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- W2592845268 abstract "Validation is a critical component of any modelling process. In artificial neural network (ANN) modelling, validation generally consists of the assessment of model predictive performance on an independent validation set (predictive validity). However, this ignores other aspects of model validation considered to be good practice in other areas of environmental modelling, such as residual analysis (replicative validity) and checking the plausibility of the model in relation to a priori system understanding (structural validity). In order to address this shortcoming, a validation framework for ANNs is introduced in this paper that covers all of the above aspects of validation. In addition, the validann R-package is introduced that enables these validation methods to be implemented in a user-friendly and consistent fashion. The benefits of the framework and R-package are demonstrated for two environmental modelling case studies, highlighting the importance of considering replicative and structural validity in addition to predictive validity. A comprehensive validation framework for ANNs is proposed.The validann R-package for implementing the validation framework is introduced.Application of the framework and R-package is demonstrated on two real case studies.Results reveal that predictively valid ANN models may not be credible.Adoption of the framework leads to improvements in overall ANN validity." @default.
- W2592845268 created "2017-03-16" @default.
- W2592845268 creator A5010973652 @default.
- W2592845268 creator A5015893842 @default.
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- W2592845268 creator A5050628996 @default.
- W2592845268 creator A5082030549 @default.
- W2592845268 creator A5086520105 @default.
- W2592845268 date "2017-06-01" @default.
- W2592845268 modified "2023-10-14" @default.
- W2592845268 title "Improved validation framework and R-package for artificial neural network models" @default.
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