- mean forecast error
- 平均预报误差
Atmospheric Sciences (English-Chinese) dictionary. 2014.
mean forecast error
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Mean percentage error — In statistics, the mean percentage error (MPE) is the computed average of percentage errors by which estimated forecasts differ from actual values of the quantity being forecast. Formula for mean percentage error calculation is: where at is the… … Wikipedia
Mean absolute error — In statistics, the mean absolute error (MAE) is a quantity used to measure how close forecasts or predictions are to the eventual outcomes. The mean absolute error is given by As the name suggests, the mean absolute error is an average of the… … Wikipedia
Forecast error — In statistics, a forecast error is the difference between the actual or real and the predicted or forecast value of a time series or any other phenomenon of interest. In simple cases, a forecast is compared with an outcome at a single time point… … Wikipedia
Mean absolute percentage error — (MAPE) is measure of accuracy in a fitted time series value in statistics, specifically trending. It usually expresses accuracy as a percentage, and is defined by the formula: where At is the actual value and Ft is the forecast value. The… … Wikipedia
Mean absolute scaled error — In statistics, the mean absolute scaled error (MASE) is a measure of the accuracy of forecasts . It was proposed in 2006 by Australian statistician Rob Hyndman, who described it as a generally applicable measurement of forecast accuracy without… … Wikipedia
mean absolute deviation — MAD A measure of forecast error, for example when carrying out adaptive exponential smoothing of time series data. MAD is the average forecast error, either positive or negative, calculated as the sum of the absolute value of forecast error for… … Big dictionary of business and management
Forecast — Die Prognose (griechisch, πρóγνωσις – wörtlich „das Vorwissen“, die „Voraus Kenntnis“), deutsch Vorhersage oder Voraussage, selten auch: Prädiktion (lat. praedicare „ im Voraus“ und „sagen“) bezeichnet die Aussagen über Ereignisse, Zustände oder… … Deutsch Wikipedia
Calculating Demand Forecast Accuracy — upply Chain forecastingUnderstanding customer demand is key to any manufacturer to make and keep sufficient long lead inventory so that customer orders can be correctly met. Forecasts are never perfect but are valuable in better preparedness for… … Wikipedia
Forecasting — is the process of estimation in unknown situations. Prediction is a similar, but more general term. Both can refer to estimation of time series, cross sectional or longitudinal data. Usage can differ between areas of application: for example in… … Wikipedia
statistics — /steuh tis tiks/, n. 1. (used with a sing. v.) the science that deals with the collection, classification, analysis, and interpretation of numerical facts or data, and that, by use of mathematical theories of probability, imposes order and… … Universalium
Weather forecasting — weather forecaster redirects here. For other uses, see Weatherman (disambiguation). Forecast of surface pressures five days into the future for the north Pacific, North America, and north Atlantic ocean. Weather forecasting is the application of… … Wikipedia
