Abstract
This paper revisits probabilistic, model–based goal
recognition to study the implications of the use of
nominal models to estimate the posterior probability distribution over a finite set of hypothetical
goals. Existing model–based approaches rely on
expert knowledge to produce symbolic descriptions
of the dynamic constraints domain objects are subject to, and these are assumed to produce correct
predictions. We abandon this assumption to consider the use of nominal models that are learnt from
observations on transitions of systems with unknown dynamics. Leveraging existing work on the
acquisition of domain models via Deep Learning
for Hybrid Planning we adapt and evaluate existing
goal recognition approaches to analyse how prediction errors, inherent to system dynamics identification and model learning techniques have an impact
over recognition error rates