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~ similar to 2607.23726· 20 results

stat.MLcs.LGstat.MEEmpiricalRecentJul 26, 2026

Two-Timescale Hierarchical Reinforcement Learning for Resilient Operations

Young Hyun Cho, Franz Stoll, Will Wei Sun, Guang Lin +1 more

This paper proposes a hierarchical reinforcement learning framework to adapt interdependent long-term and short-term policies in global operations, improving resilience and profit.

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cs.LGcs.AIRecentMay 28, 2026

HPO: Hysteretic Policy Optimization for Stable and Efficient Training under Sparse-Reward Regime

Mohamed Sana, Nicola Piovesan, Antonio De Domenico, Fadhel Ayed +1 more

The paper proposes Hysteretic Policy Optimization (HPO) and its adaptive variant (A-HPO) to stabilize reinforcement learning training in sparse-reward environments by better balancing positive and neg…

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cs.LGcs.AIRecentMay 29, 2026

Reinforcement Learning with Pairwise Preferences in Long-Term Decision Problems

Jonathan Colaço Carr, Prakash Panangaden, Doina Precup, Benjamin Van Roy

The paper introduces the Markov decision contest, a new framework for reinforcement learning using pairwise preferences, and proves that stationary Markov policies are optimal and solvable efficiently…

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cs.LGcs.AIRecentMay 29, 2026

When are LLMs Sufficient Policy Optimizers for Sequential RL Tasks?

Stephane Hatgis-Kessell, Emma Brunskill

The paper introduces Prompted Policy Optimization (PromptPO), an LLM-based method that successfully optimizes policies for various sequential RL tasks, demonstrating that LLMs can replace classical RL…

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cs.LGcs.AIcs.CVEmpiricalRecentJul 8, 2026

Selective Timestep Weighting and Advantage-Based Replay for Sample-Efficient Diffusion RLHF

Eric Zhu, Abhinav Shrivastava, Soumik Mukhopadhyay

This paper proposes two strategies to improve feedback efficiency of reinforcement learning from human feedback (RLHF) in diffusion models.

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cs.AIRecentMay 27, 2026

Deconstructing Spatial Complexity: Hierarchical Decomposition for LLM Spatial Reasoning

Yi Wang, Haojie Lu, Zhaofan Zhang, Li Chen +1 more

This paper introduces MCTS-Guided Group Relative Policy Optimization (M-GRPO) to enhance LLM spatial reasoning by improving the decomposition of complex tasks into optimal sub-tasks.

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cs.ROcs.AIRecentJun 2, 2026

Self-Refining Agentic Reinforcement Learning for Vision-Conditioned UAV Navigation

Roohan Ahmed Khan, Yasheerah Yaqoot, Muhammad Ahsan Mustafa, Dzmitry Tsetserukou

The paper introduces AgenticRL, a self-refining reinforcement learning framework that uses a multimodal GPT agent to automatically design, refine, and deploy reward functions for complex UAV navigatio…

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cs.MAEmpiricalRecentJun 29, 2026

Sparse Sensor Placement in Multi-Agent Reinforcement Learning Control of Rayleigh-Bénard Convection

Jan Stenner, Hans Harder, Sebastian Peitz

This paper trains sparse sensor policies for Rayleigh-Bénard convection control using multi-agent reinforce learning and grouped regularization.

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cs.LGcs.AIRecentMay 29, 2026

Smaller Models are Natural Explorers for Policy-Level Diversity in GRPO

Yiming Ren, Yiran Xu, Zicheng Lin, Chufan Shi +7 more

The paper proposes S2L-PO, a framework that uses smaller, naturally diverse models as structured explorers to enhance the policy-level diversity and performance of larger language models during traini…

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cs.LGcs.AIRecentMay 29, 2026

Annealed Softmax Greedy in Many-Armed Bayesian Bandits

William Overman, Mohsen Bayati

The paper analyzes the performance of an annealed softmax policy in a Bayesian bandit setting, proving that under specific prior conditions, it achieves near-optimal regret rates by effectively sampli…

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cs.LGcs.AIstat.MLRecentMay 29, 2026

Why Linear Recurrent Memory Works in Partially Observable Reinforcement Learning

Yike Zhao, Onno Eberhard, Malek Khammassi, Ali H. Sayed +1 more

This paper theoretically justifies the strong performance of linear recurrent neural networks as memory units in partially observable reinforcement learning by constructing specific linear filters tha…

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cs.LGcs.AIcs.CVRecentMay 27, 2026

OISD: On-Policy Internal Self-Distillation of Language Models

Xinyu Liu, Darryl Cherian Jacob, Yang Zhou, Jindong Wang +1 more

The OISD framework improves language model reasoning by distilling on-policy predictive signals from the final output layer to intermediate representations, leading to substantial improvements on math…

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cs.LGRecentJun 1, 2026

Coherent Off-Policy Improvement of Large Behavior Models with Learned Rewards

Christian Scherer, Joe Watson, Theo Gruner, Daniel Palenicek +2 more

The paper proposes a coherent inverse reinforcement learning (IRL) method to improve large behavior models for robotic control, achieving superior sample efficiency and performance on complex sparse m…

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cs.AIRecentMay 27, 2026

Global Policy-Space Response Oracles for Two-Player Zero-Sum Games

Junyu Zhang, Feihong Yang, Jian Wang, Chao Wang +1 more

The paper introduces Global PSRO, a novel deep reinforcement learning framework that efficiently approximates Nash equilibria in large two-player zero-sum games by intelligently expanding the strategy…

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cs.LGcs.AIRecentJun 2, 2026

Using Reward Uncertainty to Induce Diverse Behaviour in Reinforcement Learning

Anthony GX-Chen, Ankit Anand, Gheorghe Comanici, Zaheer Abbas +6 more

The paper proposes a novel RL framework that naturally induces diverse agent behavior by reformulating the objective to treat the reward as a distribution over functions, making diversity a rational r…

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