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Learning and Verification

Complex engineering systems, such as autonomous vehicles, are often safety-critical and demand high guarantees of correctness. Given a complete model of the system of interest, these guarantees can be obtained through formal methods, such as model checking, though the outcomes of these formal proofs are bound to the model of the system of interest. Obtaining a complete model is not possible for systems with uncertain stochastic dynamics, but we can capture these dynamics with parameterised Markov chains. Model checking now produces a result dependent on knowledge of the value of parameters within the model.
 
In this work we integrate the use of model checking techniques (for parameter synthesis over the model) with data-based approaches (for parametric Bayesian inference) in order to compute a confidence, based on observed data collected from the system, that the system satisfies a given specification.

Themes:  Learning and Verification

People:  Viraj Wijesuriya, Gareth Molyneux, Alessandro Abate

Publications:

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