The Stream Reasoning System I-DLV-sr: Enhancements and Applications in Smart Cities

I-DLV-sr is a recently proposed logic-based system for reasoning over data streams, which relies on a framework enabling a tight, fine-tuned interaction between Apache Flink and the ASP system $$\mathcal {I}^2$$ -DLV. Flink enables distributed stream processing, whereas $$\mathcal {I}^2$$ -DLV acts as full-fledged reasoner capable of transparently performing incremental evaluations. In this paper, we present a new and optimized version of I-DLV-sr that features an improved management of parallel computations and communications between Flink and $$\mathcal {I}^2$$ -DLV, along with new linguistic extensions aiming at allowing its effective application in smart city scenarios.