主成分分析法确定饱和指数模型阈值  

Threshold Determination of Improved Saturation Index Model Based on Principal Component Analysis

作　　者：黄华东[1] 郭张军[2] 韩耀铭 杨文曦 

机构地区：[1]国网电力科学研究院/南京南瑞集团公司,江苏省南京市210003 [2]陕西电力科学研究院,陕西省西安市710054 [3]安康水力发电厂,陕西省安康市725000

出　　处：《水电自动化与大坝监测》2011年第3期73-78,共6页HYDROPOWER AUTOMATION AND DAM MONITORING

摘　　要：依据主成分分析法和化学热力学的基本理论,编写了基于FORTRAN语言的程序,优化了模型阈值的确定方法,根据计算目的不同,分别选取不同的目标离子作为控制模型循环的阈值。结合某工程实例,与传统算法进行了比较,证明该模型的算法在坝址区的计算具有更好的稳定性和计算精度。According to data mining and the basic theory of chemical thermodynamics,a program based on FORTRAN code and a determined method for optimal model threshold is designed.In accordance with different calculation aim,selecting different target ion respectively is used as threshold of control model cycling.In combination with a concrete project example,compared with traditional algorithm,it is proved that this model algorithm has better stability and calculation precision for dam address area calculation.

关 键 词：坝基稳定性 数据挖掘 主成分分析法 模型阈值 饱和指数 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]