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English(EN) $α$-PFN: Fast Entropy Search via In-Context Learning

新的 $\alpha$-PFN 方法通过学习到的近似加速贝叶斯优化

研究人员开发了一种名为 $\alpha$-PFN 的新方法,以加速贝叶斯优化中使用的熵搜索 (ES) 获取函数。该方法利用先验数据拟合网络 (PFNs) 来学习 ES 的近似,用单次前向传播替换复杂且缓慢的蒙特卡洛估计。$\alpha$-PFN 系统分两个阶段进行训练,在各种基准测试中已证明其性能与最先进的 ES 实现相当,速度提升超过 50 倍。 AI

影响 加速贝叶斯优化,可能在 AI 研究中实现更快、更有效的超参数调整和实验设计。

排序理由 该集群包含一篇详细介绍新研究方法的学术论文。

在 arXiv cs.LG 阅读 →

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新的 $\alpha$-PFN 方法通过学习到的近似加速贝叶斯优化

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报道来源 [2]

  1. arXiv cs.LG TIER_1 English(EN) · Herilalaina Rakotoarison, Steven Adriaensen, Tom Viering, Carl Hvarfner, Samuel M\"uller, Frank Hutter, Eytan Bakshy ·

    $\alpha$-PFN:通过上下文学习实现快速熵搜索

    arXiv:2606.07134v1 Announce Type: new Abstract: Information-theoretic acquisition functions such as Entropy Search (ES) offer a principled exploration-exploitation framework for Bayesian optimization (BO). However, their practical implementation relies on complicated and slow app…

  2. arXiv cs.LG TIER_1 English(EN) · Eytan Bakshy ·

    $α$-PFN:通过上下文学习实现快速熵搜索

    Information-theoretic acquisition functions such as Entropy Search (ES) offer a principled exploration-exploitation framework for Bayesian optimization (BO). However, their practical implementation relies on complicated and slow approximations, i.e., a Monte Carlo estimation of t…