Cumincad : CUMINCAD Papers : Search Results

CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id	caadria2023_57
id	caadria2023_57
authors	Alva, Pradeep, Mosteiro-Romero, Martin, Pei, Wanyu, Bartolini, Andrea, Yuan, Chao and Stouffs, Rudi
year	2023
title	Bottom-Up Approach for Creating an Urban Digital Twin Platform and Use Cases
doi	https://doi.org/10.52842/conf.caadria.2023.1.605
source	Immanuel Koh, Dagmar Reinhardt, Mohammed Makki, Mona Khakhar, Nic Bao (eds.), HUMAN-CENTRIC - Proceedings of the 28th CAADRIA Conference, Ahmedabad, 18-24 March 2023, pp. 605–614
summary	Smart city initiatives have been a driving force for city-level dataset collection and the development of data-driven applications that benefit effective city management. There is a need to demonstrate use cases for effective city management using the available dataset. Urban Digital Twin (UDT) is a 3D city model that can integrate multi-disciplines and improve systems operability on a digital platform. However, UDTs are developed within organisations, and there is only limited availability of authoritative open 3D datasets to explore the potential of UDT concepts. This paper reports a methodology for creating a UDT platform for visualising and querying city energy data. We demonstrate a bottom-up approach to constructing an integrated 3D city dataset and create a query system for rapid access and navigation of the 3D city dataset through a visualisation platform using Cesium Ion. Various use cases are explored based on the dataset, such as building material stock management, energy demand simulation, electric vehicles (EV) demand and flexibility, and estimation of greenhouse gas (GHG) emissions. These use cases can help decision-makers and stakeholders involved in city planning and management. Furthermore, it provides a guideline for developers willing to create UDT applications for smart city initiatives.
keywords	Energy modelling, City dataset, Urban analytics, Building Stock Management, Decarbonisation
series	CAADRIA
email
last changed	2023/06/15 23:14

_id	caadria2024_78
id	caadria2024_78
authors	Chen, Chao-Nien and Hsu, Pei-Hsien
year	2024
title	Design Optimization Through CFD-ABMS Integration for Controlling Virus Spread
doi	https://doi.org/10.52842/conf.caadria.2024.1.475
source	Nicole Gardner, Christiane M. Herr, Likai Wang, Hirano Toshiki, Sumbul Ahmad Khan (eds.), ACCELERATED DESIGN - Proceedings of the 29th CAADRIA Conference, Singapore, 20-26 April 2024, Volume 1, pp. 475–484
summary	In the wake of the pandemic, the interplay between humans, architecture, and viruses has emerged as a critical area of study. Aerosol transmission particularly within indoor environments is a key factor contributing to infections. However, contemporary research frequently isolates individual strategies such as ventilation, crowd control, protective measures, and emergency protocols, often overlooking a more comprehensive perspective. To bridge this gap, we introduce an integrated design framework for parametric environment that synergizes Computational Fluid Dynamics (CFD) and Agent-based Modeling (ABM). Furthermore, compared to large-scale environments such as cities, there is also less understanding of infection control in interior spaces. This study employs simulations to track the movement of viral particles in airflow and model spatial occupancy by workflow, providing insights into both overall particle transmission trend and spatial occupancy trends. The integration of these dual aspects facilitates a thorough assessment of transmission dynamics. Our findings, based on this integrated approach, offer recommendations for optimizing circulation patterns and spatial zoning, aiming to provide adaptability and flexibility in architectural design.
keywords	computational fluid dynamics (CFD), agent-based modeling (ABM), infection control, post-pandemic design, design integration, design optimization
series	CAADRIA
email
last changed	2024/11/17 22:05

_id	ecaade2020_214
id	ecaade2020_214
authors	Chen, Hsien and Hsu, Pei-Hsien
year	2020
title	Data Mining as a User-oriented Tool in Participatory Urban Design
doi	https://doi.org/10.52842/conf.ecaade.2020.1.011
source	Werner, L and Koering, D (eds.), Anthropologic: Architecture and Fabrication in the cognitive age - Proceedings of the 38th eCAADe Conference - Volume 1, TU Berlin, Berlin, Germany, 16-18 September 2020, pp. 11-18
summary	In this research, we did the datamining to the POI(point-of-interest) of the city, and shows how Popular times data and NPL(Natural language processing) analysis transformed user data into new tools of participatory design of urban planning. After analyzing and visualizing the popular time data of the city POI, we showed the city users' preferred place to go at different point in time. And this will figured out that at some time, same type of POI has different using condition. Based on above mentioned, we used NPL to analyze user reviews to find out the causes and provide planning suggestions. This method can offer planner a chance to understand the experience of city user at the planning stage. Comparing to the traditional method, fetching data from the social platform could be able to get the daily preference, perspective and emotion of the users, and these data can make the result of participatory urban planning accord with the demand of the users.
keywords	Popular times; NLP; Social Media; Urban Design Tool; Smart Cities
series	eCAADe
email
last changed	2022/06/07 07:55

_id	caadria2009_112
id	caadria2009_112
authors	Chen, Pei-Lin; Jen Yen
year	2009
title	A Color Combination Knowledge-Based System for Designer
doi	https://doi.org/10.52842/conf.caadria.2009.737
source	Proceedings of the 14th International Conference on Computer Aided Architectural Design Research in Asia / Yunlin (Taiwan) 22-25 April 2009, pp. 737-745
summary	The purpose of this paper is to investigate colour combination tools of visual communication designers’ need. Participants were twentythree students of Visual Communication Design Graduate School to follow the questionnaire survey and seven students of Design Doctoral Program Graduate School to follow the interview survey. The findings display that visual communication designers seldom use web-based colour combination systems. Based on the findings, we developed a colour combination support system: the adobe illustrator plug-in to proof this hypothesis. The databases of the tool use the book of “colour combination charts”, and the tool of this paper provides a personal database.
keywords	Colour; colour image; colour set; colour combination
series	CAADRIA
email
last changed	2022/06/07 07:55

_id	caadria2009_069
id	caadria2009_069
authors	Chen, Yen-Ling; Pei-Chien Hung
year	2009
title	Intuitive Augmented Reality Navigation System Design- Implementation By Next-Gene20 Project
doi	https://doi.org/10.52842/conf.caadria.2009.351
source	Proceedings of the 14th International Conference on Computer Aided Architectural Design Research in Asia / Yunlin (Taiwan) 22-25 April 2009, pp. 351-360
summary	The objective of this paper is to implement Augmented Reality framework in the navigation system of NEXT GENE 20 project. As a result, users can navigate and explore 3D virtual reality environment or scene in a more intuitive and interactive manner.
keywords	Navigation system, Augmented Reality
series	CAADRIA
email
last changed	2022/06/07 07:55

_id	caadria2010_055
id	caadria2010_055
authors	Chen, Zi-Ru; Chung-Yang Wang, Pei-Chien Hung and Yu-Tung Liu
year	2010
title	Preliminary tectonic phenomena of diversified architectural spatial forms in digital age
doi	https://doi.org/10.52842/conf.caadria.2010.599
source	Proceedings of the 15th International Conference on Computer Aided Architectural Design Research in Asia / Hong Kong 7-10 April 2010, pp. 599-608
summary	The research on tectonics in the architectural field began from the middle of nineteenth century and in recent twenty years digital technology gradually developed and permeated through the field of architecture. Liu and Lim (2006, 2009) integrated classic and digital tectonic factors a present framework of new tectonics. However, the previous studies related to the tectonics in this digital age were only on architectural cases that use a great deal of digital media. The research wants to know what and how the tectonic factors affect the different spatial forms of modern architecture and focused on a case study of the diversified spatial forms, orthogonal, folding and curving. The results show the classic tectonic thinking is imperative until now. It is critical to prove the significance of adding the new digital tectonic factors in digital age.
keywords	Digital and classic tectonics; spatial form; digital media
series	CAADRIA
email
last changed	2022/06/07 07:55

_id	caadria2022_194
id	caadria2022_194
authors	Cheung, Ling Kit, Xu, Zhitao, Chen, Pei and Makki, Mohammed
year	2022
title	An Alternative Model for Urban Renewal: A Generative Approach to the (Re)-Development of Xian Village
doi	https://doi.org/10.52842/conf.caadria.2022.1.181
source	Jeroen van Ameijde, Nicole Gardner, Kyung Hoon Hyun, Dan Luo, Urvi Sheth (eds.), POST-CARBON - Proceedings of the 27th CAADRIA Conference, Sydney, 9-15 April 2022, pp. 181-190
summary	The impact of urban renewal, specifically in countries experiencing rapid urbanisation due to population growth, has resulted in the erasure of urban culture and heritage in favour of repetitive homogeneity that has been synonymous with 20th century modernist planning models. One such region experiencing this rapid urban renewal is the Guangzhou region in southern China. The presented experiments examine Xian Village in Guangzhou, a culturally rich urban tissue currently experiencing redevelopment, and proposes an alternative model for urban renewal, employing a bottom-up approach to urban growth through the use of a multi-objective evolutionary model; presenting a model that integrates historic and existing urban characteristics adapted to future development plans.
keywords	China, Guangzhou, Xian Village, Village in the City, Urban Renewal, Cultural and Heritage Preservation, Multi-Objective Evolutionary Algorithm (MOEA), SDG 10, SDG 11, SDG 13
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	sigradi2018_1609
id	sigradi2018_1609
authors	Chia, Hsu Yi; Hsien, Hsu Pei
year	2018
title	The fabrication and application of parametric inflatable structure
source	SIGraDi 2018 [Proceedings of the 22nd Conference of the Iberoamerican Society of Digital Graphics - ISSN: 2318-6968] Brazil, São Carlos 7 - 9 November 2018, pp. 684-689
summary	This study uses parametric design to optimize the process and application of the inflatable method. Inflatable design has advantages of light weight, integral forming, volume change, etc., but the manufacturing process often requires the development of molds, a large number of manual heat seals, etc. Inspired by the structure principle of amputated wing tube structure, coupled with the advantages of parameterization and digital tool heat sealing, The same material can be made at different tightness, because the tight design with different angles has more structural characteristics and bending properties, thereby generating more complex spatial structures. Different materials also have corresponding manufacturing methods, which also increase the opportunities for application in architectural design.
keywords	Robotic arms fabrication; Inflatable Shape-change; pneumatic; bending mechanism; pavilion design;
series	SIGRADI
email
last changed	2021/03/28 19:58

_id	ecaade2023_357
id	ecaade2023_357
authors	Hsu, Hua-Chun and Hsu, Pei-Hsien
year	2023
title	An Integrated Method for the Mesh Representation and Segmentation of Kagome Weaving Geometries
doi	https://doi.org/10.52842/conf.ecaade.2023.1.599
source	Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 1, Graz, 20-22 September 2023, pp. 599–608
summary	This research presents an integrated method for the mesh representation, and also segmentation methods of Kagome Weaving Geometries. "Kagome Weaving" refers to a traditional bamboo weaving technique where triaxial strips are interlocked to create a stable structure. However, the traditional techniques heavily rely on inherited knowledge and experience, and the complexity of the weaving process, coupled with the length limitation of bamboo, restrict its application as diverse architectural elements. The limitations also hinder the exploration of sustainability through design. To address these challenges, this research combines traditional weaving processes with computational design tools, developing a strip representation algorithm that incorporates characteristics of fabrication processes and mesh segmentation method. This integrated design process enables the exploration of fabricable geometry information for weaving at an architectural scale beyond the limitations imposed by the length of bamboo, especially during the digital prototyping stage. Moreover, it allows designers to focus on exploring various forms. Additionally, we have developed indicators for fabricable geometry information assess material efficiency and construct curvature characteristics. This study can be applied to non-structural elements in architecture, such as building facades, interior design, frames, and templates, providing designers with more efficient and feasible methods.
keywords	Computational Design, Digital Craft, Kagome Weaving, Mesh Topology, Mesh Segmentation, Natural Material, Bamboo, SDG 9, SDG 11
series	eCAADe
email
last changed	2023/12/10 10:49

_id	caadria2015_032
id	caadria2015_032
authors	Hsu, Pei-Hsien
year	2015
title	Architectural Visualization and Communication through Mobile Augmented Reality
doi	https://doi.org/10.52842/conf.caadria.2015.283
source	Emerging Experience in Past, Present and Future of Digital Architecture, Proceedings of the 20th International Conference of the Association for Computer-Aided Architectural Design Research in Asia (CAADRIA 2015) / Daegu 20-22 May 2015, pp. 283-292
summary	Shifting from head-mounted display to smart devices, there is a new context for augmented reality and its applications. This paper describes a project aiming to re-examine factors of smart-device-based augmented reality and its applications as a tool to support collaborative design and communication, leading to a redefinition of augmented itself and a theoretical framework based on the relationship between virtual content, screen and the body.
keywords	Design collaboration; augmented reality; visualization.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	cf2009_614
id	cf2009_614
authors	Hung, Pei-Chien
year	2009
title	How do media influence one’s thinking? The “habit media” in design thinking
source	T. Tidafi and T. Dorta (eds) Joining Languages, Cultures and Visions: CAADFutures 2009, PUM, 2009, pp. 614- 625
summary	This paper presents a preliminary observation of the digital media as “habit media” in designing act. The digital media has become a costumed vehicle for designers for a long time. The author investigated the supports of different media for how a specific media conditioned the design thinking and the reasons behind the behaviors of choice-use of designers’ choice. The results showed that designers using “habit media” could do most part of things they wanted to do; when the media are “habit media”, its inherent restrictions do not limit user’s accomplishment. Once a digital medium is habitually practiced, it can support the functions and characteristics that this medium does not ever possess.
keywords	Habit media, design thinking, cognitive behavior
series	CAAD Futures
email
last changed	2009/06/08 20:53

_id	caadria2025_140
id	caadria2025_140
authors	Li, Han, Zhang, Yin, Li, Qianqian, Tong, Xing, He, Haoyang, Pei, Wanyu, Li, Shuyang and Stouffs, Rudi
year	2025
title	A Model-based Location Optimising Framework: Spatio-temporal analysis of effective concrete recycling infrastructure site selection
source	Dagmar Reinhardt, Nicolas Rogeau, Christiane M. Herr, Anastasia Globa, Jielin Chen, Taro Narahara (eds.), ARCHITECTURAL INFORMATICS - Proceedings of the 30th CAADRIA Conference, Tokyo, 22-29 March 2025, Volume 3, pp. 509–518
summary	With urban renewal and carbon neutrality requirements, promoting and achieving building material circulation is essential. Concrete, a widely utilized building material, emits substantial amounts of embedded carbon throughout its entire lifecycle. Hence, establishing concrete reprocessing facilities plays a crucial role in promoting sustainable urban development. However, previous studies on optimizing location, assessing environmental impacts, and evaluating economic feasibility remain limited. This paper aims to develop a multi-objective and dynamic location selection model for concrete recycling facilities. This model integrates the temporal dimension of material flows by considering the urban demolition and reconstruction process. It was developed based on a backup coverage location problem (BCLP) and integrated into a multi-objective reinforcement learning model (MORL), integrating two sub-models, material flows model and cost distance model. This study uses Yangpu District of Shanghai as a research case. The model outputs align with the demolition plan of the local government, indicating that the spatial-temporal location optimization model has practical value in the real context of urban renewal. This dynamic location selection model can support facility location problem-solving in a temporally changing environment.
keywords	Concrete recycling facility, Multi-objective model, Location optimization, Urban dynamic renewal
series	CAADRIA
email
last changed	2025/04/18 12:27

_id	ecaade2022_324
id	ecaade2022_324
authors	Lin, Yu-Ting and Hsu, Pei-Hsien
year	2022
title	Dynamic Inflatable Structures and Digital Fabrication Process
doi	https://doi.org/10.52842/conf.ecaade.2022.1.311
source	Pak, B, Wurzer, G and Stouffs, R (eds.), Co-creating the Future: Inclusion in and through Design - Proceedings of the 40th Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2022) - Volume 1, Ghent, 13-16 September 2022, pp. 311–320
summary	Inflatable structures made of flat film materials have an advantage of low cost, lightweight and rapid deployment, but the variation of their forms is relatively limited, and it is a challenge to produce pneumatic deformations. This paper proposes a designing and manufacturing process of inflatable structures which are made of flat film materials and are able to perform dynamic movements. The process includes steps in which a target 3D surface is produced through programmed 2D paths heat-sealed on flat films of different thickness, leading to a structure composed of air chambers. A parametric modelling procedure and associated principles are developed for the relationship between the forms of a flat-film-based inflatable structure and the heat sealing patterns on the film. A system of double-layer air chambers was designed to control the direction of bending movements. In addition, the form variation of a designed inflatable structure can be achieved by a parametric design process described in this paper.
keywords	Pneumatic Structural System, Inflatable Structure, Digital Fabrication, Design Tool, Kinetic Structure
series	eCAADe
email
last changed	2024/04/22 07:10

_id	895d
authors	Liou, S.-R., Vakalo, E.-G. and Chang, K.-C.
year	1997
title	An Experiment on Hybrid Architectural Form-Making
source	CAAD Futures 1997 [Conference Proceedings / ISBN 0-7923-4726-9] München (Germany), 4-6 August 1997, pp. 837-842
summary	This paper illustrates an approach to hybrid architectural form-making. A hypothetical project - the Des Moines Art Center 3rd Addition - is employed as a design experiment. The computer is used as a form-searching medium in the form-making process. Suggesting an addition to the existing center designed by Saarinen, Pei, and Meier, the designer is confronting the problem of how to respond to the three distinct architectural styles. The proposed solution to this problem is to create a hybrid building which inherits architectural properties from those precedents. Potentials of the use of the computer for such task are discussed.
series	CAAD Futures
email
last changed	1999/04/06 09:19

_id	caadria2020_363
id	caadria2020_363
authors	Pal, Abhipsa, Chan, Wi Leen, Tan, Ying Yi, Chia, Pei Zhi and Tracy, Kenneth Joseph
year	2020
title	Knit Concrete Formwork
doi	https://doi.org/10.52842/conf.caadria.2020.1.213
source	D. Holzer, W. Nakapan, A. Globa, I. Koh (eds.), RE: Anthropocene, Design in the Age of Humans - Proceedings of the 25th CAADRIA Conference - Volume 1, Chulalongkorn University, Bangkok, Thailand, 5-6 August 2020, pp. 213-222
summary	The manufacture of concrete funicular shells often relies on traditional formwork construction techniques to provide a sculptured cavity for the fluid material to occupy (Bechthold, 2004). While this enables a predictable geometric outcome, the extensive use of timber and/or steel to construct these formworks account for up to 60% of the total production cost of concrete and are discarded after the casting is complete (Lloret et al. 2014). Thus, we propose an alternative method to create prefabricated modular systems out of concrete casted in customised tubular knitted membranes. These perform as a network of struts that can be affixed onto 3D printed nodes of a singular design. Altogether, these components serve as a kit-of-parts that can be transported to site and assembled together to create shell geometries.
keywords	Knitted Textile; Fabric Formwork; Concrete Casting
series	CAADRIA
email
last changed	2022/06/07 08:00

_id	caadria2024_380
id	caadria2024_380
authors	Pei, Lulu, Tang, Chao and Herr, Christiane M.
year	2024
title	Interdisciplinary Collaboration in the Design Process of Interactive Exhibits Focusing on New Materials
doi	https://doi.org/10.52842/conf.caadria.2024.3.441
source	Nicole Gardner, Christiane M. Herr, Likai Wang, Hirano Toshiki, Sumbul Ahmad Khan (eds.), ACCELERATED DESIGN - Proceedings of the 29th CAADRIA Conference, Singapore, 20-26 April 2024, Volume 3, pp. 441–448
summary	The study reported in this paper focuses on the creation of captivating and innovative interactive science and technology museum exhibits by leveraging digital technology to support interdisciplinary collaborative design in the context of a rapidly evolving technological landscape. In introducing new prospects for science and technology museum exhibit design we focus on a specific theme-related question: How can the distinctive properties of graphene, a key future material, be made accessible in a high quality educational spatial experience through a collective, collaborative, and interdisciplinary design process that transcends boundaries of scale and conventional professional purview? To address this question, we first observed a multidisciplinary team comprising architects, material scientists, educational experts, and technology designers engaged in applied spatial interactive exhibit design for science and technology museums. Based on a critical analysis of this design process, we propose a new type of design workflow, leveraging the synergetic effects of interdisciplinary cooperation to foster novel types of digital spatial design approaches. The paper finally reports on the simulation and testing of the technical features of the designed exhibit and summarizes generalizable observations regarding the viability of the design process in broader contexts.
keywords	Interdisciplinary Collaboration, Graphene Materials, Interactive Technology Exhibits, Technology Education, Digital Design Process.
series	CAADRIA
email
last changed	2024/11/17 22:05

_id	caadria2021_261
id	caadria2021_261
authors	Pei, Wanyu, Guo, Xiangmin and Lo, TianTian
year	2021
title	Detecting Virtual Perception Based on Multi-Dimensional Biofeedback - A Method to Pre-Evaluate Architectural Design Objectives
doi	https://doi.org/10.52842/conf.caadria.2021.2.183
source	A. Globa, J. van Ameijde, A. Fingrut, N. Kim, T.T.S. Lo (eds.), PROJECTIONS - Proceedings of the 26th CAADRIA Conference - Volume 2, The Chinese University of Hong Kong and Online, Hong Kong, 29 March - 1 April 2021, pp. 183-192
summary	In the information age, the attention to architectural design has gradually shifted from spatial aesthetics to the human's spatial experience. The situation of human perception becomes essential feedback information that designers can use to improve the design schemes. This research proposes an auxiliary method for pre-evaluating the architectural design goals and providing recommendations for architects to optimize the scheme. Specifically, by aggregating and quantitative analyzing electrophysiological signals and eye-tracking data, this research obtained the user's spatial perception with little effect of subjective consciousness as their feedback on the architectural environment. We took the campus outdoor space of an International School of Design as the research sample. By combining the architect's design concept and objectives, we constructed the contrast spatial schemes in virtual reality (VR) for users to experience and analyzed the usability of this method when pre-evaluate design objectives in a practical project.
keywords	multi-dimensional biofeedback; architectural design objectives; pre-evaluation; virtual reality
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	caadria2020_254
id	caadria2020_254
authors	Pei, Wanyu, LO, TianTian and Guo, Xiangmin
year	2020
title	A Biofeedback Process: Detecting Architectural Space with the Integration of Emotion Recognition and Eye-tracking Technology
doi	https://doi.org/10.52842/conf.caadria.2020.2.263
source	D. Holzer, W. Nakapan, A. Globa, I. Koh (eds.), RE: Anthropocene, Design in the Age of Humans - Proceedings of the 25th CAADRIA Conference - Volume 2, Chulalongkorn University, Bangkok, Thailand, 5-6 August 2020, pp. 263-272
summary	This paper coincides with the conference theme that people have gradually become a vital force influencing the environmental system. In the future, it is necessary to study the influence of not only the built environment on people but also people's feedback on environmental design. This study explores the â€Žprocesses of interactive design using both emotion recognition and eye-tracking of users. By putting on wearable devices to roam and perceive in a virtual reality space, the physiological data of the users are collected in real-time and used to analyze their emotional responses and visual attention to the spaces. This method will provide an auxiliary way for non-architectural professional users to participate in architectural space design. At present, there is a lack of research on the comprehensive application of eye movement knowledge and emotional feedback in architectural space design. This integration will help professional designers to optimize the design of architectural space. For this paper, we review existing research and proposing an interactive design workflow that integrates eye tracking and emotion recognition. This workflow will help with the next stage of research to understand the design of a new International School of Design building.
keywords	Perception detection; Architectural space environment; Interactive design; Virtual reality
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	caadria2024_259
id	caadria2024_259
authors	Pei, Wanyu, Xiong, Shuyan, Habert, Guillaume and Stouffs, Rudi
year	2024
title	An Ontology-based Reasoning Framework: Towards Multi-level and Data-efficient Building Material Stock Modelling
doi	https://doi.org/10.52842/conf.caadria.2024.2.335
source	Nicole Gardner, Christiane M. Herr, Likai Wang, Hirano Toshiki, Sumbul Ahmad Khan (eds.), ACCELERATED DESIGN - Proceedings of the 29th CAADRIA Conference, Singapore, 20-26 April 2024, Volume 2, pp. 335–344
summary	The materials stored in existing urban buildings represent a significant share of globally accumulated resources, the composition and quantity of which should be tracked for management and reuse purposes. Due to the coarse-grained nature of building data at the city level, the description of building material stock (BMS) is usually limited to the material intensity (MI) level of several key materials, omitting the component-level analysis of construction elements, and building devices. Hence, a flexible and compatible modelling framework is needed for BMS modelling to adopt different levels of detailed building data. This study proposes an ontology-based framework, which sets the characteristics of available building data as context and makes reasoning for a feasible modelling level. An ontology is developed to capture context knowledge and define the BMS concepts and their properties. A reasoning algorithm is designed to query and categorise building instances with the same attributes into an archetype, to integrate their various granularity of property data, and to calculate the material stocks at appropriate levels. Some Singapore buildings are used for ontology instantiation and explanation. This framework is anticipated to be a new paradigm for multi-level BMS modelling and contribute strategies for urban circularity design.08644890
keywords	circular city, building material stock, domain ontology, multi-level modelling, missing-data imputation
series	CAADRIA
email
last changed	2024/11/17 22:05

_id	acadia23_v2_44
id	acadia23_v2_44
authors	Pei, Wanyu; Stouffs, Rudi
year	2023
title	Parametric Archetype: A Synthetic Digital Method of Buildings Material Stock Representation Based on Distance Measurement
source	ACADIA 2023: Habits of the Anthropocene: Scarcity and Abundance in a Post-Material Economy [Volume 2: Proceedings of the 43rd Annual Conference for the Association for Computer Aided Design in Architecture (ACADIA) ISBN 979-8-9891764-0-3]. Denver. 26-28 October 2023. edited by A. Crawford, N. Diniz, R. Beckett, J. Vanucchi, M. Swackhamer 44-52.
summary	Building material stock (BMS) is a crucial inventory of secondary resources which contain comprehensive information for analyzing the potential of material reuse and urban harvesting. Due to the complexity of urban building systems and the large number of buildings, obtaining building information one by one is impractical. Existing methods for stock representation mainly start from data collection, and utilize techniques such as clustering, machine learning, computer vision, et cetera, to process and analyze large and complete datasets. However, it is noticed that data on urban buildings, especially for building materials, is very limited or rather inaccessible. Existing methods cannot be applied in data-scarce cities and are also challenging to update over time. Therefore, this study proposes a synthetic approach named parametric archetype for the digital repre- sentation of BMS. This approach combines distance measurement, which is a distance within dimensions describing building features, to match instance buildings dynamically to a parametric archetype with the highest similarity. The weight and types of different building features, which may influence building material (composition and properties) in distance measurement, can be determined by supervised, semi-supervised, or unsuper- vised learning, whether relying on ample available data or domain rules/expert knowledge when data is scarce. This way, the parametric archetype model can use data more effi- ciently to form a synthetic and extensible representation for urban-level BMS (Figure 1). The parametric archetype is anticipated to offer an approach for describing, quantifying, and modeling the real building material stock system incrementally and transparently.
series	ACADIA
type	paper
email
last changed	2024/12/20 09:12

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