Elsevier

Ecological Modelling

Volume 44, Issues 3–4, January 1989, Pages 299-306
Ecological Modelling

Mean squared error of prediction as a criterion for evaluating and comparing system models

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Abstract

Model evaluation is an essential aspect of the process of development of system models. When the main purpose of the model is prediction, a reasonable criterion of model quality is the mean squared error of prediction. This criterion is defined here, and it is shown how it can be estimated from available data in a number of situations, including the situation where the parameters of the model are adjusted to the data. An example of the use of this criterion for choosing between alternative models is presented.

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