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Towards AI-assisted digital twins for smart railways: preliminary guideline and reference architecture

Lorenzo De Donato,Ruth Dirnfeld,Alessandra Somma,Alessandra De Benedictis,Francesco Flammini,S. Marrone,Mehdi Saman Azari,V. Vittorini

Published 2023 in Journal of Reliable Intelligent Environments

ABSTRACT

In the last years, there has been a growing interest in the emerging concept of digital twins (DTs) among software engineers and researchers. DTs not only represent a promising paradigm to improve product quality and optimize production processes, but they also may help enhance the predictability and resilience of cyber-physical systems operating in critical contexts. In this work, we investigate the adoption of DTs in the railway sector, focusing in particular on the role of artificial intelligence (AI) technologies as key enablers for building added-value services and applications related to smart decision-making. In this paper, in particular, we address predictive maintenance which represents one of the most promising services benefiting from the combination of DT and AI. To cope with the lack of mature DT development methodologies and standardized frameworks, we detail a workflow for DT design and development specifically tailored to a predictive maintenance scenario and propose a high-level architecture for AI-enabled DTs supporting such workflow.

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