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New algorithms tackle adversarial linear MDPs and bandits with improved regret bounds · 2 sources tracked

Two new research papers published on arXiv introduce novel algorithms for adversarial linear Markov decision processes (MDPs) and generalized linear bandits. The first paper presents a computationally efficient algorithm that achieves a $\sqrt{K}$ regret bound for adversarial linear MDPs with bandit feedback, improving upon existing methods that are either inefficient or offer suboptimal regret. The second paper introduces HCW-GLB-OMD, an algorithm for heteroskedastic generalized linear bandits with adversarial corruptions, which achieves a near-optimal regret bound and requires minimal storage and computation. AI

IMPACT These papers advance theoretical understanding and algorithmic efficiency in reinforcement learning, potentially leading to more robust and performant AI systems in complex, uncertain environments.

RANK_REASON Two academic papers published on arXiv detailing new algorithms for reinforcement learning and bandit problems.

Read on arXiv cs.LG →

AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

New algorithms tackle adversarial linear MDPs and bandits with improved regret bounds · 2 sources tracked

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Two academic papers published on arXiv detailing new algorithms for reinforcement learning and bandit problems.
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COVERAGE [2]

  1. arXiv cs.LG TIER_1 English(EN) · Haolin Liu, Chen-Yu Wei, Hanbin Zhou ·

    A Computationally Efficient and Rate-Optimal Algorithm for Adversarial Linear MDPs with (Aggregate) Bandit Feedback

    arXiv:2610.30801v1 Announce Type: new Abstract: We study episodic linear Markov decision processes with unknown transitions, adversarial losses, and bandit feedback. The state-of-the-art result for this setting (Liu et al., 2024) either achieves $\sqrt{K}$ regret with a computati…

  2. arXiv cs.LG TIER_1 English(EN) · Sanghwa Kim, Junghyun Lee, Se-Young Yun ·

    A Jointly Efficient and Near-Optimal Algorithm for Heteroskedastic Generalized Linear Bandits with Adversarial Corruptions

    arXiv:2602.10971v3 Announce Type: replace Abstract: We consider heteroskedastic generalized linear bandits (GLBs) with adversarial corruptions and propose \texttt{HCW-GLB-OMD}, a simple algorithm that combines an online mirror descent (OMD)-based estimator with Hessian-based conf…