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最小一乘方松弛计算法 被引量:2
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作者 李正最 吴雅琴 《水文》 CSCD 北大核心 2000年第3期9-12,共4页
以加权最小二乘法为基础的最小一乘方松弛算法,能有效削弱异常数据的影响,获得更稳健的回归方程。该算法适用于多无线性回归模型的参数估计,并以实例验证了该算法的稳健性。
关键词 最小一乘方 松弛计算法 参数估计 水文变量
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Parallel rapid relaxation inversion of 3D magnetotelluric data 被引量:8
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作者 林昌洪 谭捍东 佟拓 《Applied Geophysics》 SCIE CSCD 2009年第1期77-83,104,共8页
We implement a parallel algorithm with the advantage of MPI (Message Passing Interface) to speed up the rapid relaxation inversion for 3D magnetotelluric data. We test the parallel rapid relaxation algorithm with sy... We implement a parallel algorithm with the advantage of MPI (Message Passing Interface) to speed up the rapid relaxation inversion for 3D magnetotelluric data. We test the parallel rapid relaxation algorithm with synthetic and real data. The execution efficiency of the algorithm for several different situations is also compared. The results indicate that the parallel rapid relaxation algorithm for 3D magnetotelluric inversion is effective. This parallel algorithm implemented on a common PC promotes the practical application of 3D magnetotelluric inversion and can be suitable for the other geophysical 3D modeling and inversion. 展开更多
关键词 MAGNETOTELLURIC MPI 3D rapid relaxation inversion parallel algorithm
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