| 考虑权值非负约束的泛克立格算法 |
| |
| 引用本文： | 胡小荣.考虑权值非负约束的泛克立格算法[J].物探化探计算技术,1998,20(3):249-255. |
| |
| 作者姓名： | 胡小荣 |
| |
| 作者单位： | 本溪冶金高等专科学校 |
| |
| 摘 要： | 泛克立格法是地质统计学的一种重要估值方法，当区域化变量在空间变异几何域内非平稳时常用泛克立格法来估值。然而，用泛克立格方程组计算估计权值时由于未对权的符号作任何限制，从而使得计算出的权值经常出现负权现象，而负权的存在有许多弊端，所以在许多应用中有必要对权值作非负要求。本文基于线性规划方法提出了一种考虑权值非负约束的泛克立格算法，该算法既考虑到了权值的非负约束条件，又利用了线性规划方法求解简便快捷的优点。
|
| 关 键 词： | 泛克立格法 权值非负 线性规划 |
AN ALGORITHM OF UNIVERSAL KRIGING WITH NONNEGATIVE WEIGHTS |
| |
| Hu Xiaorong.AN ALGORITHM OF UNIVERSAL KRIGING WITH NONNEGATIVE WEIGHTS[J].Computing Techniques For Geophysical and Geochemical Exploration,1998,20(3):249-255. |
| |
| Authors: | Hu Xiaorong |
| |
| Institution: | Benxi College of Metallurgy |
| |
| Abstract: | The universal kriging (UK) is a very important estimation method in geostatistics. It is often used on the condition that the regionalized variable is not stationary. The weights calculated with the UK system always have some negative values which make the estimation impractical, and so in many cases, the weights with nonnegative values are required. In this paper, based on the linear programming, an algorithm of UK is developed to consider the constrains of nonnegative weights. This algorithm not only makes use of the properties of easy and fast calculation of linear programming, but also takes the weights with nonnegative values into consideration. |
| |
| Keywords: | universal kriging weight with nonnegative value linear programming |
| 本文献已被 CNKI 维普 等数据库收录！ |
