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	fbda
authors	Jo, J.H.
year	1993
title	A Computational Design Process Model Using a Genetic Evolution Approach
source	University of Sydney, Department of Architectural and Design Science
series	thesis:PhD
last changed	2003/02/12 22:37

_id	1778
authors	Jo, Jun H. and Gero, John S.
year	1995
title	Representation and Use of Design Knowledge in Evolutionary Design
source	Sixth International Conference on Computer-Aided Architectural Design Futures [ISBN 9971-62-423-0] Singapore, 24-26 September 1995, pp. 189-203
summary	This paper describes an approach to knowledge representation for an evolutionary design process. The concept of design schemas is introduced to provide the representational framework for design knowledge. Two kinds of design schemas, the design rule schema and the design gene schema, are proposed to formulate design knowledge and interpret the knowledge into genetic codes. A design problem which is used to exemplify this approach is that of a large office layout planning problem.
keywords	Representation, Design Knowledge, Genetic Codes
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	architectural_intelligence2024_14
id	architectural_intelligence2024_14
authors	Joao Ribeiro, António Morais, Joao Miguel Silva, Filipe J. S. Brandao, Bruno Figueiredo & Paulo J. S. Cruz
year	2024
title	Robotic 3DCP fabrication of custom-fit slabs for irregular pontoons
doi	https://doi.org/https://doi.org/10.1007/s44223-024-00056-1
source	Architectural Intelligence Journal
summary	This paper presents a case study on the use of 3D concrete printing (3DCP) to qualify rocky pontoons with spaces for recreational use—namely sitting areas, circulation trails and fishing spots—and biodiversity protection—providing habitat and refuge for native marine species—with a focus on the challenges and opportunities associated with 3DCP prefabrication for such a complex topographical context. We first discuss the benefits and disadvantages of 3DCP over traditional methods for retrofitting strategies with the support of state-of-the-art literature review. We then present a methodology and an experimental case study, organized in three stages: (1) a photogrammetric survey and digital reconstruction of the site´s rocky landscape, (2) the creation of a tool to generate and optimize custom-fit slabs based on their location on site, intended use and role in the protection of the natural ecosystem, and (3) the robotic fabrication of these slabs through 3DCP. Finally, we present our key findings, revealing that 3DCP offers a viable and more efficient alternative for appropriating and revitalizing sites with a disorderly and highly complex topography.
series	Architectural Intelligence
email
last changed	2025/01/09 15:03

_id	cdrf2023_492
id	cdrf2023_492
authors	Joao Ribeiro, Joao Miguel Silva, António Morais, Bruno Figueiredo, Paulo J. S. Cruz
year	2023
title	3DCP for Complex Sites: Robotic Fabrication of Custom-Fit Slabs in Irregular Pontoons
doi	https://doi.org/https://doi.org/10.1007/978-981-99-8405-3_41
source	Proceedings of the 2023 DigitalFUTURES The 5st International Conference on Computational Design and Robotic Fabrication (CDRF 2023)
summary	This paper presents a case study on the use of 3DCP to qualify rocky pontoons with spaces for recreational use—namely sitting areas, circulation trails and fishing activities—and biodiversity protection—providing habitat and refuge for native marine species—with a focus on the challenges and opportunities associated with 3DCP prefabrication for such a complex topographical context. We first discuss the benefits and disadvantages of 3DCP over traditional methods for retrofitting strategies with the support of state-of-the-art literature review. We then present a methodology for an experimental case study, organized in three stages: (1) a photogrammetric survey and digital reconstruction of the site´s rocky landscape, (2) the creation of a tool to generate and optimize custom-fit slabs based on their location on site, intended use and role in the protection of the natural ecosystem, and (3) the robotic fabrication of these slabs through 3DCP. Finally, we present our key findings, revealing that 3DCP offers a viable and more efficient alternative for appropriating and revitalizing sites with a disorderly and highly complex topography.
series	cdrf
email
last changed	2024/05/29 14:04

_id	caadria2014_510
id	caadria2014_510
authors	Joaquim, Silvestre and Ikeda Yasushi
year	2014
title	Granularity of Control with Parametric Design in a Digital Fabrication Scope
doi	https://doi.org/10.52842/conf.caadria.2014.933
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. 933–934
series	CAADRIA
type	poster
email
last changed	2022/06/07 07:52

_id	634c
authors	Joblove, G.H. and Greenberg, D.
year	1978
title	Color spaces for computer graphics
source	Computer Graphics, vol. 12, pp. 20-25, August 1978
summary	Normal human color perception is a product of three independent sensory systems. By mirroring this mechanism, full-color display devices create colors as mixtures of three primaries. Any displayable color can be described by the corresponding values of these primaries. Frequently it is more convenient to define various other color spaces, or coordinate systems, for color representation or manipulation. Several such color spaces are presented which are suitable for applications involving user specification of color, along with the defining equations and illustrations. The use of special color spaces for particular kinds of color computations is discussed.
series	journal paper
last changed	2003/04/23 15:50

_id	2467
authors	Jockusch, Peter R.A.
year	1992
title	How Can We Achieve a Good Building?
source	New York: John Wiley & Sons, 1992. pp. 51-65 : ill. includes bibliography
summary	This paper is concerned with the reasons and purposes for which we evaluate and predict building performance. The discussion is based on the author's experience, gained through the preparation and evaluation of more than 50 major architectural competitions
keywords	An attempt is made to discover for whom and in what respect a building can be considered a 'good building,' by asking the following questions: What can prediction and evaluation of building performance achieve? How well can we assess the performance and value of an existing building within its socio-technical context? For what purposes and with what degree of confidence can the eventual performance of a designed and specified building be predicted? How do these evaluations compare to actual post occupancy performance? To what extent do the roles and motivations of assessors, evaluators, and decision makers affect the value-stating process? prediction, evaluation, performance, building, life cycle, design, architecture
series	CADline
last changed	2003/06/02 13:58

_id	caadria2021_242
id	caadria2021_242
authors	Joe, Joshua and Pelosi, Antony
year	2021
title	PARAMTR v2 - Human-Generative Design tools for prefabricating large-scale residential developments.
doi	https://doi.org/10.52842/conf.caadria.2021.1.041
source	A. Globa, J. van Ameijde, A. Fingrut, N. Kim, T.T.S. Lo (eds.), PROJECTIONS - Proceedings of the 26th CAADRIA Conference - Volume 1, The Chinese University of Hong Kong and Online, Hong Kong, 29 March - 1 April 2021, pp. 41-50
summary	Designers are encountering more issues with complexity, scale and performance requirements increase in residential projects. Prefabrication and generative design tools have the potential to significantly reduce construction time, cost, and material waste at scale. Building upon existing research, this paper further investigates how human-generative design tools can improve building performance and feasibility of prefabrication at scale whilst encouraging design variance. In this context, human-generative design tools refer to a partially algorithmic design tool that facilitates an open-box, collaborative approach to design. Following initial research-based design, a new human-generative tool was created (PARAMTR) to address the aforementioned issues using a design-based research methodology. Based on the research performed during the literature review and from initial design results, PARAMTR shows the potential to halve construction time on residential projects in combination with increased manufacturing efficiency. Design outputs share no design commonality, yet use almost 10 times less unique components across four houses when compared to existing residential projects. In combination with the overall benefits discussed and associated with prefabrication, material waste, cost, design time and complexity are expected to be reduced. The paper will discuss further progress towards designing and building smarter homes at scale.
keywords	generative design; generative prefabrication; parametric; residential; prefabrication
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	cc2f
authors	Jog, Bharati
year	1992
title	Evaluation of Designs for Energy Performance Using A Knowledge-Based System
source	New York: John Wiley & Sons, 1992. pp. 293-304 : ill. includes a bibliography
summary	Principles of knowledge-based (or expert) systems have been applied in different knowledge-rich domains such as geology, medicine, and very large scale integrated circuits (VLSI). There have been some efforts to develop expert systems for evaluation and prediction of architectural designs in this decade. This paper presents a prototype system, Energy Expert, which quickly computes the approximate yearly energy performance of a building design, analyzes the energy performance, and gives advice on possible ways of improving the design. These modifications are intended to make the building more energy efficient and help cut down on heating and cooling costs. The system is designed for the schematic design phase of an architectural project. Also discussed briefly is the reasoning behind developing such a system for the schematic design rather than the final design phase
keywords	expert systems, energy, evaluation, performance, knowledge base, architecture, reasoning, programming, prediction
series	CADline
last changed	1999/02/12 15:08

_id	ecaade2014_196
id	ecaade2014_196
authors	Johan Voordouw
year	2014
title	Digital Etching - An Alternative Approach to Drawing
doi	https://doi.org/10.52842/conf.ecaade.2014.1.557
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 1, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 557-564
summary	This paper explores an analog method of intaglio etching via digital /computational means. It qualifies an alternative approach to digital representation through the development of a narrative based architectural expression. The project, entitled Weerkas, was undertaken as an open call for the International Architecture Biennale Rotterdam 2014. The drawings used a combination of 3D computational modelling and AutoCAD drawing to explore emerging drawing technique derived from historical drawing methods. These digital drawings were photo-transferred and etched using a polymer intaglio plate to produce the final set of drawings. While analog / digital connections have been increasingly explored in architecture, it is rarely used to re-create past modes of production. While this paper counters a nostalgic approach to representation, it is anecdotal evidence of a pluralistic method in combining three-dimensional and two-dimensional drawing technique as an emerging form of architectural expression.
wos	WOS:000361384700055
keywords	Architectural representation; etching; narrative drawing
series	eCAADe
email
last changed	2022/06/07 07:52

_id	caadria2019_104
id	caadria2019_104
authors	Johan, Ryan, Chernyavsky, Michael, Fabbri, Alessandra, Gardner, Nicole, Haeusler, M. Hank and Zavoleas, Yannis
year	2019
title	Building Intelligence Through Generative Design - Structural analysis and optimisation informed by material performance
doi	https://doi.org/10.52842/conf.caadria.2019.1.371
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. 371-380
summary	Generative design (GD) is the process of defining high-level goals and constraints and then using computation to automatically explore a range of solutions that meet the desired requirements. Generative processes are intelligent ways to fast-track early design stages. The outcomes are analyzed simultaneously to inform decisions for architects and engineers. Whilst material properties have been defined as a driving agent within generative systems to calculate structure, material performance or structural capacity are not linked with early decision-making. In response, this paper sets a constrained approach upon traditional and non-traditional materials to validate the feasibility of structures. A GD tool is developed within Grasshopper using C-sharp, Karamaba3D, Galapagos and various engineering formulas. The result is a script, which prioritizes the structural qualities of material as a driving factor within generative systems and facilitates communication across different expertise.
keywords	Intelligent systems; generative design; material properties; structural analysis; evolutionary algorithms
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	ecaade2022_399
id	ecaade2022_399
authors	Johanes, Mikhael and Huang, Jeffrey
year	2022
title	Deep Learning Spatial Signature - Inverted GANs for Isovist representation in architectural floorplan
doi	https://doi.org/10.52842/conf.ecaade.2022.2.621
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 2, Ghent, 13-16 September 2022, pp. 621–629
summary	The advances of Generative Adversarial Networks (GANs) have provided a new experimental ground for creative architecture processes. However, the analytical potential of the latent representation of GANs is yet to be explored for architectural spatial analysis. Furthermore, most research on GANs for floorplan learning in architecture uses images as its main representation medium. This paper presents an experimental framework that uses one-dimensional periodic isovist samples and GANs inversion to recover its latent representation. Access to GANs’ latent space will open up a possibility for discriminative tasks such as classification and clustering analysis. The resulting latent representation will be investigated to discover its analytical capacity in extracting isovist spatial patterns from thousands of floorplans data. In this experiment, we hypothetically conclude that the spatial signature of the architectural floor plan could be derived from the degree of regularity of isovist samples in the latent space structure. The finding of this research will enable a new data-driven strategy to measure spatial quality using isovist and provide a new way for indexing architectural floorplan.
keywords	Machine Learning, Isovist, Latent Representation, GANs Inversion, Spatial Signature
series	eCAADe
email
last changed	2024/04/22 07:10

_id	ecaade2023_392
id	ecaade2023_392
authors	Johanes, Mikhael and Huang, Jeffrey
year	2023
title	Generative Isovist Transformer: Machine learning for spatial sequence synthesis
doi	https://doi.org/10.52842/conf.ecaade.2023.2.471
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 2, Graz, 20-22 September 2023, pp. 471–480
summary	While isovists have been used widely to quantify and analyze architectural space, its utilization for generative design still needs to be explored. On the other hand, advanced deep learning has shown opportunities for data-driven generative design. This research revisits the isovist capacity to represent architecture as a series of spatial sequences and extends the role of isovists beyond merely a perception model to projective agents. This paper presents the development of GIsT: Generative Isovists Transformer in sampling, learning, and generating architectural spatial sequences. By coupling isovists with discrete representation and generative deep learning models, we untapped the generative potential of isovist representation for spatial sequence synthesis. We demonstrated its capacity to learn the architectural spatial sequence and extendability via few-shots learning. The results show a promising direction toward integrating data-driven experiential spatial synthesis in future computational design tools.
keywords	Isovist, Spatial sequence, Generative Design, Discrete representation learning, Transformers, Machine Learning
series	eCAADe
email
last changed	2023/12/10 10:49

_id	acadia22_672
id	acadia22_672
authors	Johanes, Mikhael; Huang, Jeffrey
year	2022
title	Latent Isovist
source	ACADIA 2022: Hybrids and Haecceities [Proceedings of the 42nd Annual Conference of the Association of Computer Aided Design in Architecture (ACADIA) ISBN 979-8-9860805-8-1]. University of Pennsylvania Stuart Weitzman School of Design. 27-29 October 2022. edited by M. Akbarzadeh, D. Aviv, H. Jamelle, and R. Stuart-Smith. 672-683.
summary	This research leverages the development in deep learning research to develop an experimental framework for discovering machine-human interpretable spatial properties from latent isovist, a reduced dimensionality isovist representation obtained from generative adversarial networks (GANs). GAN latent space contains a wide range of semantically interpretable directions, potentially being used to quantify the spatial properties encoded in isovist representation.
series	ACADIA
type	paper
email
last changed	2024/02/06 14:04

_id	caadria2017_027
id	caadria2017_027
authors	Johanson, Madeleine, Khan, Nazmul, Asher, Rob, Butler, Andrew and Haeusler, M. Hank
year	2017
title	Urban Pinboard - Establishing a Bi-directional Workflow Between Web-based Platforms and Computational Tools
doi	https://doi.org/10.52842/conf.caadria.2017.715
source	P. Janssen, P. Loh, A. Raonic, M. A. Schnabel (eds.), Protocols, Flows, and Glitches - Proceedings of the 22nd CAADRIA Conference, Xi'an Jiaotong-Liverpool University, Suzhou, China, 5-8 April 2017, pp. 715-724
summary	Architecture is heading towards a future where data is collected, collated and presented in a dynamic platform. There is a potential for many standard processes in the industry to become automated, such as the site analysis process. Streamlining aspects of the design process allows architects to pay greater attention on creative design solutions for their buildings and less time engaging in complex, time consuming analytical programs. Urban Pinboard, a web-based GIS platform, promises to establish a bi-directional workflow between web data depositories and computational tools through the medium of a website. By doing so, the website allows users with minimal experience in computational processes to be engaged in the utilisation of these large datasets. Through the automation of these processes, relationships within the built environment industry can excel, leading towards performative driven designs.
keywords	Urban Planning; Computational Urbanism; Data-driven Design; New Workflow Models; Software Development.
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	caadria2012_095
id	caadria2012_095
authors	Johansson, Mikael and Mattias Roupé
year	2012
title	Real-time rendering of large building information models: Current state vs. state-of-the-art
doi	https://doi.org/10.52842/conf.caadria.2012.647
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 647–656
summary	With the use of Building Information Models (BIM), real-time 3D visualisations have become a natural tool in order to communicate ideas and share information between all involved parties in a project. Currently, several different BIM viewers are available for the purpose of interactive presentations and design reviews. However, as BIMs become larger and more detailed, it provides a challenge for available software solutions to manage them interactively. In this paper we present our findings from analysing three commonly used BIM viewers - Tekla BIMSight, Autodesk Navisworks and Solibri Model Viewer - in terms of real-time rendering performance. In addition we have developed a prototype BIM viewer to test modern approaches for efficient real-time rendering. Specifically, we have implemented the latest version of the Coherent Hierarchical Culling algorithm. Our results show that existing BIM viewers all share limitations in their ability to handle large and complex BIMs interactively. However, for the same test models, our prototype BIM viewer enables smooth real-time performance with no visual artefacts. The results from our tests thus shows that the technology to enable correct real-time rendering of large and complex BIMs is already accessible, but are currently not utilised by any of the tested BIM viewers.
keywords	3D graphics; BIM; real-time rendering
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	2005_399
id	2005_399
authors	Johansson, Mikael and Roupé, Mattias
year	2005
title	From CAD to VR – Implementations for Urban Planning and Building Design
doi	https://doi.org/10.52842/conf.ecaade.2005.399
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 399-405
summary	At present time, three-dimensional objects are often represented with 2D-data in urban planning and building design. In order to get all the involved parties to fully understand a certain project, this may not be enough. More and more projects therefore take use of the Virtual Reality (VR) technique as a complement to traditional 2D drawings and sketches. All the involved parties can then share a common frame of reference for all discussions regarding a certain project. Unfortunately, the technique is not yet adapted to fit the current building design process. In this paper, we present a solution for semi-automatic generation of a VR-model based on 3D CAD information and aerial photos obtained from the City Planning Authorities in Sweden. The data is imported to support real-time editing of terrain, roads and buildings. We also present a framework for importing 3D-models created in Autodesk Revit which enables a seamless integration of modern 3D CAD and VR-models. The features are implemented in a software developed at Chalmers Visualization studio (Gothenburg, Sweden) and technical details about terrain handling and speed-up techniques will be given.
keywords	Virtual Reality; 3D City modeling; Urban planning; Terrain; Visualization
series	eCAADe
email
last changed	2022/06/07 07:52

_id	2006_556
id	2006_556
authors	Johansson, Troels Degn
year	2006
title	Pictorial Genre and Discourse of Future in Digital Visualization of Architecture and Planning
doi	https://doi.org/10.52842/conf.ecaade.2006.556
source	Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 556-559
summary	This paper seeks to outline a theory of pictorial genre in discourses of future at play in digital visualisation of architecture and planning for communicative purposes. It claims that pictorial genre is crucial to the way we understand depictions of future in architectural and planning communication. Accordingly, professionals dealing with communication matters in architecture and planning should yield for a sufficient awareness of the function of pictorial genre—not least as concerns the adoption of digital technologies for the modelling and presentation of spatial matters. This is urgent since these technologies (primarily Geographic Information Systems, GIS) and software systems for spatial modelling and presentation do not include any aspect of pictorial genre in their current state of development.
keywords	Visualization; planning information; pictorial representation; genre; planning
series	eCAADe
email
last changed	2022/06/07 07:52

_id	ddss2006-hb-375
id	DDSS2006-HB-375
authors	John G. Hunt
year	2006
title	Forms of Participation in Urban Redevelopment Projects - The differing roles of public and stakeholder contributions to design decision making processes
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) 2006, Innovations in Design & Decision Support Systems in Architecture and Urban Planning, Dordrecht: Springer, ISBN-10: 1-4020-5059-3, ISBN-13: 978-1-4020-5059-6, p. 375-390
summary	This paper examines how political commitment to participatory design within the context of a major urban redevelopment project was translated into a strategy and a course of action for achieving effective participation within a demanding project timeframe. The project in question involves a new transport interchange for the city of Auckland (New Zealand), the redevelopment of a number of heritage buildings, and the introduction of new buildings to create a mixed use precinct covering three city blocks. The project, currently being implemented, has involved extensive public consultation and stakeholder participation as it has proceeded through the stages of project visioning, an open public design competition, and the development of the competition winning design. The paper draws a distinction between the contributions of stakeholders versus the public at large to the decision-making process, outlines the different kinds of participatory processes adopted by the local authority (Auckland City Council) to effectively engage and involve these two different groups and the stages in the evolution of the project at which these different contributions were introduced. The model of 'open design' proposed by van Gunsteren and van Loon is used as a basis for explaining the success of multi-stakeholder inputs at a crucial stage in project development. The paper concludes by examining the limits of applicability of the 'open design' model in the context of urban redevelopment projects in which there is broad public interest, and by suggesting a number of design decision support guidelines for the management of participatory processes.
keywords	Urban redevelopment, Public participation, Stakeholder participation, Design negotiation, Design decision support
series	DDSS
last changed	2006/08/29 12:55

_id	avocaad_2003_13
id	avocaad_2003_13
authors	John L. Heintz
year	2003
title	Communication and Value in Networked Design Coalitions
source	LOCAL VALUES in a NETWORKED DESIGN WORLD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Stellingwerff, Martijn and Verbeke, Johan (Eds.), (2004) DUP Science - Delft University Press, ISBN 90-407-2507-1.
summary	The advent of the Internet has led us to believe that we live in an era of unprecedented globalization. In the field of building design, we now expect both that the local market for design services will be altered, and that many firms will take up the opportunity to pursue commissions beyond their local market. To some extent this is true, but it is instructive to recall that in the 19th century London based architectural firms and public works designers designed buildings throughout the Empire. Designing for projects beyond the local market is not new, what is new is our expectation that such a task is now fundamentally altered, made easier and more transparent, by the abundance of new communications technologies.It remains the case that working outside one’s local context is difficult and that when doing so, problems are likely to arise out of cultural differences. Distance too imposes its burdens, as the possibility to meet other members of the team face to face is reduced as the travel costs increase. This breaks down the possibilities of building informal networks among the individual designers working for the firms that are members of the design team. A re-instantiation of this informal network can only be done on the basis of a model of formal and informal communication in the design team. Many of the difficulties of collaborative work outside one’s local market are problems that have already been with us a long time. These problems arise out of the fact that buildings are designed by heterogeneous groups of people. The members of such groups must communicate with each other to share information and coordinate decisions and actions. Yet they are in different relations to the project at hand and have differing values arising out of their different backgrounds. This leads inevitably to conflict. Therefore, if we are to discuss communication and value then we must devote our attentions to conflict.
keywords	Architecture, Local values, Globalisation, Computer Aided Architectural Design, Communication, values, informal communication, value resolution, design team, design coalition.
series	AVOCAAD
email
last changed	2006/01/16 21:38

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