基于改进PCA与有序多分类Logistic的充填管道磨损风险评估

王石,汤艺,冯萧

Risk Assessment of Filling Pipeline Wearing Based on Improved PCA and Ordered Multi-class Logistic

Shi WANG,Yi TANG,Xiao FENG

表5 管道磨损风险Logistic回归模型

Table 5 Logistic regression model of pipeline wear risk

变量 回归系数 标准误差 显著性水平 I1 0.3507 0.3108 0.1128 I3 0.0372 0.1826 0.3972 I4 -0.1055 0.2686 0.0293 I5 -0.0469 0.1782 0.2833 I6 0.2416 0.1306 0.0633 I7 0.2817 0.1026 0.0375 I8 0.0983 0.1772 0.3985 I9 0.2478 0.1812 0.1755 I10 -0.2928 0.1428 0.0427 I12 0.2793 0.1642 0.0694 β 1.7855 0.7634 0.0259