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arXiv 1406.2648math.NAcs.DScs.NA
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快速矩阵乘法与抽样

Fast Matrix Multiplication with Sketching

Huan Wang, Christos Boutsidis, Edo Liberty, Daniel Hsu

AI总结:

本文提出基于矩阵抽样技术的近似矩阵乘法算法,通过稀疏化矩阵降低计算成本,证明在样本数足够大时算法精度与现有方法相当。

摘要:

我们提出了一种基于矩阵抽样技术的近似矩阵乘法算法。首先,通过在线矩阵抽样算法对其中一个矩阵进行稀疏化处理,然后利用稀疏化后的矩阵计算乘积。我们证明当样本数量相对于样本维度增长时,所提出的算法在计算成本上优于现有最先进算法,同时达到相似的精度界。

英文摘要:

We present an approximate algorithm for matrix multiplication based on matrix sketching techniques. First one of the matrix is chosen and sparsified using the online matrix sketching algorithm, and then the matrix product is calculated using the sparsified matrix. We prove when the sample number grows large compared to the sample dimensions the proposed algorithm achieves similar accuracy bound with a smaller computational cost compared to the state-of-the-art algorithms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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