Hi! I am Frank, Assistant Professor working on 'AI + city' at Dept. of Real Estate and Construction, HKU (also part-time at DUPAD). My theoretical work includes:
As trained as a multidisciplinary engineer, I am trying to solve complicated problems in building and construction with computational intelligence:
PI:
HKU Small Equipment Grant (60%) + Stanley Ho Alumni Challenge (SHAC) (207051055, 40%). (HK$760,000). Mobile Color LiDAR Scanners.
Keywords: color LiDAR; SLAM; indoor model; 3D point cloud
Co-PI:
GovHK ITC ITF Tier-1 (ITP/029/20LP, 10% of HK$10.36 million).
“BIM Square”: Blockchain and i-Core-enabled Multi-stakeholder Building Information Modelling Platform for Construction Logistics and Supply Chain Management in Hong Kong.
(PC: Prof Wilson Lu)
Keywords: Construction logistics and supply chain; quality assurance; blockchain; open BIM; i-Core oracles for blockchain
Co-PI:
Key R&D Program of the Guangdong Province (2019B010151001, 5% of CNY 10 million).
The applications of Virtual Reality technologies for cultural heritage conservation in the Guangdong-Hong Kong-Macao Greater Bay Area [面向粵港澳歷史文化保護傳承的虛擬現實技術研究與應用]. (PC: Dr Youyi Xiong)
Keywords: Digital conservation; VR; BIM; GIS; automatic as-is modeling
Co-PI:
HKU (HK$915,870). Development of an Urban Big Data Platform for Smarter Hong Kong: Integrate to Inspire. (PC: Prof Chris Webster)
Keywords: urban big data; urban computing; deep learning; street view; 3D point cloud
Co-I:
NSFC General Program (71671156, CNY 493,000). A Social Network Analysis and NK-model based study of stakeholder relationship in mega construction projects [基於社會網絡分析及NK模型的重大建設項目幹系人關系研究]. (PI: Prof Geoffrey Shen)
Co-I:
NSSFC Major Program (17ZDA062, CNY 800,000). Evaluation on the environment-resources carrying capacity in megacities and policy instruments with the big data background [大數據背景下我國大型城市資源環境承載力評價與政策研究]. (PI: Prof Liyin Shen)
Co-I:
NSFC General Program (72071022, CNY 480,000). Unfolding the multiple complexities in the formation, quantification, and interactions of resource metabolism in construction projects [建設工程項目資源代謝多重複雜性的形成機理、測度模式與作用機制研究]. (PI: Prof Chris J Hong)
Co-I:
HK RGC GRF (17203920, HK$684,520). Enhancing Underground Development Users' Health through an Automated Risk Assessment System for Facilities Management. (PI: Dr Isabelle Chan)
Co-I:
HK ECF (111/2019, HK$485,000). Big data-based "AI inspector" for gauging inert contents at the off-site construction waste sorting facilities in Hong Kong. (PI: Prof Wilson Lu)
Co-I:
HK PICO SPPR (S2018.A8.010.18S, HK$2.9 million). Boosting Construction Waste Material Sharing in the Guangdong-Hong Kong-Macao Bay Area. (PI: Prof Wilson Lu)
PI:
HKU-Tsinghua SPF. A derivative-free optimization (DFO) approach for 3D scene understanding using civil engineering context. 2019-2020, HK$70,000 HKU side + CNY 70,000 Tsinghua side. (Co-PI: Dr Hongling Guo)
Keywords: BIM; DFO; deep learning; 3D point cloud
PI: HKU Seed Fund for Basic Research (201811159177). Towards spatiotemporal building city information model (BIM/CIM): Semantic voxel modeling based on Gestalt principles. 2019-2020. HK$93,200.
Keywords: 3D point cloud; semantics; voxel modeling; Gestalt principles
PI: HKU Seed Fund for Basic Research (201711159016). 'Find them all': A multi-modal optimization approach for automated detection of repetition in urban scenes. 2018-2019. HK$111,050.
Keywords: 3D point cloud; repetition; multimodal optimization
PI: HKU Seed Fund for Basic Research (201702159013). Automated architectural symmetry recognition from 3D point clouds. 2017-2018. HK$300,000.
Keywords: 3D point cloud; symmetry; optimization
Co-I:
HK PICO PPR (2018.A8.078.18D). "Finding the Needles in a Haystack": Identification of the Illegal Dumping of Construction Waste Using Big Data. 2019-2020. HK$447,350. (PI: Prof Wilson Lu)
Co-I: NSFC General Program (60472123). Airport ground service scheduling optimization based on multi-agent coordination and data fusion [基於多Agent協作及信息融合的飛機地面作業運行控制優化算法研究]. 2005-2006. CNY 80,000. PI: Prof. W. Fan.
Keywords: multi-agent-driven algorithm; scheduling; airport
Early Career Scheme Award 2019/20: Research Grants Council of Hong Kong SAR, China.
Featured Article (of Volume 167): ISPRS Journal of Photogrammetry and Remote Sensing, Elsevier. 🏆
Research Output Prize 2018/19: The University of Hong Kong, Hong Kong SAR, China.
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Dual Outstanding Paper Awards and triple Merit Paper Awards of CRIOCM'2020: The 25th International Symposium on Advancement of Construction Management and Real Estate, Wuhan, China.
Best Paper Award of ICSBS'2019: International Conference on Sustainable Buildings and Structures, Suzhou, China. 🏆
The Special Award for Joint Computing in Construction: The LC3 Innovation Competition 2017, Heraklion, Greece.
Shortlist in the Construction Industry Council (CIC) Construction Innovation Award 2017, Hong Kong SAR, China.
Best Paper Award of CRIOCM'2016: The 21st International Conference on Advancement of Construction Management and Real Estate (CRIOCM'2016), Hong Kong SAR, China.
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Dual winners of GECCO'2016 Combinatorial Black Box Optimization (CBBOC): The 2016 Genetic and Evolutionary Computation Conference, Denver, USA.
Semantic enrichment of Building and City Information Models: a ten-year review. Advanced Engineering Informatics.
Two-layer adaptive blockchain-based supervision model for off-site modular housing production. Computers in Industry.
Revisiting the effects of prefabrication on construction waste minimization: a quantitative study using bigger data. Resources, Conservation & Recycling.
“Looking beneath the surface”: A visual-physical feature hybrid approach for unattended gauging of construction waste composition. Journal of Environmental Management.
Investigating the bulk density of construction waste: A big data-driven approach. Resources, Conservation & Recycling.
A blockchain- and IoT-based smart product-service system for the sustainability of prefabricated housing construction. Journal of Cleaner Production.
The renaissance of Augmented Reality in construction: history, present status and future directions. Smart and Sustainable Built Environment.
A 3D Quality Inspection Equipment for Prefabricated Construction Products.
A Quality Assurance Management Information System for Prefabricated Construction Products.
Quick story:
A semantic differential transaction approach to minimizing information redundancy for BIM and blockchain integration. Automation in Construction.
Quick story:
From LiDAR point cloud towards digital twin city: Clustering city objects based on Gestalt principles. ISPRS Journal of Photogrammetry and Remote Sensing. 🏆Featured Article (of Vol. 167).
Pervasive sensing technologies for facility management: A critical review. Facilities.
Embodied energy in service industry in global cities: A study of six Asian cities. Land Use Policy.
Is the private sector more efficient? Big data analytics of construction waste management sectoral efficiency. Resources, Conservation and Recycling.
Automated mapping from IFC data model to relational database model (IFC数据模型至关系型数据库模型的自动映射). Journal of Tsinghua University (Science and Technology).
An anatomy of waste generation flows in construction projects using passive bigger data. Waste Management.
Construction-oriented Design for Manufacture and Assembly (DfMA) guidelines. Journal of Construction Engineering and Management.
Design for Manufacture and Assembly (DfMA) in construction: The old and the new. Architectural Engineering and Design Management.
Mapping the knowledge domain of stakeholder perspective studies in construction projects: A bibliometric approach. International Journal of Project Management.
Estimating construction waste generation in residential buildings: A fuzzy set theory approach in the Brazilian Amazon. Journal of Cleaner Production.
Digital twinning construction objects: Lessons learned from pose estimation methods. The Joint Conference ICCCBE and CIB W78 2020.
Indoor-outdoor navigation without beacons: Compensating smartphone AR positioning errors with 3D pedestrian network. ASCE Construction Research Congress 2020.
Classification of photo-realistic 3D window views in a high-density city: The case of Hong Kong.
Proceedings of the 25th International Symposium on Advancement of Construction Management and Real Estate (CRIOCM2020), Springer, in press. 🏆 Outstanding Paper Award.
Modular construction: design considerations and opportunities.
Proceedings of the 25th International Symposium on Advancement of Construction Management and Real Estate (CRIOCM2020), Springer, in press. 🏆 Outstanding Paper Award.
Prospect of architectonic grammar reconstruction from dense 3D point clouds: Historical building information modeling (HBIM) of Guangdong cultural heritages.
Proceedings of the 25th International Symposium on Advancement of Construction Management and Real Estate (CRIOCM2020), Springer, in press. 🏆 Merit Paper Award.
Construction inspection information management with consortium blockchain.
Proceedings of the 25th International Symposium on Advancement of Construction Management and Real Estate (CRIOCM2020), Springer, in press. 🏆 Merit Paper Award.
Understanding construction waste recycling in Hong Kong: SWOT analysis of the government’s prevailing initiatives.
Proceedings of the 25th International Symposium on Advancement of Construction Management and Real Estate (CRIOCM2020), Springer, in press. 🏆 Merit Paper Award.
A review of BIM data exchange method in BIM collaboration.
Proceedings of the 25th International Symposium on Advancement of Construction Management and Real Estate (CRIOCM2020), Springer, in press.
A derivative-free optimization-based approach for detecting architectural symmetries from 3D point clouds. ISPRS Journal of Photogrammetry and Remote Sensing
From semantic segmentation to semantic registration: Derivative-free optimization-based approach for automatic generation of semantically rich as-built Building Information Models from 3D point clouds. Journal of Computing in Civil Engineering
BIM reconstruction from 3D point clouds: A semantic registration approach based on multimodal optimization and architectural design knowledge. Advanced Engineering Informatics
Barriers to Building Information Modeling (BIM) implementation in China's prefabricated construction: An interpretive structural modeling (ISM) approach. Journal of Cleaner Production
Towards the "third wave": An SCO-enabled occupational health and safety management system for construction. Safety Science
Developing a conceptual framework of smart work packaging for constraints management in prefabrication housing production. Advanced Engineering Informatics
‘Cognitive facility management’: Definition, system architecture, and example scenario. Automation in Construction
Understanding unstructured 3D point clouds for creating digital twin city: An unsupervised hierarchical clustering approach. CIB World Building Congress 2019
Computational streetscapes: Big data, deep learning, and vector model. 2019 Landscape Architecture international forum in HKU: Urban landscape for people.
Semantic enrichment of city information models with LiDAR-based rooftop albedo. In Proceedings of the 2nd International Conference on Sustainable Buildings and Structures (ICSBS 2019). Best Paper Award.
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Personalized walkability assessment for pedestrian paths: An as-built BIM approach using ubiquitous augmented reality (AR) smartphone and deep transfer learning. In The 23rd International Symposium on the Advancement of Construction Management and Real Estate. in press.
Semantic enrichment for rooftop modeling using aerial LiDAR reflectance. In Proceedings of the 2019 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC 2019).
Architectural Design for Additive Manufacturing Construction: Lesson Learned from Design for Additive Manufacturing. In Proceedings of the 2019 CRIOCM International Symposium on Advancement of Construction Management and Real Estate (CRIOCM2019).
Automatic Generation of Semantically Rich As‐Built Building Information Models Using 2D Images: A Derivative‐Free Optimization Approach. Computer-Aided Civil and Infrastructure Engineering.
Linking radio-frequency identification to Building Information Modeling: Status quo, development trajectory and guidelines for practitioners. Automation in Construction.
Automatic building information model reconstruction in high-density urban areas: Augmenting multi-source data with architectural knowledge. Automation in Construction.
An Internet of Things-enabled BIM platform for on-site assembly services in prefabricated construction. Automation in Construction.
Real options model of toll-adjustment mechanism in concession contracts of toll road projects. Journal of Management in Engineering.
Searching for an optimal level of prefabrication in construction: An analytical framework. Journal of Cleaner Production.
Cross-boundary collaboration in waste management research: A network analysis. Environmental Impact Assessment Review.
A cost-benefit analysis of green buildings with respect to construction waste minimization using big data in Hong Kong. Journal of Green Building.
A physical internet-enabled building information modelling system for prefabricated construction. International Journal of Computer Integrated Manufacturing.
The Heterogeneity of BIM Objects in Different Construction Contexts. In Construction Research Congress 2018.
Architectural symmetry detection from 3D urban point clouds: A derivative-free optimization (DFO) approach. In Advances in Informatics and Computing in Civil and Construction Engineering.
3D point cloud data enabled facility management: A critical review. In Proceedings of the 23rd International Symposium on the Advancement of Construction Management and Real Estate, Springer.
Design of an efficient hyper-heuristic algorithm CMA-VNS for combinatorial black-box optimization problems. In Proceedings of the Genetic and Evolutionary Computation Conference Companion.
Integrating RFID and BIM technologies for mitigating risks and improving schedule performance of prefabricated house construction. Journal of cleaner production.
Developing an Open Access BIM Objects Library: A Hong Kong Study. In Lean and Computing in Construction Congress-Volume 1: Proceedings of the Joint Conference on Computing in Construction.
Schedule risk modeling in prefabrication housing production. Journal of cleaner production.
An Overview of the driving forces behind energy demand in China's construction industry: Evidence from 1990 to 2012. Renewable and Sustainable Energy Reviews.
Prefabricated construction enabled by the Internet-of-Things. Automation in Construction.
The Fusion of GIS and Building Information Modeling for Big Data Analytics in Managing Development Sites. Comprehensive Geographic Information Systems.
'Local content' of corporate social responsibility in international construction business. ARCOM 2017.
Development of 3D building models using multi-source data: a study of high-density urban area in Hong Kong. In Lean and Computing in Construction Congress-Volume 1: Proceedings of the Joint Conference on Computing in Construction.
A Smart Construction Object (SCO)-Enabled Proactive Data Management System for Construction Equipment Management. In Computing in Civil Engineering 2017.
The Experiences for Post-disaster Reconstruction in Rural China: The Implications from Data Mining. In Proceedings of the 20th International Symposium on Advancement of Construction Management and Real Estate.
An optimization-based semantic building model generation method with a pilot case of a demolished construction. In Proceedings of the 21st International Symposium on Advancement of Construction Management and Real Estate. Best Paper Award.
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CMA-VNS2: An efficient hyper-heuristic algorithm for combinatorial black-box optimization. Technical report, The Hong Kong Polytechnic University.
SWOT analysis and Internet of Things-enabled platform for prefabrication housing production in Hong Kong. Habitat International.
A multi-regional structural path analysis of the energy supply chain in China's construction industry. Energy Policy.
Schedule risks in prefabrication housing production in Hong Kong: a social network analysis. Journal of cleaner production.
Energy use embodied in China's construction industry: A multi-regional input–output analysis. Renewable and Sustainable Energy Reviews.
Bridging the Cyber and Physical Systems for Better Construction: A Case Study of Construction Machinery Monitoring and Utilization. In Proceedings of the 21st International Symposium on Advancement of Construction Management and Real Estate.
Smart gateway for bridging BIM and building. In Proceedings of the 21st International Symposium on Advancement of Construction Management and Real Estate.
Project-based as-needed information retrieval from unstructured AEC documents. Journal of management in engineering.
Cma–vns: A short description. Technical report. The Hong Kong Polytechnic University.
Embodied energy of service trading in Hong Kong. Smart and sustainable built environment.
IoT-enabled on-site assembly service in prefabricated public housing construction.
Second International Conference on Sustainable Urbanization (ICSU 2015).
Towards Physical Internet-enabled prefabricated housing construction in Hong Kong. IFAC-PapersOnLine.
Building information technologies and challenges in precast housing construction in Hong Kong. In The 7th International Conference of Sustainable Development in Building and Environment
PhD Thesis: A suboptimum- and proportion-based heuristic generation method for combinatorial optimization problems. The Hong Kong Polytechnic University. Advisors: Dr. C.Y. Chan, Dr. Andrew W.H. Ip, Prof. Benny C.F. Cheung. theses.lib.polyu.edu.hk/handle/200/7203
A hyper-heuristic inspired by pearl hunting. In Learning and intelligent optimization (Proceedings of LION 6).
A learning-based variable assignment weighting scheme for heuristic and exact searching in Euclidean traveling salesman problems. NETNOMICS: Economic research and electronic networking.
Using division to classify Low-level Heuristics for the Quadratic Assignment Problem. (Preprint)
A Learning-based Variables Assignment Weighting Scheme for Heuristic and Exact Searching.
1st International Conference on Computational Logistics (ICCL 2010).
Towards a learning-based heuristic searching reform scheme.
24th European Conference on Operational Research (EURO XXIV).
MSc Thesis: Coordinating Multi-agent with Organization in Distributed Scheduling System.
Civil Aviation University of China. Advisor: Prof. W. Fan.
Multi-agent optimization design for multi-resource job shop scheduling problems. In International Conference on Intelligent Computing (ICIC2007).
Multi-agent optimization design for multi-resource job shop scheduling problems. In International Conference on Intelligent Computing (ICIC2007).
Optimize cooperative agents with organization in distributed scheduling system. In International Conference on Intelligent Computing (ICIC2006).
Blockchain for Construction in the Post-COVID-19 Era. The 6th China BIM Conference - Youth Forum. 11 November 2020, Taiyuan, China.
Blockchain for Smart Construction. The joint 6th Summer School of Frontiers in Construction Management and Cloud Summer Camp of College Students in Civil Engineering, Huazhong University of Science and Technology. 23 July 2020, Wuhan, China.
Digital Twinning Construction Objects: Filtering, Supervised, and Reinforcement Learning Methods. REC Departmetal Seminars, 6 December 2019, HKU.
Evolutionary computation with applications in 3D urban reconstruction. Civil Aviation University of China. 24 September 2019, Tianjin, China.
From geometric landscape to fitness landscape: As-built BIM reconstruction through optimization. Huazhong University of Science and Technology. 27 May 2019, Wuhan, China.
Derivative-free optimization: Theory and applications in construction management. Tongji University. 19 October 2018, Shanghai, China.
Demystifying BIM & Innovation. Zhejiang University of Finance & Economics. 18 October 2018, Hangzhou, Zhejiang, China.
Urban Semantics in BIM & GIS: From source to sea. Department of Civil Engineering, Xi'an Jiaotong-Liverpool University. 15 October 2018, Suzhou, Zhejiang, China.
An efficient approach for symmetry detection in point clouds of constructions. Visual Computing Research Center, Shenzhen University. 22 June 2018, Beijing, China.
Semantic enrichment for BIM and GIS: A computational perspective. Frontiers in Construction Management, Shenzhen University. 22 May 2018, Shenzhen, China.
Enriching urban semantics to fuse BIM and CIM for smart city: examples, prospects, and challenges. Technology Collaboration: The first BIM and GIS Conference, Cyberport. 4 May 2018, Hong Kong SAR, China.
Linking RFID to BIM: A demystification of research methods. Research Methodology, Renmin University of China. 21~22 March 2018, Beijing, China.
A Derivative-free Optimization Approach for Automated As-built 3D Modelling. CIB Student Chapter Workshop Series 2017. Aug 18, 2017, HK PolyU.
An optimization approach for automated as-built 3D modeling. REC Departmetal Seminars, Apr 6, 2017, HKU.
Derivative-free optimization: Theory and applications in construction management. Tongji University. 19 October 2018, Shanghai, China.
Demystifying BIM & Innovation. Zhejiang University of Finance & Economics. 18 October 2018, Hangzhou, Zhejiang, China.
Urban Semantics in BIM & GIS: From source to sea. Department of Civil Engineering, Xi'an Jiaotong-Liverpool University. 15 October 2018, Suzhou, Zhejiang, China.
An efficient approach for symmetry detection in point clouds of constructions. Visual Computing Research Center, Shenzhen University. 22 June 2018, Beijing, China.
Semantic enrichment for BIM and GIS: A computational perspective. Frontiers in Construction Management, Shenzhen University. 22 May 2018, Shenzhen, China.
Enriching urban semantics to fuse BIM and CIM for smart city: examples, prospects, and challenges. Technology Collaboration: The first BIM and GIS Conference, Cyberport. 4 May 2018, Hong Kong SAR, China.
Linking RFID to BIM: A demystification of research methods. Research Methodology, Renmin University of China. 21~22 March 2018, Beijing, China.
Automated facilitation techniques in Value Management workshops based on domain-specific semantic metrics. Apr 24, 2015, Nanjing University, China.
Towards an automated semantic analysis for ideas in construction workshops. Dec, 2013, Chongqing University, China.
Research Assistant / Post-doctoral Fellow in Open BIM (local), Open BIM (web app): 2 open posts, 01/2021-12/2022. (Contact: Dr Shell Li xl1991@hku.hk)
Research Assistant / Post-doctoral Fellow in software (Blockchain), software (web service), software (iOS/Android/WeChat App/AppLet): 3 open posts, 01/2021-12/2022. (Contact: Dr Shell Li xl1991@hku.hk)
Research Assistant / Post-doctoral Fellow in prefabrication, modular construction: 2 open posts, 01/2021-12/2022. (Contact: Dr Shell Li xl1991@hku.hk)
Research Assistant / Post-doctoral Fellow in active IoT (hardware/LoRA/Nb-IoT), IoT (software): 2 open posts, 01/2021-12/2022. (Contact: Dr Shell Li xl1991@hku.hk)
Research Assistant / Post-doctoral Fellow in digital twin, GIS (3D): 2 open posts, 01/2021-12/2022. (Contact: Dr Shell Li xl1991@hku.hk)
Any proposals on computation and automation for building and construction are welcome. Examples of topics are
👩🎓PhD students
👬Colleagues (RAs & visiting)
🏖️Summer interns (undergraduates)