5.2 Measures of Model Specificity

5.2.3 Precision

The precision of a model is the range of the dependent variables of the model corresponding to any point in the domain of the independent variables. An example will indicate the importance of the precision of the model. High pressure weather systems are thermodynamically more stable than systems dominated by low pressure. Consequently, the precision of forecast movements and effects of high pressure systems is greater than the precision of forecasts of weather systems dominated by low pressure. Interval rather than point forecasts may often be appropriate. However, adaptations of the model to reduce the range of the interval -- that is, to increase the precision of the model

Modelling Learning as Modelling - 23 FEB 98

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