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arXiv 1502.01822math.NAcs.NA
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通过Kaczmarz方法求解相位less方程组:概念验证研究

Solving systems of phaseless equations via Kaczmarz methods: A proof of concept study

Hong Kong University of Science and Technology(香港科技大学)

Ke Wei

AI总结:

本文研究了通过Kaczmarz方法求解二次方程组(即广义相位恢复问题)的方法,展示了其在恢复成功率和计算时间上的优势。

摘要:

我们研究了用于求解二次方程组(即广义相位恢复问题)的Kaczmarz方法。这些方法通过在每次迭代中整合相位选择启发式方法扩展了用于求解线性方程组的Kaczmarz方法,并且总体上具有相同的每次迭代计算复杂度。广泛的实证性能比较确立了Kaczmarz方法在所需测量数量和计算时间方面优于其他最先进的相位恢复算法。对随机Kaczmarz方法进行了初步收敛分析。

英文摘要:

We study the Kaczmarz methods for solving systems of quadratic equations, i.e., the generalized phase retrieval problem. The methods extend the Kaczmarz methods for solving systems of linear equations by integrating a phase selection heuristic in each iteration and overall have the same per iteration computational complexity. Extensive empirical performance comparisons establish the computational advantages of the Kaczmarz methods over other state-of-the-art phase retrieval algorithms both in terms of the number of measurements needed for successful recovery and in terms of computation time. Preliminary convergence analysis is presented for the randomized Kaczmarz methods.

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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