Simplicial Indicator Kriging

作     者：R Tolosana-Delgado V Pawlowsky-Glahn J J Egozcue 

作者机构：Department of Sedimentology and Environmental Geology Georg-August-Universitt Gttingen D-37077 Gttingen Germany Department of Computer Science and Applied Mathematics University of Girona Girona Spain Department of Applied Mathematics III Universidad Politécnica de Catalunya Barcelona Spain 

出 版 物：《Journal of China University of Geosciences》 (中国地质大学学报（英文版）)

年 卷 期：2008年第19卷第1期

页      面：65-71页

核心收录：

学科分类：081801[工学-矿产普查与勘探] 0709[理学-地质学] 08[工学] 0708[理学-地球物理学] 0818[工学-地质资源与地质工程] 0704[理学-天文学] 

基　　金：the Dirección General de Ensen~anza Superior, Ministerió de Educación y Cultura (Spain) (BFM2003-05640 and MTM2006-03040) the Universitat de Girona (Spain) (BR01/03) the Deutsche Akademische Austauschdienst (Germany) (A/04/33586) 

主　　题：Aitchison geometry compositional data disjunctive kriging log-ratio approach simplex. 

摘      要：Indicator kriging （IK） is a spatial interpolation technique devised for estimating a conditional cumulative distribution function at an unsampled location. The result is a discrete approximation, and its corresponding estimated probability density function can be viewed as a composition in the simplex. This fact suggested a compositional approach to IK which, by construction, avoids all its standard drawbacks （negative predictions, not-ordered or larger than one）. Here, a simple algorithm to develop the procedure is presented.