基于MATLAB的KAPPA系数计算。The confusion matrix was used to describe the classification accuracy and to characterize the errors. Landis and Koch (1977) classified Kappa values into different categories: 0-0.20, 0.21-0.40, 0.41-0.60, 0.61-0.80 and 0.81-1, wh
The Vertices of Lower Degree in Contraction-Critical $\kappa$ Connected，袁旭东，李婷婷，Let $G$ be a contraction-critical $\kappa$ connected
graph. It is known (see {\it Graphs and Combinatorics}, 7 (1991)
15-21) that the minimum degree of $G$ is at most $
