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English(EN) Accurate Trace Estimation with Fewer Random Bits via Recursive TensorSketch

新的递归 TensorSketch 方法减少了矩阵迹估计所需的随机比特数量

研究人员开发了一种估算大型隐式矩阵迹的新方法,这项工作计算量可能很大。这种新颖的方法,称为递归 TensorSketch,与现有的 Hutchinson 迹估计器等方法相比,显著减少了所需的随机比特数量。所提出的技术在保持无偏估计和多项式界定与矩阵维度相关的方差的同时实现了这种效率,解决了先前工作的局限性。 AI

影响 这项研究可能为依赖矩阵运算的大规模机器学习模型带来更高效的计算。

排序理由 该集群包含一篇详细介绍特定计算问题的新的算法方法的论文。[lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv cs.LG 阅读 →

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新的递归 TensorSketch 方法减少了矩阵迹估计所需的随机比特数量

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该集群包含一篇详细介绍特定计算问题的新的算法方法的论文。[lever_c_demoted from research: ic=1 ai=1.0]
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报道来源 [1]

  1. arXiv cs.LG TIER_1 English(EN) · Mohammad Azhar Khan, Rameshwar Pratap, Amit Sharma ·

    通过递归张量草图用更少的随机比特实现精确轨迹估计

    arXiv:2609.18577v1 Announce Type: new Abstract: We consider the problem of estimating the trace of an implicit matrix $\mathbf{A} \in \mathbb{R}^{d^p\times d^p}$ that can only be accessed through matrix-vector products queries. The \textit{Hutchinson trace estimator}% ~\cite{Gira…