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	acadiaregional2011_002
id	acadiaregional2011_002
authors	Lee, Dave; Brian Leounis
year	2011
title	Digital Origami: Modeling Planar Folding Structures
doi	https://doi.org/10.52842/conf.acadia.2011.x.o0g
source	Parametricism (SPC) ACADIA Regional 2011 Conference Proceedings
summary	This paper presents a surface manipulation tool that can transform any arrangement of folding planar surfaces without the need to custom program for each instance. Origami offers a finite set of paper-folding techniques that can be cataloged and tested with parametric modeling software. For this work, Rhinoceros and Grasshopper have been chosen as a software platform to generate a parametric folding tool focusing on single surface folding, particularly where surfaces can transform from one configuration to another while retaining their planarity.
series	ACADIA
last changed	2022/06/07 07:49

_id	6bf6
authors	Lee, E., Paterson, I. and Maver, T.
year	2000
title	Visualisation of Historic Village of New Lanark
source	SIGraDi’2000 - Construindo (n)o espacio digital (constructing the digital Space) [4th SIGRADI Conference Proceedings / ISBN 85-88027-02-X] Rio de Janeiro (Brazil) 25-28 september 2000, pp. 177-178
summary	The existing historic city attracts the attention of architects and educators for its architectural value and history. In addition, many researches on visualisation of historic sites such as world heritage sites are in progress in order to represent the importance of preservation and restoration. New Lanark is the best-preserved example of a cotton-spinning village from the early period of Britain’s industrialisation, and is of international significance in terms of economic, architectural and social history. The village has also been nominated for inclusion in UNESCO’s list of World Heritage Sites. This paper aims to describe development procedure of virtual historic village of New Lanark for educating people about its significant social history and a unique type of building. A multimedia environment is useful for this purpose considering dynamic links among different kinds of resources such as text, images, 3D models and animations. Through this environment people can access from where they are to virtual heritage and navigate 3D space by animation with virtual guidance.
keywords	3D City modeling
series	SIGRADI
email
last changed	2016/03/10 09:54

_id	dc4f
authors	Lee, E., Woo, S. and Sasada, T.
year	2001
title	The evaluation system for design alternatives in collaborative design
source	Automation in Construction 10 (3) (2001) pp. 295-301
summary	The evaluation of design alternatives is an important phase for supporting design decision and for producing new design concepts, and it is repeatedly processed. To proceed with the design process in standard, the repetition is reduced to minimum, and design must be optimized in limited cost and time. For smooth and fast process, lots of design alternatives are provided within the limit of possibility and they must be evaluated appropriately. It's possible to evaluate design alternatives using various media. This paper describes the characteristics of various media that have been used for evaluation of design alternatives, and propose the evaluation system for design alternatives based on the findings of case studies.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	40f8
authors	Lee, E., Woo, .S., Shiosaka, Y. and Sasada, T.
year	1998
title	Alternative Design Comparative System in Collaborative Design
doi	https://doi.org/10.52842/conf.caadria.1998.327
source	CAADRIA ‘98 [Proceedings of The Third Conference on Computer Aided Architectural Design Research in Asia / ISBN 4-907662-009] Osaka (Japan) 22-24 April 1998, pp. 327-335
summary	The evaluation of alternative design sets is important phase for quick design decision and new design conception, and it is repeatedly processed. To proceed design process in standard, the repetition is reduced to minimum. And design must be optimized in limited cost and time. For smooth and fast process lots of alternative design sets are provided within the limit of possibility and it must be evaluated appropriately. It's possible to evaluate alternative design sets using various media. This paper describes the characteristics of various media which have been used for evaluation of alternative design sets, and propose alternative design comparative system based on the findings of case studies.
keywords	Collaborative Design, VRML, JavaScript, Java, Communication
series	CAADRIA
email
more	http://www.caadria.org
last changed	2022/06/07 07:51

_id	a129
authors	Lee, E., Woo, S. and Sasada, T.
year	1997
title	Experimental Study in inter-University Collaboration collaboration
doi	https://doi.org/10.52842/conf.ecaade.1997.x.q2n
source	Challenges of the Future [15th eCAADe Conference Proceedings / ISBN 0-9523687-3-0] Vienna (Austria) 17-20 September 1997
summary	The architectural design requires collaboration among various participants, such as architects, clients, engineers in the stages of the design process. The Sasada laboratory has been involved in the various collaborative architectural design projects. The authors found several important issues in the process of those projects. Firstly, the presentation data is composed of different kinds of data such as documents, computer generated still images, movies and 3D objects. The participants involved in those projects need to access these data as necessary. Secondly, it is virtually impossible for all participants to attend at the same time and place. Therefore, computer networked collaborative design work is essential, in particular, for an international project and for a complex architectural design project.
keywords	Collaboration
series	eCAADe
email
more	http://info.tuwien.ac.at/ecaade/proc/lee/lee.htm
last changed	2022/06/07 07:50

_id	9a66
authors	Lee, H., Lee, J. and Chang, S.
year	1995
title	Design Adaptation for Handling Design Failures
source	Sixth International Conference on Computer-Aided Architectural Design Futures [ISBN 9971-62-423-0] Singapore, 24-26 September 1995, pp. 567-576
summary	This research deals with two important issues in Case-based Design (CBD): a structure of design cases and a process of design adaptation for handling design failures. The structure of design cases involves problem situation, design specification, design tasks, design solutions, causal explanation, past design failures as well as design performance. It has been noticed that how to represent a structure of design cases and how it can be used in actual a process of design adaptation process are important in Case-based Design. Adaptation process in Case-based Design is also critcial, especially in handling design failures. The description and the analysis of design adaptation process in the context of Case-based Design paradigm is the major focus of this research. A model of casual explanation is presented as an useful tool for identifying sources of design failures. For efficiently handling design failures based on causal explanation, it is essential to characterize various design failures and to devise an adequate structure of adaptation process. Applicability of adaptation process is demonstrated in an exemplary kitchen layout.
keywords	Design Failures, Design Adaptation, Causal Explanation, Adaptation Strategies
series	CAAD Futures
last changed	1999/08/03 17:16

_id	caadria2020_047
id	caadria2020_047
authors	Lee, Han Jie, Lin, Zhuoli, Zhang, Ji and Janssen, Patrick
year	2020
title	Irradiance Mappinig for Large Scale City Models
doi	https://doi.org/10.52842/conf.caadria.2020.1.803
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. 803-812
summary	This paper reports on the development of a geocomputational simulation workflow for the irradiance mapping of large scale city models. A fully automated workflow is presented, for importing CityGML city models, generating the simulation input models, executing the simulations, and aggregating the results. In order to speed up the overall processing time, the workflow uses parallel processing across multiple computers and multiple cores. Two case studies are presented, for Singapore and for Rotterdam.
keywords	Integrated irradiance simulation; Solar potential assessment ; Large scale urban 3D model; Houdini; Radiance
series	CAADRIA
email
last changed	2022/06/07 07:51

_id	caadria2014_532
id	caadria2014_532
authors	Lee, Hyunsoo; Jisoo Kim, Minkyu Shin and Jin-Kook Lee
year	2014
title	Comparison between Design Alternatives Using BIM-Enabled Circulation Analysis
doi	https://doi.org/10.52842/conf.caadria.2014.975
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 975–976
series	CAADRIA
type	poster
email
last changed	2022/06/07 07:51

_id	caadria2014_530
id	caadria2014_530
authors	Lee, Hyunsoo; Minkyeong Shim, Heuiwon Yoon and Jungeun Lee
year	2014
title	A Customized Smart Control of the Ubiquitous House
doi	https://doi.org/10.52842/conf.caadria.2014.971
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 971–972
series	CAADRIA
type	poster
email
last changed	2022/06/07 07:51

_id	ijac20064102
id	ijac20064102
authors	Lee, Jackie Chia-Hsun; Hu, Yuchang; Selker, Ted
year	2006
title	iSphere:A free-hand 3D modeling interface
source	International Journal of Architectural Computing vol. 4 - no. 1, 19-31
summary	Making 3D models should be an easy and intuitive task like free-hand sketching. This paper presents iSphere, a 24 degree of freedom 3D input device. iSphere is a dodecahedron embedded with 12 capacitive sensors for pulling-out and pressing-in manipulation on 12 control points of 3D geometries. It exhibits a conceptual 3D modeling approach for saving mental loads of low-level commands. Using analog inputs of 3D manipulation, designers are able to have high-level modeling concepts like pushing or pulling 3D surfaces. Our experiment shows that iSphere saved steps in the selection of control points in the review of menus and leading to a clearer focus on what to build instead of how to build it. Novices saved significant time learning 3D manipulation by using iSphere to making conceptual models. However, one tradeoff of the iSphere is its lack of fidelity in its analog input mechanism.
keywords	3D Input Device; Proximity Sensing; Parametric Modeling; Human-Computer Interaction
series	journal
email
more	http://www.ingentaconnect.com/content/mscp/ijac/2006/00000004/00000001/art00003
last changed	2007/03/04 07:08

_id	caadria2019_362
id	caadria2019_362
authors	Lee, Jaejong, Ikeda, Yasushi and Hotta, Kensuke
year	2019
title	Comparative Evaluation of Viewing Elements by Visibility Heat Map of 3D Isovist - Urban planning experiment for Shinkiba in Tokyo Bay
doi	https://doi.org/10.52842/conf.caadria.2019.1.341
source	M. Haeusler, M. A. Schnabel, T. Fukuda (eds.), Intelligent & Informed - Proceedings of the 24th CAADRIA Conference - Volume 1, Victoria University of Wellington, Wellington, New Zealand, 15-18 April 2019, pp. 341-350
summary	This paper presents a visibility analysis for 3D urban environments and its possible applications for urban design. This multi-view visibility analysis tool was generated by 3D isovist in Grasshopper, Rhino. The advantage of this analysis tool is that it can be compared within the measurement area. In addition, setting a visual object different from the existing isovist. The visual object is a landmark of a city space, such as landscape or object. First, the application experimented on the relevance between the calculation time and precision by this analysis tool. Based on the results of this experiment, it applied it to an actual part of an urban space. The multi-view visibility includes confirming the possibility of a comprehensive evaluation on the urban redevelopment and change of the view caused by the building layout plan - by numerical analysis showing the visual characteristics of the area while using 3D isovist theory. The practically applied area is Shinkiba, which is a part of Tokyo's landfill site; and while using the calculated data, multi-view visibility of each plan in the simulation of the visibility map is compared and evaluated.
keywords	3D isovist; Multi-view visibility; Comprehensive integration visibility evaluation; Urban redevelopment; Algorithmic urban design
series	CAADRIA
email
last changed	2022/06/07 07:51

_id	caadria2016_621
id	caadria2016_621
authors	Lee, Ji Ho and Ji-Hyun Lee
year	2016
title	Cultural Difference in Colour Usages for Building Exteriors Focusing on Theme Park Buildings
doi	https://doi.org/10.52842/conf.caadria.2016.621
source	Living Systems and Micro-Utopias: Towards Continuous Designing, Proceedings of the 21st International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2016) / Melbourne 30 March–2 April 2016, pp. 621-630
summary	The notion of globalisation has become widely spread in various fields, and accordingly, it is increasingly more important to take account of indigenous culture characteristics in each field. An as- pect of achieving globalisation, globalization with local consideration, is to consider the difference of colour usage between distinct cultures. This study suggests an approach to investigate the colour difference between eastern and western cultures with the case analysis of build- ing fac?ade colours in Disneyland Paris and Tokyo Disneyland. We an- alysed cultural colour usage characteristics and derived tendencies for both Paris and Tokyo Disneyland building fac?ade colours. To do this, we use image based k-means clustering algorithm and CIELAB colour space distances to explore colour characteristics. Our analysis indi- cates an overall colour usage tendency that Paris uses more green and bluish colours and Tokyo uses more red and yellowish colours for building fac?ades, based on CIELAB colour space values. The major motivation of this paper was to reflect the atmosphere and the mood of the space that can be easily felt but not readily expressible into a cultural colour palette. Eventually, by finding the characteristics of perceived colours, we hope to create a colour recommendation system for different cultures based on cultural clues.
keywords	Culture; colour usage; colour clustering; building fac?ade; computational approach
series	CAADRIA
email
last changed	2022/06/07 07:51

_id	caadria2010_002
id	caadria2010_002
authors	Lee, Ji-Hyun; Hyoung-June Park, Sungwoo Lim, Sun-Joong Kim, Haelee Jung and Mark Whiting
year	2010
title	A formal approach for the interpretation of cultural content(s): evolution of a Korean traditional pattern, Bosangwhamun
doi	https://doi.org/10.52842/conf.caadria.2010.019
source	Proceedings of the 15th International Conference on Computer Aided Architectural Design Research in Asia / Hong Kong 7-10 April 2010, pp. 19-28
summary	This paper develops a formal approach to investigate the evolution of a Korean traditional pattern, Bosangwhamun. The approach employs the structure of symbolic memes embedded in the pattern as a framework of hierarchical decomposition of a pattern to describe an evolutionary development process of a given pattern with a set of rules in shape grammar as style changes. Further, the formal descriptions of the given pattern become the basis for generating its variations. With this process, the validity of the rules and their appropriateness in the representation of Bosangwhamun are examined.
keywords	Culture; memes; shape grammar; hierarchical decomposition; Korean traditional patterns
series	CAADRIA
type	normal paper
email
last changed	2022/06/07 07:51

_id	caadria2007_645
id	caadria2007_645
authors	Lee, Ji-Hyun; Tian-Chiu Li
year	2007
title	Fuzzy-Based Direct Manipulation: Focused on User Participation in Apartment Plan Design Process
doi	https://doi.org/10.52842/conf.caadria.2007.x.c0b
source	CAADRIA 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Research in Asia] Nanjing (China) 19-21 April 2007
summary	Physically-based manipulation can be recognized as a promising approach to implement interactive computational tools to solve the user participation problems. To support the designer’s justifications as well as to clarify the innately ambiguous expressions provided by the clients, we propose to build a fuzzy-based expert system integrated with a 3D physically based manipulation. This paper focuses on a system prototype for the client customization process in apartment plan design to exemplify our concepts.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	ecaade2023_152
id	ecaade2023_152
authors	Lee, Jin and Hong, Seung Wan
year	2023
title	Developing the Reinforcement-Learning Child Agents for Measuring Play and Learning Performance in Kindergarten Design
doi	https://doi.org/10.52842/conf.ecaade.2023.1.069
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. 69–78
summary	Although kindergarten design requires promoting play behaviours related to physical and social development and ensuring safety of children to support a child-oriented design, the systemic evaluation of design performance remains challenging because of the children’s dynamic play behaviours. As one solution, agent-based simulations have been applied in the design field, but there are limitations in reflecting children’s behavioural richness. To overcome this shortcoming, this study developed reinforcement learning (RL) child agents to compute the dynamic play behaviours associated with physical and social development. Several iterations were conducted to implement the RL agents’ play behaviours, and the results were incorporated into the simulation. To validate the play behaviour model, we conducted a case analysis with authentic and unbuilt kindergarten designs and measured the quantifiable design performance in terms of physical and social play behaviours and safety. The results indicated that the RL child agents enabled a holistic analysis and the calculation of generative behavioural responses, depending on physical variations. By facilitating an unknown design affordance, the RL-powered simulation model is expected to provide data-driven evidence to support a child-oriented design.
keywords	Agent-based simulation, Reinforcement-learning agent, Children's play behaviour model, Quantifiable design performance, Child-oriented learning environment
series	eCAADe
email
last changed	2023/12/10 10:49

_id	caadria2014_531
id	caadria2014_531
authors	Lee, Jin-Kook; Minkyu Shin, Jisoo Kim, Hyunsoo Lee and Gyuyeob Jeon
year	2014
title	Visualization of Building Energy Consumption Data near Subway Stations
doi	https://doi.org/10.52842/conf.caadria.2014.973
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 973–974
series	CAADRIA
type	poster
email
last changed	2022/06/07 07:51

_id	caadria2018_293
id	caadria2018_293
authors	Lee, Jisun and Lee, Hyunsoo
year	2018
title	The Visible and Invisible Network of a Self-Organizing Town - Agent-Based Simulation for Investigating Urban Development Process
doi	https://doi.org/10.52842/conf.caadria.2018.2.411
source	T. Fukuda, W. Huang, P. Janssen, K. Crolla, S. Alhadidi (eds.), Learning, Adapting and Prototyping - Proceedings of the 23rd CAADRIA Conference - Volume 2, Tsinghua University, Beijing, China, 17-19 May 2018, pp. 411-420
summary	This study applies self-organization as a methodology to understand the complex process of city networks caused by interactions between spatial structures and individual behaviors. The agent-based simulations have been conducted to investigate the visible and invisible networks understanding the self-organized aspects of city development processes. To develop optimal future networks providing connectivity and accessibility this study investigates spatial network configurations from internal individual behavior and movement. As results, it was found that the spatial configurations of the agent movement trails match to the current district boundaries and the similar network patterns were seen in various control values of agent behavior settings. This study contributes to searching out the hierarchy of network structures which is an important factor for re-planning of the way system.
keywords	Agent-based simulation; network analysis ; self organization ; urban development process ; Physarum polycephalum
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	caadria2018_281
id	caadria2018_281
authors	Lee, Jisun and Lee, Hyunsoo
year	2018
title	Pneumatic Skin with Adaptive Openings - Adaptive Façade with Opening Control Integrated with CFD for Natural Ventilation
doi	https://doi.org/10.52842/conf.caadria.2018.2.143
source	T. Fukuda, W. Huang, P. Janssen, K. Crolla, S. Alhadidi (eds.), Learning, Adapting and Prototyping - Proceedings of the 23rd CAADRIA Conference - Volume 2, Tsinghua University, Beijing, China, 17-19 May 2018, pp. 143-151
summary	The unique integration of geometries and techniques allows the natural organisms to adapt to different environments in creative ways. In this study, a bio-inspired pneumatic facade is presented as a strategy to improve the efficiency of natural ventilation performance by controlling the adaptive openings. The Computational Fluid Dynamics simulation has been conducted to visualize airflows in order to explore how the changing configurations of openings enhance natural ventilation efficiency. The airflows are investigated with changes in wind speed and direction to find out the opening configurations which provide indoor airflows at the comfort level of velocities. As results, it was shown that indoor air velocities were modulated by controlling opening sizes, geometries and positions of the openings, and it was a beneficial strategy to apply the optimized opening configurations implementing automatic control. Also, the air distribution can be enhanced by changing opening configurations in changing conditions of wind speed and direction. An effective methodology for an intelligent façade opening control to encourage natural ventilation is presented in this study to deliver users comfort and efficiency.
keywords	Natural ventilation; airflow simulation; pneumatic facade; Computational Fluid Dynamics
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	caadria2019_426
id	caadria2019_426
authors	Lee, Jisun and Lee, Hyunsoo
year	2019
title	Agent-driven Accessibility and Visibility Analysis in Nursing Units
doi	https://doi.org/10.52842/conf.caadria.2019.1.351
source	M. Haeusler, M. A. Schnabel, T. Fukuda (eds.), Intelligent & Informed - Proceedings of the 24th CAADRIA Conference - Volume 1, Victoria University of Wellington, Wellington, New Zealand, 15-18 April 2019, pp. 351-360
summary	This study investigates the nursing unit design for care quality and efficient operation, evaluating visibility and walking distance of nurses in the different form of layout. Sufficient visibility from nurses' station to patient rooms and corridors can increase nurses' care abilities to understand the needs and movements of patients. The workload and time caused by nurse's walking can be diverted to patient care. Isovist analysis and agent-based simulation are experimented to investigate the effects of spatial layout on visibility and nurses' accessibility to patients. In the isovist analysis, the nurses' station facing patient rooms were more effective in nurse-to-patient visibility. In the nurse's walking trail analysis, uneven walking distance of each nurse appeared due to the asymmetric patient room layout centering the nurses' station and heavy room allocation plan. Understanding the potential impacts of design parameters enables designers to predict possible behaviors in each design alternative and to make effective and efficient design decisions for the occupants. This study underlines the role of the physical environment in the delivery of patient care and nurse's well-being. It presents an evaluation framework integrating syntactic analysis and agent-based simulation to predict the effect of the spatial layouts on the hospital activities.
keywords	Nursing unit design; Isovists; Agent-based modeling; Accessibility; Visibility
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	caadria2011_019
id	caadria2011_019
authors	Lee, Ju Hyun and Mi Jeong Kim
year	2011
title	A context immersion of mixed reality at a new stage
doi	https://doi.org/10.52842/conf.caadria.2011.199
source	Proceedings of the 16th International Conference on Computer Aided Architectural Design Research in Asia / The University of Newcastle, Australia 27-29 April 2011, pp. 199-208
summary	This paper presents a novel approach to the potential of mixed reality embodied in smart phones and ubiquitous environments. We analyzed the related works to the concept of context and mobile computing and then investigated into leading companies by interviewing senior manages of the mixed reality (MR) projects in Korea. As a result, the concept of context immersion is proposed for describing the various context relationships among the real locations, objects and persons. By considering the MR environments as a converged world, this paper characterizes the context immersion as the combination of the time & location-based, object-based and user-based contexts. Through the context immersion, users can be connected to the real life, not limited to the imagery world, thus experiencing strong immersion in the MR environments. At the end, we present the development direction for the future with a focus on the MR contents rather than the technical aspects.
keywords	Context Immersion; Mixed Reality; Augmented Reality; Ubiquitous Computing; Mobile Computing
series	CAADRIA
email
last changed	2022/06/07 07:52

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