Graph-Based Product2Task-Worker-Machine Mapping in Modular Construction

Jintao Xue (), Xiao Li () and Chengke Wu ()
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Jintao Xue: The University of Hong Kong
Xiao Li: The University of Hong Kong
Chengke Wu: Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology

A chapter in Proceeding of the 19th International Congress on Logistics and Supply Chain Management Systems, 2026, pp 28-43 from Springer

Abstract: Abstract A critical stage before work package generation in modular construction (MC) is product2task mapping. However, both the ability to perform complex reasoning and the richness of semantic information in mapped tasks still need improvement. This paper aims to address the aforementioned problems through a graph-based product2task-worker-machine mapping (P2TWM) framework (G-P2TWM). The framework first represents the data including tasks, products, workers, and machines as knowledge graphs (KGs). Then, a novel heterogeneous graph neural network for mapping in MC (HGN-MC) is employed to seamlessly extract KG data and adaptively map the products to the corresponding tasks, workers, and machines (e.g., rebar fixing, structural steel welder, and rebar bending machine), thereby enriching task-level information for the downstream process in MC (e.g. work package generation and production scheduling). The proposed G-P2TWM framework also supports flexibly adding additional heterogeneous information (e.g. spatial information) as graph nodes to enhance mapping performance. Experiments demonstrate that our method is capable of complex knowledge reasoning with high performance`.

Keywords: Modular Construction; Knowledge Graph; Product Mapping; Graph Neural Network (search for similar items in EconPapers)
Date: 2026
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DOI: 10.1007/978-981-95-7700-2_3

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