【作者】 阮永芬； 黄兴周； 赵华；

【Author】 RUAN Yong-fen HUANG Xing-zhou Faculty of Architectural Engineering,Kunming Univ of Science and Technology,Kunming,Yunnan 650024,China; ZHAO Hua Scientific Research Branch Institute of Kunming Hydroelectric Investigation,Design and Research Institute,CHECC,Kunming,Yunnan 650033,China)

【机构】 昆明理工大学建筑工程学院土木工程系； 中国水利顾问集团昆明勘测设计研究院科学研究分院；

【摘要】 克立格估值权系数一直都没有很好地解决负权值问题,这不但影响着地质统计学的发展,还给实际的估值带来非常大的误差,甚至是错误.针对这一问题,本文采用熵权理论,从克立格方程组出发对负权值问题进行解决.利用小湾坝前堆积体边坡监测资料对其进行验证,结果表明,采用熵权理论进行解决的方法是可行的.在进行负权值改进时,不仅考虑权值系数修正也考虑了样品点距离的修正.更多还原

【Abstract】 The estimation of Kriging is a main application of geostatistics in spatial variability,but for many years,there is a problem that the nonnegative constrains are not taken into consideration in the weights of esti- mation.This is not only influenced further development of Kriging,but also impacted on the estimation of actual results.To solve this problem,the entropy weight theory models calculating the weights of estimation in which the nonnegative constrains are taken into consideration are proposed to overcome the malpractices existed in the related Kriging equations.Finally,the empirical analysis and verification of the algorithm is provided and the re- sults show that it is feasible by the weight theory algorithm.Both of the correction of coefficient of weight and the correction of sample point of distance are taken into consideration in improving the negative weight.更多还原