东篱科研大数据发现系统（DRDS）

位置：成果数据库 > 期刊 > 期刊详情页

HASM-AD Algorithm Based on the Sequential Least Squares

ISSN号：1009-5020
期刊名称：《地球空间信息科学学报：英文版》
时间：0
分类：TP301.5[自动化与计算机技术—计算机系统结构;自动化与计算机技术—计算机科学与技术] P207[天文地球—测绘科学与技术]
作者机构：[1]Institute of Geographic Science and Natural Resource Research, Chinese Academy of Science, Beijing 100101, China
相关基金：Supported by the National Science Fund for Distinguished Young Scholars （No. 40825003）; the Major Direclivity Projects of Chinese Academy of Science （No. kzcx2-yw-429）; the National High-tech R＆D Program of China （No. 2006AA12Z219）.

关键词：最小二乘, 空间插值方法, 计算复杂性, 序列, 算法, 整体解决方案, 计算时间, 内存使用, surface modeling, HASM, spatial interpolation, sequential least squares

中文摘要：

HASM (当模特儿的高精确性表面) 技术基于表面的基本理论，它被证明了在表面适合改进插值精确性。然而，在以前的研究的不可分的反复的解决方案在计算和巨大的存储器用法导致了高时间的复杂性以便把这种技术放进申请变得困难，特别为大规模数据集。在学习，一个创新模型(HASM 广告) 根据数据调整理论根据顺序的最少的广场被开发。顺序的分割在这种技术被采用，以便线性方程能被划分成在顺序要处理，时间的复杂性在计算极大地减少了的组。实验显示 HASM 广告技术在精确性超过传统的空间插值方法。另外，交叉验证结果为土壤 PH 性质的空间插值证明一样的结论，数据在江西省取样了。而且， HASM 广告技术显著地减少计算复杂性并且在计算减少记忆用法，这在学习被表明。

英文摘要：

The HASM （high accuracy surface modeling） technique is based on the fundamental theory of surfaces, which has been proved to improve the interpolation accuracy in surface fitting. However, the integral iterative solution in previous studies resulted in high temporal complexity in computation and huge memory usage so that it became difficult to put the technique into application, especially for large-scale datasets. In the study, an innovative model （HASM-AD） is developed according to the sequential least squares on the basis of data adjustment theory. Sequential division is adopted in the technique, so that linear equations can be divided into groups to be processed in sequence with the temporal complexity reduced greatly in computation. The experiment indicates that the HASM-AD technique surpasses the traditional spatial interpolation methods in accuracy. Also, the cross-validation result proves the same conclusion for the spatial interpolation of soil PH property with the data sampled in Jiangxi province. Moreover, it is demonstrated in the study that the HASM-AD technique significantly reduces the computational complexity and lessens memory usage in computation.

同期刊论文项目