摘要
讨论了实验观测中的异常值对混凝土无损检测测强曲线拟合精度的影响,给出了异常值的几种检测方法,并指出剔除异常值或采用稳健回归的方法可以大大提高测强曲线的拟合精度.
Influence of outlier on precision of strength detection curve fitting in concrete nondestructive testing was discussed, and the method to check abnomal data was put forward. Further more, the paper also pointed out which can obtain higher precision to pick out abnomal data or adopt robust regression method.
出处
《建筑技术开发》
2005年第8期83-84,89,共3页
Building Technology Development
关键词
无损检测
异常值
测强曲线
曲线拟合
稳健估计
Nondestructive testing
Outlier
Strength detection curve
Curve fitting
Robust estimation
