Some Remarks on the Choice of Regularization Parameters under Multiple-Precision Arithmetic
Some Remarks on the Choice of Regularization Parameters under Multiple-Precision Arithmetic
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关于多精度算法下正则化参数选择的几点思考
DOI:
10.11345/nctam.51.387
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发表时间:
2002
期刊:
影响因子:
--
通讯作者:
Y. Iso
中科院分区:
文献类型:
--
作者:
H. Fujiwara;Y. Iso
We precisely discuss the choice of a parameter in regularization schemes for ill-posed problems under a multiple-precision arithmetic environment. A regularization scheme gives a mathematically well-posed equation in a suitable space, however, its discretizations become ill-conditioned for small regularization parameters, and precise numerical computation seems impossible in the double precision computing environment.