TABLE IV: Precision-recall curves vs. ROC curves The perfect test. The perfect test has no overlap of results for persons with and without disease, respectively. The perfect test is thus able to discriminate between persons with and without disease with 100 % sensitivity (= recall), 100 % specificity and 100 % precision (= positive predictive ...

Trong thống kê học, sai số toàn phương trung bình, viết tắt MSE (Mean squared error) của một phép ước lượng là trung bình của bình phương các sai số, tức là sự khác biệt giữa các ước lượng và những gì được đánh giá.

Geodesic vs. Planar Geometries; ... // Calculate RMSE for population of difference pairs. var rmse = ee.Number( // Map the difference function over the collection. ...

The MAPE is scale sensitive and should not be used when working with low-volume data. Notice that because "Actual" is in the denominator of the equation, the MAPE is undefined when Actual demand is zero. Furthermore, when the Actual value is not zero, but quite small, the MAPE will often take on extreme values.

the kriged maps by the two procedures accorded well, low overall accuracy was observed for the maps obtained by the two methods. While not suitable for determination where high accuracy is required, determination of organic carbon through LOI is likely suitable for exploratory soil surveys where rough estimation of organic matter is required.