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Title	Cross-Domain Flood Risk Assessment For Smart Cities Using Dynamic Knowledge Graphs
ID_Doc	16618
Authors	Hofmeister M.; Brownbridge G.; Hillman M.; Mosbach S.; Akroyd J.; Lee K.F.; Kraft M.
Year	2024
Published	Sustainable Cities and Society, 101
DOI	http://dx.doi.org/10.1016/j.scs.2023.105113
Abstract	This paper investigates the usage of knowledge graphs to bridge the gap between current data silos in deriving a holistic perspective on the impact of flooding. It builds on the idea of connected digital twins based on the World Avatar dynamic knowledge graph to deploy an ecosystem of autonomous software agents to continuously ingest new real-world information and operate on it. Multiple publicly available yet isolated data sources, including geospatial building information and property sales data as well as real-time river levels, weather observations, and flood warnings, are connected to instantiate a semantically rich ecosystem of knowledge, data, and computational capabilities to provide cross-domain insights in projected flooding events and their potential impact on population and built infrastructure. The extensibility of the proposed approach is highlighted by further integrating power, water, and telecoms infrastructure as part of the very same system, in order to analyse flood-induced asset failures and their propagation across networks. The World Avatar promotes evidence-based decision making during several disaster management phases, supporting both tactical and strategic risk assessments, which supports the United Nations Sustainable Development Goal 11 to improve the assessment of vulnerability, exposure, and risk of communities imposed by flooding events. © 2023
Author Keywords	Digital twin; Flood assessment; Interoperability; Knowledge graph; Smart city

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