A TEST FOR CROSSING RECEIVER OPERATING CHARACTERISTIC (ROC) CURVES
A TEST FOR CROSSING RECEIVER OPERATING CHARACTERISTIC (ROC) CURVES
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DOI：
10.1080/03610928808829727
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发表时间：
1988-01-01
影响因子：
0.8
通讯作者：
RAISSIS, M
中科院分区：
文献类型：
--
作者：
MOISE, A;CLEMENT, B;RAISSIS, M
受试者工作特性(ROC)曲线给出了当改变对诊断标准的决策阈值时预测模型的灵敏度和特异度的图形表示。比较两个模型-1和2-的总体精度的经典测试是基于ROC曲线区域之间的差异-与其标准误差相关。这个测试是针对ROC曲线1覆盖ROC曲线2的情况而设计的。通常两条曲线交叉：本文提出了一种新的基于曲线之间的积分差的测试方法。在一项模拟实验中，新测试在检测总体优势方面不如旧测试强大，但在检测交叉选择方面要强大得多。
The receiver operating characteristic (ROC) curve gives a graphical representation of sensitivity and specificity of a prediction model when varying the decision treshold on a diagnostic criterion. A classical test for comparing the overall accuracies for two models -1 and 2- is based on the difference between ROC curves areas - related to its standard error. This test is designed for the situation where ROC curve 1 caps ROC curve 2. Often both curves cross :in this paper, a new test, based on the integrated difference between the curves, is proposed to deal with this situation. In a simulation experiment, the new test was less powerful than the old test for detecting an overall superiority, but much more powerfull against the crossing alternative.