Gaussian process priors are used to model a twin-tank system as a tutorial example in the use of Gaussian process priors in the context of dynamic systems modelling. The model learned provides a good description of the real system, and the advantages of input-dependent uncertainty and propagation of uncertainty are shown. Some observations of practical issues when using Gaussian process models ...

Uncertainty is ubiquitous in software engineering; however, it has been typically handled in adhoc and informal ways within software models. Automated change propagation is recognized as a key tool for managing the accidental complexity that comes with multiple interrelated models. In this paper, we address change propagation in the context of model uncertainty and consider the case where chang...

Uncertainty propagation formulae are presented for age dating in support of nuclear forensics. The age of radioactive material in this context refers to the time elapsed since a particular radionuclide was chemically separated from its decay product(s). The decay of the parent radionuclide and ingrowth of the daughter nuclide are governed by statistical decay laws. Mathematical equations allow ...