Approximate Bayesian Computation forForecasting in Hydrological models

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Approximate Bayesian Computation (ABC) is a statistical tool for handlingparameter inference in a range of challenging statistical problems, mostlycharacterized by an intractable likelihood function. In this paper, we focus on theapplication of ABC to hydrological models, not as a tool for parametric inference,but as a mechanism for generating probabilistic forecasts. This mechanism is referredas Approximate Bayesian Forecasting (ABF). The abcd water balance modelis applied to a case study on Aipe river basin in Columbia to demonstrate the applicabilityof ABF. The predictivity of the ABF is compared with the predictivity of theMCMC algorithm. The results show that the ABF method as similar performanceas the MCMC algorithm in terms of forecasting. Despite the latter is a very flexibletool and it usually gives better parameter estimates it needs a tractable likelihood
Lingua originaleEnglish
Numero di pagine6
Stato di pubblicazionePublished - 2018

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