Example of estimating confidence intervals.
In this example, we estimated the confidence intervals of 
instances. The left-hand plot shows the confidence interval widths and the corresponding absolute errors. The corresponding CEC equals 
. Although the CEC is not very large, it is possible to see an increased number of small confidence intervals for predictions with a low error. In the right-hand plot, the estimated confidence interval borders are displayed. In addition, every prediction defined by its prediction error and its normalized confidence score is depicted by a red circle. On average, the absolute error is smaller for predictions with a high 
and a small confidence interval.
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