Mei Qi Lim's research while affiliated with University of Cambridge and other places

... As a part of The World Avatar (TWA) [52], a more general dynamic knowledge graph designed for multi-domain representation of knowledge related to the entire world, the system can take advantage of existing tools and frameworks as well as reuse knowledge of the micro-scale structures [90] that could be found as subsystems of cities. For instance, one of the critical TWA components, the J-Park Simulator (JPS) [27], is designed to work with representations of built environments to simulate emissions dispersion from various types of air pollution sources. ...

... The structured nature of knowledge graphs allows for efficient querying and extraction of relevant information, contributing to the effective utilization of large-scale heterogeneous and dynamic data sources. Currently, knowledge graphs are used for the automatic exploration of battery materials [229] and optimization of energy storage systems [230]. ...

... The design of the World Avatar has been demonstrated as one way to implement a comprehensive Universal Digital Twin, for example a digital twin of the UK . The design confers a number of advantages which include the adoption of a distributed architecture that supports a uniform interface to query multiple data sources, the ability to use logical reasoning to verify the consistency of semantic models (Devanand et al., 2021), and a mechanism that allows computational agents to interact to answer questions (Zhou et al., 2019. The use of Linked Data helps address ambiguity, facilitates the discovery and reuse of information and enables the linking of related information. ...

... Ronzhin et al. 2019;Chadzynski et al. 2021a), over the automation of basic information gathering tasks in planning (e.g. Chadzynski et al. 2021), the ability to use novel or more performant multi-domain queries (e.g. Ronzhin et al. 2019;Grisiute et al. 2021), or extending our Ontological representations of planning knowledge (e.g. ...

... TWA could be regarded as an example of a new paradigm for the GeoWeb information systems that go beyond Web 2.0. Being based on the Semantic 3D City Database (Chadzynski et al., 2021) at its core, it ports existing GIS standards to a new graph database and takes advantage of the Open World Assumption (OWA), which is absent in the equivalent relational geospatial databases (Stadler et al., 2009). Coupling it with a system of intelligent autonomous agents based on cognitive architecture extends and scales existing geospatial data transformation tools. ...

... The current energy infrastructure deployment in the UK under different carbon tax systems has further determined the transition window created by the increase in the carbon tax rate. These results are not only important for understanding the current increasing (complementing) carbon tax rate in the UK, but also provide insight for future policies after the UK exits the EU Emission Trading Scheme (ETS), and immediately plans to continue implementing the domestic carbon tax and trading plan (Atherton et al. 2021). However, carbon taxes may actually harm the environment, based on a stylized game model with more informed retailers (people who control the sharing of demand information with manufacturers) and manufacturers. ...

... The CKG has been applied to create cross-domain multi-scale urban planning indicators that can assess the on-site solar energy harvesting potential of different land plots in Singapore . Another application is to determine the urban energy performance of different land use allocations in Singapore (Shi et al., 2021). Existing urban-scale simulation tools are also being integrated, for example, the agentbased mobility simulation framework MATSim . ...

... Stackelberg game (SG) is widely used to describe the multi-layered decision-making process, where the followers determine their optimal strategies in response to the decision made by the leader (leadingplayer) [69]. To capture the interactions among the three hierarchical layers of entities, a two-loop SG model is formulated. ...

... "The purpose of the narrative is therefore to make the connections to ordinary experience through ordinary language and peel away the presuppositions so as to engage as well as to persuade" (Guhathakurta, 2002). Within TWA, the Parallel World Framework has been already used in the past to create similar simulations altering electrical grid of Jurong Island in Singapore by adding renewable energy sources and optimizing the infrastructure for carbon tax (Eibeck et al., 2020). Therefore, narratives could also be regarded as alternative worlds or versions of reality that communicate a story. ...

... For example, UMLS [78] is a domain-specific knowledge graph in the medical domain, which contains biomedical concepts and their relationships. In addition, there are some domainspecific knowledge graphs in other domains, such as finance [79], geology [80], biology [81], chemistry [82] and genealogy [83]. ...