基于埃特金加速的改进Landweber迭代正则化方法

Mathematics in Practice and Theory(2014)

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Abstract
为克服Landweber迭代正则化方法在求解大规模不适定问题时收敛速度慢的不足,将埃特金加速技巧与不动点迭代相结合,构建了能快速收敛的改进Landweber迭代正则化方法.数值实验结果表明:改进的迭代正则化方法在稳定求解不适定问题时,能够快速地收敛至问题的最优解,较Landweber迭代正则化方法大大提高了收敛速度.
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Key words
aitken acceleration,landweber iteration regularization,ill-posed problem,operator equation
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