Study of Fitting Variogram Model
Fitting variogram model is a key problem in Kriging estimation. The fitting method of variogram has an effect on the accuracy of Kriging estimation. Most traditional fitting methods of variogram have high time complexity, and call for strict data distribution with un-flexible algorithm, which needs repeating parameter adjustment and computing to find right model. Aiming at the problems above, this paper improves integral area method on the basis of Newton iterative and cubic splines interpolation. Integral area method considers that the area that variogram contained is equal to the theoretical model contained. Newton iterative and cubic splines interpolation can reduce dispersive error when taking the whole structure into consider. The experiment results of improved integral area method are differenl from the traditional methods. The analysis result shows that improved integral area method can decrease complexity effectively, implement neatly and is robust to data of different distribution.
Xianchuan Yu Jiamian Ren Chen Yu Xiaosheng Tan
College of Information Sci. & Tech., Beijing Normal University, Beijing 100875, China Clearing Center of the Peoples Bank of China, Beijing 100037, China
国际会议
The 12th Conference of the International Association for Mathematical Geology(第12届国际数学地质大会)
北京
英文
396-400
2007-08-26（万方平台首次上网日期，不代表论文的发表时间）