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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Hits 1 to 20 of 15645

_id ecaade2018_422
id ecaade2018_422
authors Ku, Kihong and Gurjar, Satpal
year 2018
title Prototyping Method for Complex-Shaped Textile Composite Panels - Developing a digitally controlled reconfigurable mold
source Kepczynska-Walczak, A, Bialkowski, S (eds.), Computing for a better tomorrow - Proceedings of the 36th eCAADe Conference - Volume 2, Lodz University of Technology, Lodz, Poland, 19-21 September 2018, pp. 47-52
doi https://doi.org/10.52842/conf.ecaade.2018.2.047
summary While textile composites offer a wide range of formal flexibilities, a primary concern is the cost and time of creating custom mold surfaces which are typically produced through subtractive digital fabrication techniques. Alternative methods such as adjustable molds are used in high-end sail-making, and architectural researchers have examined reconfigurable molds, fiber sandwich fabrication methods, and mold-free fiber reinforced polymer (FRP) fabrication processes. In this paper, we discuss the development of a digitally controlled mold system for complex-shaped textile composite panels, aiming to reduce the need for custom milled molds. Experimental research started with producing composite samples from computer-numerically-controlled (CNC) milled foam molds. Subsequently, a digitally controlled deformable mold prototype was developed which incorporates a digital interface through which the architect's surface geometry is entered, analyzed, and transferred. The digital geometry directly controls the position of vertical actuators which adjusts the mold surface. Results of this ongoing project outline a digital process for fabricating textile composite panels, and help to define key parameters of the adjustable mold system including material properties, mechanical controls of the mold surface, paneling considerations, and digital interface.
keywords textile composites; reconfigurable mold; deformable mold; fiber reinforced polymer; digital fabrication; Arduino
series eCAADe
email
last changed 2022/06/07 07:51

_id ijac20064403
id ijac20064403
authors Kuan, Steve; Kvan, Thomas
year 2006
title CoBlocks:An Improved Voxel-based Design Tool by Object Structuring of Voxel Models
source International Journal of Architectural Computing vol. 4 - no. 4, pp. 35-55
summary This paper introduces a voxel-based collaborative modelling system called CoBlocks which was developed to support designers in building models together in a synchronized virtual environment. This is due to the fact that voxel models are gaining more attention in computer-aided design (CAD) systems as they support simple and intuitive modelling for the early design phases. However, due to the discrete nature of voxels, it is common practice in most voxel-based design systems that the voxel modelling methods have limited users to manipulate models at the level of individual voxels. From the literature, however, we might expect that voxel modelling would benefit from higher-level interaction as supported by the object structuring of such models. In light of these, a controlled lab study was therefore carried out to examine the benefits of the structuring of these models in voxel-based design systems. The results show that users prefer working with structured voxels and that they can interact better with them.
series journal
more http://www.ingentaconnect.com/content/mscp/ijac/2006/00000004/00000004/art00004
last changed 2007/03/04 07:08

_id ijac201614306
id ijac201614306
authors Kuan-Ying, Wu and Hou June-Hao
year 2016
title Spark Wall: Control responsive environment by human behaviour
source International Journal of Architectural Computing vol. 14 - no. 3, 255-262
summary Responsive environment uses human–computer interface to improve how humans experience their surroundings. Many research aimed at different kinds of interactive environment modules with new digital tectonics or computation components. However, those new environments sometimes could be manipulated by components which are less user-friendly and complex than traditional counterparts. In this article, we implemented a real responsive interface – the Spark Wall system, which use 160 actuator modules as our responsive feedback interface and depth camera as sensing input. We built up multi-modal interface for different operating purposes allowing the user to control responsive environment with their behaviour. The user could change his or her body posture to change the pattern of the wall and moreover define touch-input area on any surface. From the user’s perspective, a responsive environment should be a simple system with understandable control modes. A responsive artefact should also be able to dynamically correspond to different methods of operation according to the user’s intentions.
keywords Responsive environment, human–computer interface, surface computing, multi-modal interface, depth sensing
series journal
last changed 2016/10/05 08:21

_id 80bf
authors Kubale, Marek and Jackowski, Boguslaw
year 1985
title A Generalized Implicit Enumeration Algorithm for Graph Coloring
source Communications of the ACM. April, 1985. vol. 28: pp. 412-418 : graphs. includes bibliography
summary A generalized algorithm for graph coloring by implicit enumeration is formulated. A number of backtracking sequential methods are discussed in terms of the generalized algorithm. Some are revealed to be partially correct and inexact. A few corrections to the invalid algorithms are proposed, which cause these algorithms to guarantee optimal solutions. Finally, some computational results and remarks on the practical relevance of improved implicit enumeration algorithms are given
keywords algorithms, graphs
series CADline
last changed 2003/06/02 13:58

_id 3071
authors Kuenstle, Michael W.
year 2002
title Escarpment Study in a Virtual Flow Environment A Comparative Analysis of a Single Building Type Modeled in Varying Topological Situations [Escarpment Study in a Virtual Flow Environment. A Comparative Analysis of a Single Building Type Modeled in Varying Topological Situations]
source SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 167-171
summary This paper documents the progress of research to investigate the integration of 3-dimensional computational modeling techniques into wind mitigation analysis and design for building structures located in high wind prone areas. Some of the basic mechanics and theoretical concepts of fluid flow and wind pressure as well as their translation into design criteria for structural analysis and design are reviewed, followed by a discussion of a detailed Computational Fluid Dynamics (CFD) application case study for asimulated “3-second gust” hurricane force wind flow over a low rectangular building located in a coastal region of south Florida. The case study project models the wind flow behavior and pressure distribution over the building structure when situated in three varying conditions within a single terrain exposure category. The simulations include three-dimensional modeling of the building type constructed (1) on-grade in a flat coastal area, (2) above grade with the building elevated on structural columns, and (3) ongradedownwind of an escarpment. The techniques and parameters for development of the simulations are discussed and some preliminary interpretations of the results are evaluated by comparing their predictions to existing experimental and analytical data, with special attention paid to the numerical methods outlined in the American Society of Civil Engineers, Minimum Design Loads for Buildings and Other Structures, ASCE 7-98.
series SIGRADI
email
last changed 2016/03/10 09:54

_id 7acb
authors Kuenstle, Michael W.
year 2002
title Auto-Generative Urban Interventions: A Study of the Relationship between Building Form Generation and Urban Context Mapping
source SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 297-298
summary This project documents the progress of research developed to explore the unique relationship between building form and urban context with the application of a novel auto-generative modeling process incorporated into a speculative design methodology. The techniques and parameters for the project are reviewed relative to key concepts of D’Arcy Thompson’s dynamic “theory of transformation” and the development of the auto-generative modeling process. This is followed by a detailed discussion of the set of exchanges between the urban context (field of influence) and the formation of the building intervention that were subsequently mappedthrough a series of diagramming studies. Specific issues explored in the project focus on Thompson’s descriptive analysis of form as a “diagram of forces” and his use of flexible, deformable topological Cartesian nets (Method of Coordinates) to subject the stasis of geometric types to dynamic transformation. Some preliminary interpretations of the project results are evaluated through studies of the generative schemes deployed in different urban situations. The initial results of the study are demonstrated with a resultant schematic building design for a modest scaled intervention in the city of Miami.
series SIGRADI
email
last changed 2016/03/10 09:54

_id 79b4
authors Kuenstle, Michael W.
year 2002
title Flow Structure Environment Simulation - A Comparative Analysis of Wind Flow Phenomena and Building Structure Interaction
source Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 564-568
doi https://doi.org/10.52842/conf.ecaade.2002.564
summary This paper documents the progress of research to investigate the integration of computational modeling techniques into wind mitigation analysis and design for building structures located in high wind prone areas. Some of the basic mechanics and theoretical concepts of fluid flow and wind pressure as well as their translation into design criteria for structural analysis and design are reviewed, followed by a discussion of a detailed Computational Fluid Dynamics (CFD) application case study for a simulated “3-second gust” wind flow over a low rectangular building located in a coastal region. The case study project models the wind flow behavior and pressure distribution over the building structure when situated in three varying conditions within a single terrain exposure category. The simulations include three-dimensional modeling of the building type constructed (1) on-grade in a flat coastal area, (2) above grade with the building elevated on structural columns, and (3) on-grade downwind of an escarpment. The techniques and parameters for development of the simulations are discussed and some preliminary interpretations of the results are evaluated by comparing their predictions to existing experimental and analytical data.
series eCAADe
email
last changed 2022/06/07 07:52

_id c5d7
authors Kuffer, Monika
year 2003
title Monitoring the Dynamics of Informal Settlements in Dar Es Salaam by Remote Sensing: Exploring the Use of Spot, Ers and Small Format Aerial Photography
source CORP 2003, Vienna University of Technology, 25.2.-28.2.2003 [Proceedings on CD-Rom]
summary Dar es Salaam is exemplary for cities in the developing world facing an enormous population growth. In the last decades, unplanned settlements have tremendously expanded, causing that around 70 percent of the urban dwellers are living now-a-days in these areas. Tools for monitoring such tremendous growth are relatively weak in developing countries, thus an effective satellite based monitoring system can provide a useful instrument for monitoring the dynamics of urban development. An investigation to asses the ability of extracting reliable information on the expansion and consolidation levels (density) of urban development of the city of Dar es Salaam from SPOT-HRV and ERS-SAR images is described. The use of SPOT and ERS should provide data that is complementary to data derived from the most recent aerial photography and from digital topographic maps. In a series of experiments various classification and fusion techniques are applied to the SPOT-HRV and ERS-SAR data to extract information on building density that is comparable to that obtained from the 1992 data. Ultimately, building density is estimated by linear and non-linear regression models on the basis of an one ha kernel and further aggregation is made to the level of informal settlements for a final analysis. In order to assess the reliability, use is made of several sample areas that are relatively stable over the study period, as well as, of data derived from small format aerial photography. The experiments show a high correlation between the density data derived from the satellite images and the test areas.
series other
email
last changed 2003/03/11 20:39

_id caadria2005_b_3a_c
id caadria2005_b_3a_c
authors Kuhn Park, Ramesh Krishnamurti
year 2005
title Digital diary of a building; A system for retrieval and update of information over a building life cycle
source CAADRIA 2005 [Proceedings of the 10th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] New Delhi (India) 28-30 April 2005, vol. 2, pp. 15-25
doi https://doi.org/10.52842/conf.caadria.2005.015
summary We consider a digital diary of a building to be a system for flexibly retrieving and updating building information over the life cycle of the building – a system that is independent of any task-centric use. The key challenges to realizing such a system are the users and their intensions. For a practical demonstration of the notion we use IFC as the protocol for representing a building information model space and the concept of sorts to embrace representational flexibility. The ideas for the digital diary stem from four real construction case studies which we undertook as part of an on-going research project.
series CAADRIA
email
last changed 2022/06/07 07:52

_id ecaade2016_157
id ecaade2016_157
authors Kulcke, Matthias and Lorenz, Wolfgang E.
year 2016
title Utilizing Gradient Analysis within Interactive Genetic Algorithms
source Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 2, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 359-364
doi https://doi.org/10.52842/conf.ecaade.2016.2.359
wos WOS:000402064400035
summary The paper describes and discusses the possible integration of gradient analysis, as a method and tool for architects and designers to analyze the degree of proportion-complexity of a design, into the process of designing an object utilizing interactive genetic algorithms (IGA). A VBA implementation for AutoCAD has been developed by the authors, enabling to test the usability of genetic algorithms (GA) for minimizing the angle-redundancy and length-redundancy quotient. The gradient analysis itself has been developed on the basic assumption that the complexity of an objects appearance is reduced by redundancy, which can be measured focussing on different levels of comparison; among others e. g. variety of material, colour-combinations and proportion. The latter comes under scrutiny if the method of gradient analysis is applied.
keywords Gradient Analysis; Interactive Genetic Algorithm; Design Complexity; Redundancy; Spatial Analysis; Form and Geometry; Proportion
series eCAADe
email
last changed 2022/06/07 07:52

_id ecaade2022_109
id ecaade2022_109
authors Kulcke, Matthias and Lorenz, Wolfgang E.
year 2022
title Multilayered Complexity Evaluation within Configurators for Design - Responsible collaborative systems for architectural and product design
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. 9–18
doi https://doi.org/10.52842/conf.ecaade.2022.2.009
summary This paper describes the concept of integrating several complexity evaluation methods, previously developed and tested by the authors, into one product configurator through a technical prototype. In this case variations of an online configurator for design products based on a choice of these digital complexity evaluation methods developed between 2015 and 2020 are presented. This research shows that an integration of complexity evaluation for several Gestalt qualities in one product configurator is feasible, though the amount of aspects of each of these qualities and the necessary effort to be invested to achieve an integration that is suitable for customer use may vary. The concept is illustrated using a simple test case, i.e. an online shelf configurator.
keywords Configuration, Mass Customization, Complexity, Gestalt
series eCAADe
email
last changed 2024/04/22 07:10

_id ecaade2018_105
id ecaade2018_105
authors Kulcke, Matthias
year 2018
title Design-Bot - Using Half-Automated Qualitative Interviews as Part of Self Communication within the Design Process
source Kepczynska-Walczak, A, Bialkowski, S (eds.), Computing for a better tomorrow - Proceedings of the 36th eCAADe Conference - Volume 1, Lodz University of Technology, Lodz, Poland, 19-21 September 2018, pp. 103-108
doi https://doi.org/10.52842/conf.ecaade.2018.1.103
summary In this paper the possible use of chatbots within the design context as design-bots is explored. The prototype of a design-bot called "Nuncia" is presented and used as a basis to discuss special qualities and suitable characteristics for design-bots. Its development is based on the ongoing integration of creative writing into design courses as well as a preliminary qualitative study on customer communication, conducted with entrepreneurs in the field of handcrafted design products.
keywords chatbot; design-bot; responsive design strategies; creative writing
series eCAADe
email
last changed 2022/06/07 07:52

_id c100
authors Kulinski, Jaroslaw
year 1996
title Coherency and Automation of the Design Process Applied in CAD Systems
source Education for Practice [14th eCAADe Conference Proceedings / ISBN 0-9523687-2-2] Lund (Sweden) 12-14 September 1996, pp. 243-252
doi https://doi.org/10.52842/conf.ecaade.1996.243
summary The article discusses a few postulates concerning the desirable structure of design data base with the aim of allowing the concurrent work in the design process. It depicts the problems of simultaneous access to the data base, and discusses the problems of redundancy of design information and their consequences in the structure of the design data base. Finally, a few examples of CAD systems are examined in order to find out how they deal with the problems of design partitioning and keeping it automatically coherent as well as some educational remarks are formulated.

series eCAADe
last changed 2022/06/07 07:52

_id caadria2016_249
id caadria2016_249
authors Kuma, Taichi
year 2016
title Iterative design process between physical modelling and computational simulation for pre-tensioned grid shell structure
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. 249-258
doi https://doi.org/10.52842/conf.caadria.2016.249
summary Grid shell structures are widely used in many types of buildings. In this paper the author proposes a new grid shell structure, which is pre-tensioned by stretchable membrane. Through iterative process between physical modelling and computational simulation, one pavilion is finally presented as a demonstration of the architectur- al performance of this structure.
keywords Material computation; form finding; pavilion; grid shell; active bending
series CAADRIA
email
last changed 2022/06/07 07:52

_id d8ea
authors Kumar, Subodh and Manocha, Dinesh
year 1995
title Efficient rendering of trimmed NURBS surfaces
source Computer-Aided Design, Vol. 27 (7) (1995) pp. 509-521
summary An algorithm for the interactive display of trimmed nurbs surfaces is presented. The algorithm converts the nurbs surfaces to Bézier surfaces, and nurbs trimming curves toBézier curves. It tessellates each trimmed Bézier surface into triangles, and renders them using the triangle rendering capabilities common in current graphics systems. Itmakes use of tight bounds for the uniform tessellation of Bézier surfaces into cells and it traces the trimming curves to compute the trimmed regions of each cell. Thisoperation is based on the tracing of trimming curves, intersection computation with the cells, and triangulation of the cells. The resulting technique also makes use of spatialand temporal coherence between successive frames for cell computation and triangulation. Polygonization anomalies such as cracks and angularities are avoided as well. Thealgorithm can display trimmed models described using thousands of Bézier surfaces at interactive frame rates on high end graphics systems.
keywords Trimmed Nurbs, Bezier Surfaces, Rendering
series journal paper
last changed 2003/05/15 21:33

_id ecaade2018_w11
id ecaade2018_w11
authors Kunze, Antje, Marz, Michael and Wyka, Edyta
year 2018
title Smart Communities - Unleashing the Potential of Data for Smart Communities
source Kepczynska-Walczak, A, Bialkowski, S (eds.), Computing for a better tomorrow - Proceedings of the 36th eCAADe Conference - Volume 1, Lodz University of Technology, Lodz, Poland, 19-21 September 2018, pp. 69-70
doi https://doi.org/10.52842/conf.ecaade.2018.1.069
summary Are you excited about data, mapping and analytics and want to learn new skills? Then you'll love our hands-on workshop on how to collect and blend open and premium data with the cities' everyday planning and management tasks, analyze urban environments, and deliver the results in stunning 2D and 3D web mapping apps.
keywords smart city; GIS; data visualisation; data driven design
series eCAADe
email
last changed 2022/06/07 07:52

_id diss_kuo
id diss_kuo
authors Kuo, C.J.
year 1999
title Unsupervised Dynamic Concurrent Computer-Aided Design Assistant
source Los Angeles: UCLA
summary The increasing capability of computer-aided architectural design systems has strengthened the role that the computer plays in the workplace. Due to the complexity of developing new techniques and research, these systems are undertaken mostly by scientists and engineers without significant architectural input (Willey, 1991). The design concept of these systems may be based on a well-defined and well-understood process, which is not yet realized in architectural design (Galle, 1994). The output of such research may not be easily adapted into the design process. Most of the techniques assume a complete understanding of the design space (Gero and Maher, 1987) (Willey, 1991). The description or construction of the design space is always time and space consuming, and the result can never be complete due to the ever-changing nature of architectural design. This research intends to initiate a solution for the above problems. The proposed system is an unsupervised-dynamic-concurrent-computer-aided-design assistant. The “unsupervised” means the learning process is not supervised by the user because it is against the designer's nature to “think-aloud” in the design studio and it also increases the work load. It is dynamic because the size of the knowledge base is constantly changing. Concurrent means that there are multiple procedures active simultaneously. This research focuses on learning the operational knowledge from an individual designer and reapplying it in future designs. A computer system for this experiment is constructed. It is capable of The preliminary result shows a positive feedback from test subjects. The purpose of this research is to suggest a potent computational frame within which future developments may flourish.
series thesis:PhD
last changed 2003/11/28 07:37

_id caadria2003_b4-1
id caadria2003_b4-1
authors Kuo, Chung-Jen
year 2003
title Spatial Analysis of Chinese Garden Designs with Machine Learning
source CAADRIA 2003 [Proceedings of the 8th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 974-9584-13-9] Bangkok Thailand 18-20 October 2003, pp. 541-552
doi https://doi.org/10.52842/conf.caadria.2003.541
summary This research intends to propose a scheme for analyzing Chinese Garden Design by incorporating spatial theory, data mining, concept of object, and network-like data structure. Design elements of Chinese garden are placed in a network according to the existing gardens according to spatial theory. Collected networks are then divided into pair of elements connected by their relationship and stored in a database. Later, data mining is applied to attain patterns from the node-and-relationship pairs. Meanwhile, the elements of the same level can be classified and data grouping can be done by the implementation itself. Thru this research, we can gain insight upon the spatial information and relationship between elements of Chinese garden designs. The result is a set of more concise and structural descriptions, which reveals the rhythm behind the Chinese garden design and can be a great pedagogical aid.
series CAADRIA
email
last changed 2022/06/07 07:52

_id ecaade2024_263
id ecaade2024_263
authors Kuo, Karen; Liu, Yunsong
year 2024
title Tactile Painting Assistive Toolbox for Visual Impairment
source Kontovourkis, O, Phocas, MC and Wurzer, G (eds.), Data-Driven Intelligence - Proceedings of the 42nd Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2024), Nicosia, 11-13 September 2024, Volume 2, pp. 423–432
doi https://doi.org/10.52842/conf.ecaade.2024.2.423
summary This paper proposes a novel framework aimed at enhancing accessibility and inclusivity in architectural representation for visually impaired individuals. Traditional methods of architectural representation predominantly rely on visual stimuli, thereby excluding individuals with visual impairments from fully engaging with and comprehending architectural designs. Through a comprehensive review of existing tactile systems, including the Braille system and Feelipa, we identify the limitations of current methodologies in conveying spatial and color information effectively. Building upon these insights, our research introduces a pioneering approach that integrates color temperature—a fundamental aspect of human perception—and haptic feedback to facilitate tactile comprehension of architectural designs. By associating specific shapes with primary colors based on their perceived temperature, our framework establishes a symbiotic relationship between tactile stimuli and visual cues, thereby fostering a more intuitive understanding of color relationships and spatial configurations. Theoretical discourse, empirical experimentation, and practical application are employed to elucidate the theoretical underpinnings and practical implementation of our proposed framework. Through this interdisciplinary approach, we aim to revolutionize the way architectural representations are perceived and interpreted by visually impaired individuals, thereby fostering greater inclusivity and empowerment within the architectural discourse.
keywords Tactile Painting, Visual Impairment, Digital Fabrication, Haptic Feedback, Inclusive Design, Accessibility, Architectural Representation
series eCAADe
email
last changed 2024/11/17 22:05

_id 315caadria2004
id 315caadria2004
authors Kuo-Chung Wen, Wei-Lung Chen
year 2004
title Application of Genetic Algorithms to Establish Flooding Evacuation Path Model in Metropolitan Area
source CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 557-570
doi https://doi.org/10.52842/conf.caadria.2004.557
summary This research has shown the difficulties associated with the GIS and the flooding evacuation path search through the huge searching space generated during the network analysis process. This research also presents an approach to these problems by utilizing a search process whose concept is derived from natural genetics. Genetic algorithms (GAs) have been introduced in the optimization problem solving area by Holland (1975) and Goldberg (1989) and have shown their usefulness through numerous applications. We apply GA and GIS to choice flooding evacuation path in metropolitan area in this study. We take the region of Shiji city in Taiwan for case. That could be divided into four parts. First, is to set the population of GA operation. Second, is to choose crossover and mutation. Third, is to calculate the fitness function of each generation and to select the better gene arrangement. Fourth, is to reproduce, after evolution, we can establish Flooding Evacuation Path that more reflect really human action and choice when flood takes place. However we can apply GA to calculate different evacuation path in different time series. Final, we compare and establish real model of evacuation path model to choosing flooding evacuation path.
series CAADRIA
email
last changed 2022/06/07 07:52

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