Explainability of Intelligent Transportation Systems using Knowledge Compilation: a Traffic Light Controller Case

07/09/2020

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by   Salomón Wollenstein-Betech, et al.

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Usage of automated controllers which make decisions on an environment are widespread and are often based on black-box models. We use Knowledge Compilation theory to bring explainability to the controller's decision given the state of the system. For this, we use simulated historical state-action data as input and build a compact and structured representation which relates states with actions. We implement this method in a Traffic Light Control scenario where the controller selects the light cycle by observing the presence (or absence) of vehicles in different regions of the incoming roads.