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math.ST2026
Kling-Gupta linear regression
Hristos Tyralis, Georgia Papacharalampous
Kling-Gupta efficiency () is a model performance evaluation metric widely used in hydrology, but its properties as a statistical estimator have remained unexplored. W…
stat.ML2026
Learning with the Nash-Sutcliffe loss
Hristos Tyralis, Georgia Papacharalampous
The Nash-Sutcliffe efficiency () is a widely used, positively oriented relative measure for evaluating forecasts across multiple time series. However, it lacks a decisi…