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Journal of Graphics ›› 2025, Vol. 46 ›› Issue (5): 1123-1133.DOI: 10.11996/JG.j.2095-302X.2025051123

• BIM/CIM • Previous Articles     Next Articles

Towards unsupervised BIM product retrieval: a Weisfeiler-Lehman kernel enhanced approach

HU Huiqiang1(), HE Changyan2, LIU Xiaojun3(), JIA Jinyuan1, GAO Lu4   

  1. 1 School of Software Engineering, Tongji University, Shanghai 201804, China
    2 Normal College, Jiaxing University, Jiaxing Zhejiang 314001, China
    3 College of Information Engineering, Jiaxing Nanhu University, Jiaxing Zhejiang 304001, China
    4 Yinzhu (Suzhou) Building Technology Co., LTD, Suzhou Jiangsu 215131, China
  • Received:2024-12-25 Accepted:2025-03-11 Online:2025-10-30 Published:2025-09-10
  • Contact: LIU Xiaojun
  • About author:First author contact:

    HU Huiqiang (1983-), PhD candidate. His main research interests cover computer graphics and building data analysis, etc. E-mail:276349967@qq.com

  • Supported by:
    Zhejiang Province Basic Public Welfare Research Program Project of China(LGG22F020037);National Natural Science Foundation of China General Program(6207071897);National Natural Science Foundation of China Key Program of the Regional Joint Fund(U19A2063)

Abstract:

To meet the urgent need for building elements retrieval in the construction industry, an unsupervised building information modeling (BIM) product retrieval method tailored to the characteristics of industry foundation classes (IFC) data was proposed. The method fully exploited the semantic and geometric information from the IFC standard to construct a product attributed graph (PAG) as the product feature. By leveraging the multi-attribute channels of PAG, a PAG isomorphism prediction approach, enhanced by the Weisfeiler-Lehman (WL) kernel, was proposed to achieve BIM product retrieval. The proposed method accepted two IFC documents as input: Document A, representing the target product to be retrieved, and Document B, serving as the product library. Our method ultimately returned products from Document B similar to the target product in Document A. The principal contributions were threefold: ①The proposal of a BIM product retrieval framework that circumvented the need for data preprocessing while maintaining semantic integrity. ②The development of PAG feature extraction for BIM product and enhanced PAG isomorphism prediction method with augmented WL graph kernels. ③The design of an unsupervised convergence assessment strategy in which the convergence status was timely determined by analyzing the attribute differences between the attributes from source and those predicted. Empirical findings indicated that the PAG isomorphism testing of our methodology achieved convergence within a maximum of three iterations. Under the experimental conditions, the isomorphism testing of BIM products required no longer than 1 second, with an average accuracy rate of 95% in products retrieval.

Key words: building product, Weisfeiler-Lehman kernel, retrieval, unsupervised, graph isomorphism

CLC Number: