcement learning (RL) research is to understand general-purpose sequential decision-making, using benchmark simulators as a proxy for learning in deployment settings. When running experiments, however, the goal of achieving high performance in the simulator can…

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