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 85

_id ascaad2006_paper8
id ascaad2006_paper8
authors Abdullah, Sajid; Ramesh Marasini and Munir Ahmad
year 2006
title An Analysis of the Applications of Rapid Prototyping in Architecture
source Computing in Architecture / Re-Thinking the Discourse: The Second International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD 2006), 25-27 April 2006, Sharjah, United Arab Emirates
summary Rapid prototyping (RP) techniques are widely used within the design/manufacturing industry and are well established in manufacturing industry. These digital techniques offer quick and accurate prototypes with relatively low cost when we require exact likeness to a particular scale and detail. 3D modeling of buildings on CAD-systems in the AEC sector is now becoming more popular and becoming widely used practice as the higher efficiency of working with computers is being recognized. However the building of scaled physical representations is still performed manually, which generally requires a high amount of time. Complex post-modernist building forms are more faithfully and easily represented in a solid visualization form, than they could be using traditional model making methods. Using RP within the engineering community has given the users the possibility to communicate and visualize designs with greater ease with the clients and capture any error within the CAD design at an early stage of the project or product lifecycle. In this paper, the application of RP in architecture is reviewed and the possibilities of modeling architectural models are explored. A methodology of developing rapid prototypes with 3D CAD models using methods of solid freeform manufacturing in particular Fused Deposition Modeling (FDM) is presented and compared against traditional model making methods. An economical analysis is presented and discussed using a case study and the potential of applying RP techniques to architectural models is discussed.
series ASCAAD
email s.abdullah@tees.ac.uk
last changed 2007/04/08 17:47

_id ecaade2015_280
id ecaade2015_280
authors Adilenidou, Yota
year 2015
title Error as Optimization - Using Cellular Automata Systems to Introduce Bias in Aggregation Models through Multigrids
source Martens, B, Wurzer, G, Grasl T, Lorenz, WE and Schaffranek, R (eds.), Real Time - Proceedings of the 33rd eCAADe Conference - Volume 2, Vienna University of Technology, Vienna, Austria, 16-18 September 2015, pp. 601-610
summary This paper is focusing on the idea of error as the origin of difference in form but also as the path and the necessity for optimization. It describes the use of Cellular Automata (CA) for a series of structural and formal elements, whose proliferation is guided through sets of differential grids (multigrids) and leads to the buildup of big span structures and edifices as, for example, a cathedral. Starting from the error as the main idea/tool for optimization, taxonomies of morphological errors occur and at a next step, they are informed with contextual elements to produce an architectural system. A toolbox is composed that can be implemented in different scales and environmental parameters, providing variation, optimization, complexity and detail density. Different sets of experiments were created starting from linear structural elements and continuing to space dividers and larger surface components.
wos WOS:000372316000067
series eCAADe
email yota_adilenidou@hotmail.com
more https://mh-engage.ltcc.tuwien.ac.at/engage/ui/watch.html?id=5cf73be0-6e8f-11e5-b7a4-1b188b87ef84
last changed 2016/05/16 09:08

_id b0e7
authors Ahmad Rafi, M.E. and Karboulonis, P.
year 2000
title The Re-Convergence of Art and Science: A Vehicle for Creativity
source CAADRIA 2000 [Proceedings of the Fifth Conference on Computer Aided Architectural Design Research in Asia / ISBN 981-04-2491-4] Singapore 18-19 May 2000, pp. 491-500
summary Ever-increasing complexity in product design and the need to deliver a cost-effective solution that benefits from a dynamic approach requires the employment and adoption of innovative design methods which ensure that products are of the highest quality and meet or exceed customers' expectations. According to Bronowski (1976) science and art were originally two faces of the same human creativity. However, as civilisation advances and works became specialised, the dichotomy of science and art gradually became apparent. Hence scientists and artists were born, and began to develop work that was polar opposite. The sense of beauty itself became separated from science and was confined within the field of art. This dichotomy existed through mankind's efforts in advancing civilisation to its present state. This paper briefly examines the relationship between art and science through the ages and discusses their relatively recent re-convergence. Based on this hypothesis, this paper studies the current state of the convergence between arts and sciences and examines the current relationship between the two by considering real world applications and products. The study of such products and their successes and impact they had in the marketplace due to their designs and aesthetics rather than their advanced technology that had partially failed them appears to support this argument. This text further argues that a re-convergence between art and science is currently occurring and highlights the need for accelerating this process. It is suggested that re-convergence is a result of new technologies which are adopted by practitioners that include effective visualisation and communication of ideas and concepts. Such elements are widely found today in multimedia and Virtual Environments (VEs) where such tools offer increased power and new abilities to both scientists and designers as both venture in each other's domains. This paper highlights the need for the employment of emerging computer based real-time interactive technologies that are expected to enhance the design process through real-time prototyping and visualisation, better decision-making, higher quality communication and collaboration, lessor error and reduced design cycles. Effective employment and adoption of innovative design methods that ensure products are delivered on time, and within budget, are of the highest quality and meet customer expectations are becoming of ever increasing importance. Such tools and concepts are outlined and their roles in the industries they currently serve are identified. Case studies from differing fields are also studied. It is also suggested that Virtual Reality interfaces should be used and given access to Computer Aided Design (CAD) model information and data so that users may interrogate virtual models for additional information and functionality. Adoption and appliance of such integrated technologies over the Internet and their relevance to electronic commerce is also discussed. Finally, emerging software and hardware technologies are outlined and case studies from the architecture, electronic games, and retail industries among others are discussed, the benefits are subsequently put forward to support the argument. The requirements for adopting such technologies in financial, skills required and process management terms are also considered and outlined.
series CAADRIA
email ahmadrafi.eshaq@mmu.edu.my, karboulonis@clara.co.uk
last changed 2003/11/21 14:15

_id 9b44
authors Ahmad Rafi, M.E. and Karboulonis, P.
year 2000
title The Importance of Virtual Environments in the Design of Electronic Games and Their Relevance to Architecture
source Promise and Reality: State of the Art versus State of Practice in Computing for the Design and Planning Process [18th eCAADe Conference Proceedings / ISBN 0-9523687-6-5] Weimar (Germany) 22-24 June 2000, pp. 181-185
summary Ever increasing complexity in architectural design and the need to deliver a cost effective solution requires the employment and adoption of innovative design methods. Although technological changes have entered the field of architecture at a slower pace, the recent adoption of 3D modelling, Virtual Environment and multimedia represent significant changes in architectural design, visualisation and presentation. These now include tools for conceptualisation, design synthesis, design presentation, desktop publishing, animation, Internet and hypermedia authoring. Uddin argues that the major activities involved in the creative and dynamic process of architectural design deal with conceptualisation, visualisation and expression of alternative ideas through two-dimensional and three-dimensional model. This paper highlights the need for the employment of emerging computer based real-time interactive technologies that are expected to enhance the design process through better decision-making, higher quality communication and collaboration, error reduction, spatial awareness, interactive design and real-time visualisation.
keywords CAD, Game Design, Virtual Reality, Virtual Environments, Virtual Prototyping, Internet Technologies, Architecture
series eCAADe
email ahmadrafi.eshaq@mmu.edu.my
more http://www.uni-weimar.de/ecaade/
last changed 2003/11/21 14:15

_id bb5f
authors Ahmad Rafi, M.E. and Mohd Fazidin, J.
year 2001
title Creating a City Administration System (CAS) using Virtual Reality in an Immersive Collaborative Environment (ICE)
source Architectural Information Management [19th eCAADe Conference Proceedings / ISBN 0-9523687-8-1] Helsinki (Finland) 29-31 August 2001, pp. 449-453
summary Current problems in administration of a city are found to be decentralized and noninteractive for an effective city management. This usually will result in inconsistencies of decision-making, inefficient services and slow response to a particular action. City administration often spends more money, time and human resource because of these problems. This research demonstrates our research and development of creating a City Administration System (CAS) to solve the problems stated above. The task of the system is to use information, multimedia and graphical technologies to form a database in which the city administrators can monitor, understand and manage an entire city from a central location. The key technology behind the success of the overall system uses virtual reality and immersive collaborative environment (ICE). This system employs emerging computer based real-time interactive technologies that are expected to ensure effective decisionmaking process, improved communication, and collaboration, error reduction, (Rafi and Karboulonis, 2000) between multi disciplinary users and approaches. This multi perspective approach allows planners, engineers, urban designers, architects, local authorities, environmentalists and general public to search, understand, process and anticipate the impact of a particular situation in the new city. It is hoped that the CAS will benefit city administrators to give them a tool that gives them the ability to understand, plan, and manage the business of running the city.
keywords City Administration System (CAS), Virtual Reality, Immersive Collaborative Environment (ICE), Database
series eCAADe
email ahmadrafi.eshaq@mmu.edu.my, fazidin@mmu.edu.my
last changed 2003/11/21 14:15

_id avocaad_2001_05
id avocaad_2001_05
authors Alexander Koutamanis
year 2001
title Analysis and the descriptive approach
source AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary The rise of consciousness concerning the quality of working and living conditions has been a permanent though frequently underplayed theme in architecture and building since the reconstruction period. It has led to an explosive growth of programmatic requirements on building behaviour and performance, thus also stimulating the development of design analysis. The first stage of development was characterized by the evolution of prescriptive systems. These reversed the structure of pre-existing proscriptive systems into sequences of known steps that should be taken in order to achieve adequate results. Prescriptive systems complemented rather than replaced proscriptive ones, thereby creating an uncertain mixture of orthodoxy and orthopraxy that failed to provide design guidance for improving design performance and quality.The second stage in the development of design analysis focuses on descriptive methods and techniques for analyzing and supporting evaluation. Technologies such as simulation and scientific visualization are employed so as to produce detailed, accurate and reliable projections of building behaviour and performance. These projections can be correlated into a comprehensive and coherent description of a building using representations of form as information carriers. In these representations feedback and interaction assume a visual character that fits both design attitudes and lay perception of the built environment, but on the basis of a quantitative background that justifies, verifies and refines design actions. Descriptive analysis is currently the most promising direction for confronting and resolving design complexity. It provides the designer with useful insights into the causes and effects of various design problems but frequently comes short of providing clear design guidance for two main reasons: (1) it adds substantial amounts of information to the already unmanageable loads the designer must handle, and (2) it may provide incoherent cues for the further development of a design. Consequently the descriptive approach to analysis is always in danger of been supplanted by abstract decision making.One way of providing the desired design guidance is to complement the connection of descriptive analyses to representations of form (and from there to synthesis) with two interface components. The first is a memory component, implemented as case-bases of precedent designs. These designs encapsulate integrated design information that can be matched to the design in hand in terms of form, function and performance. Comparison between precedents with a known performance and a new design facilitate identification of design aspects that need be improved, as well as of wider formal and functional consequences. The second component is an adaptive generative system capable of guiding exploration of these aspects, both in the precedents and the new design. The aim of this system is to provide feedback from analysis to synthesis. By exploring the scope of the analysis and the applicability of the conclusions to more designs, the designer generates a coherent and consistent collection of partial solutions that explore a relevant solution space. Development of the first component, the design case-bases, is no trivial task. Transformability in the representation of cases and flexible classification in a database are critical to the identification and treatment of a design aspect. Nevertheless, the state of the art in case-based reasoning and the extensive corpus of analysed designs provide the essential building blocks. The second component, the adaptive generative system, poses more questions. Existing generative techniques do not possess the necessary richness or multidimensionality. Moreover, it is imperative that the designer plays a more active role in the control of the process than merely tweaking local variables. At the same time, the system should prevent that redesigning degenerates into a blind trial-and-error enumeration of possibilities. Guided empirical design research arguably provides the means for the evolutionary development of the second component.
series AVOCAAD
email a.koutamanis@bk.tudelft.nl
last changed 2005/09/09 08:48

_id bba7
authors Alexander, Christopher W.
year 1964
title Notes on the Synthesis of Form
source Harvard Graduate School of Design
summary Every design problem begins with an effort to achieve fitness between two entities: the form in question and its context. The form is the solution to the problem; the context defines the problem. We want to put the context and the form into effortless contact or frictionless coexistence, i.e., we want to find a good fit. For a good fit to occur in practice, one vital condition must be satisfied. It must have time to happen. In slow-changing, traditional, unselfconscious cultures, a form is adjusted soon after each slight misfit occurs. If there was good fit at some stage in the past, no matter how removed, it will have persisted, because there is an active stability at work. Tradition and taboo dampen and control the rate of change in an unselfconscious culture's designs. It is important to understand that the individual person in an unselfconscious culture needs no creative strength. He does not need to be able to improve the form, only to make some sort of change when he notices a failure. The changes may not always be for the better; but it is not necessary that they should be, since the operation of the process allows only the improvements to persist. Unselfconscious design is a process of slow adaptation and error reduction. In the unselfconscious process there is no possibility of misconstruing the situation. Nobody makes a picture of the context, so the picture cannot be wrong. But the modern, selfconscious designer works entirely from a picture in his mind - a conceptualization of the forces at work and their interrelationships - and this picture is almost always wrong. To achieve in a few hours at the drawing board what once took centuries of adaptation and development, to invent a form suddenly which clearly fits its context - the extent of invention necessary is beyond the individual designer. A designer who sets out to achieve an adaptive good fit in a single leap is not unlike the child who shakes his glass-topped puzzle fretfully, expecting at one shake to arrange the bits inside correctly. The designer's attempt is hardly as random as the child's is; but the difficulties are the same. His chances of success are small because the number of factors which must fall simultaneously into place is so enormous. The process of design, even when it has become selfconscious, remains a process of error-reduction. No complex system will succeed in adapting in a reasonable amount of time or effort unless the adaptation can proceed component by component, each component relatively independent of the others. The search for the right components, and the right way to build the form up from these components, is the greatest challenge faced by the modern, selfconscious designer. The culmination of the modern designer's task is to make every unit of design both a component and a system. As a component it will fit into the hierarchy of larger components that are above it; as a system it will specify the hierarchy of smaller components of which it itself is made.
series thesis:PhD
email services@patternlanguage.com
last changed 2003/02/12 21:37

_id 86dc
authors Aouad, G., and Price, A.D.F.
year 1993
title An integrated system to aid the planning of concrete structures: introducing the system
source The Int. Journal of Construction IT1(2), pp.1-14
summary This paper reports on the development at Loughborough University of a CAD-based integrated model to aid the planning of in-situ concrete structures. The system development started after a review of the planning models currently available and after a detailed questionnaire survey undertaken amongst the top UK and US contractors on the current status of planning techniques and information technology. The main aim of this system is to automate the planning process of in-situ concrete structures using data generated by CAD systems. So far, the integration of a CAD system (AutoCAD 10) and a computerized scheduling system (Artemis 2000) has been achieved on a typical IBM-PC. This enables the generation of network plans using AutoCAD which are then automatically transferred to the Artemis system for time and cost analyses.Traditionally, construction planners are faced with many conventional drawings and documents which are used to re-extract information relevant to their planning processes. Such an approach can be very inefficient as it involves data double-handling and is often error prone. In addition, current computerized construction planning applications are little more than the automation of manual formulations of plans. For example, data are fed into the planning system and computations are performed using either CPM (Critical Path Method) or PERT (Programme Evaluation and Review Technique). However, data relating to the planning process such as activity lists, resources requirements and durations are not automatically generated within the system. It would thus seem logical to devise a CAD-based integrated planning model which accepts data in its electronic format and involves some integration of the traditional planning approach. This paper introduces the proposed CAD-based integrated planning model and describes its different components. In addition, it discusses the system functional specifications and summarizes the main benefits and limitations of such a model.
series journal paper
last changed 2003/05/15 19:45

_id 5236
authors Arciszewski, T., Michalski, R.S. and Dybala, T.
year 1995
title STAR methodology-based learning about construction accidents and their prevention
source Automation in Construction 4 (1) (1995) pp. 75-85
summary This paper presents the results of a feasibility study concerning the application of STAR-methodology-basedmachine learning to construction accidents and their prevention. A ten-stage knowledge acquisition process is presented and its individual stages described. Knowledge about construction accidents was acquired using a collection of 225 examples, based on actual accidents records. Inductive learning with a system based on the STAR-methodology was employed. This system was used in both the generalization and specialization modes of operation. The decision rules obtained are complex, but their interpretation is clear and they seem to be consistent with the present understanding of causal relationships between accident results and various factors affecting them. Also, the rules were verified using average overall and omission empirical error rates, which were calculated as average for three randomly determined sequences of examples. These error rates were calculated for all seven steps in the machine learning process, and were used to construct learning curves for both error rates. The relationships between error rates and the number of examples used for learning are analyzed, and coefficients of linear regression given and discussed. The 225 examples used were found to be grossly insufficient to produce reliable knowledge about accidents and therefore a large study is postulated which would involve the collection of a larger number of construction accident records. In general, our study demonstrated the feasibility of machine learning in acquiring knowledge about construction accidents.
keywords Construction accidents and their prevention; Knowledge acquisition; Machine learning; Multi-stepmachine learning process
series journal paper
more http://www.elsevier.com/locate/autcon
last changed 2003/06/02 07:31

_id ijac201917103
id ijac201917103
authors Bejarano, Andres; and Christoph Hoffmann
year 2019
title A generalized framework for designing topological interlocking configurations
source International Journal of Architectural Computing vol. 17 - no. 1, 53-73
summary A topological interlocking configuration is an arrangement of pieces shaped in such a way that the motion of any piece is blocked by its neighbors. A variety of interlocking configurations have been proposed for convex pieces that are arranged in a planar space. Published algorithms for creating a topological interlocking configuration start from a tessellation of the plane (e.g. squares colored as a checkerboard). For each square S of one color, a plane P through each edge E is considered, tilted by a given angle ? against the tessellated plane. This induces a face F supported by P and limited by other such planes nearby. Note that E is interior to the face. By adjacency, the squares of the other color have similarly delimiting faces. This algorithm generates a topological interlocking configuration of tetrahedra or antiprisms. When checked for correctness (i.e. for no overlap), it rests on the tessellation to be of squares. If the tessellation consists of rectangles, then the algorithm fails. If the tessellation is irregular, then the tilting angle is not uniform for each edge and must be determined, in the worst case, by trial and error. In this article, we propose a method for generating topological interlocking configurations in one single iteration over the tessellation or mesh using a height value and a center point type for each tile as parameters. The required angles are a function of the given height and selected center; therefore, angle choices are not required as an initial input. The configurations generated using our method are compared against the configurations generated using the angle-choice approach. The results show that the proposed method maintains the alignment of the pieces and preserves the co-planarity of the equatorial sections of the pieces. Furthermore, the proposed method opens a path of geometric analysis for topological interlocking configurations based on non-planar tessellations.
keywords Topological interlocking, surface tessellation, irregular geometry, parametric design, convex assembly
series journal
email andresbeja87@outlook.com
last changed 2019/08/07 12:04

_id a726
authors Belblidia, S. and Perrin, J.P.
year 1997
title Level-of-Detail Visualization of Architectural Models
source CAAD Futures 1997 [Conference Proceedings / ISBN 0-7923-4726-9] München (Germany), 4-6 August 1997, pp. 831-836
summary The work presented in this paper aims to use level-of-detail representation in realizing interactive walkthroughs or ignoring useless details in large architectural models. In order to choose the right representation of a model, we have to evaluate the error committed when using a simplified version instead of the full description of an object. This error depends on the object deformation during the simplification process but also on the importance of this object in the current viewing conditions. This "visible" error is used with different visualization strategies to find the model representation which satisfies either a quality criterion or a cost condition.
series CAAD Futures
email belblid@crai.archi.fr
last changed 2003/11/21 14:16

_id 5a82
authors Bouvet, D., Froumentin, M. and Garcia, G.
year 2001
title A real-time localization system for compactors
source Automation in Construction 10 (4) (2001) pp. 417-428
summary An operator-aiding system for compactors must incorporate a localization system. In this paper, we consider real-time kinematic (RTK) GPS and we present the solutions we have developed to maintain the positioning error lower than 0.2 m even during the satellite (limited) masking phases. By combining gyro, steering angle and speed measurements, we show that it is possible to obtain satisfying performances in dead-reckoning navigation with a low-cost internal sensor set. A forward–backward Kalman filter is proposed to deal with particularly long maskings, which typically occur when the machine works under bridges. Results of experiments carried out with an instrumented machine are presented to validate the proposed solutions.
series journal paper
more http://www.elsevier.com/locate/autcon
last changed 2003/05/15 19:22

_id ddss9809
id ddss9809
authors Brondino, Nair Cristina Margarido and Da Silva, Antônio Nélson Rodrigues
year 1998
title A comparison of land valuation methods supported by GIS
source Timmermans, Harry (Ed.), Fourth Design and Decision Support Systems in Architecture and Urban Planning Maastricht, the Netherlands), ISBN 90-6814-081-7, July 26-29, 1998
summary The purpose of this work was to study three different strategies for the appraisal of urban land. The first, a theoretical strategy created by the authors of this study to reproduce the common conditions of Brazilian cities, uses increments and reductions in the value of a square meter of land according to each lot’s individual features. The second method, based on Multiple Regression techniques, is widely used for valuation purposes. Finally, the effectiveness of Artificial Neural Networks to deal with thiskind of problem is studied. A sample of 157 lots was collected from several neighbourhoods of a small Brazilian city for the case study. The lot features recorded were area, width, shape, distance to the downtown district of the city through the street network, existence of fences and paved sidewalks, and market price. Prediction errors have been estimated for each of the three methods in order to compare their results. Predicted and error values, added to Geographical Information Systems, may be used to build thematic maps and to check how each strategy applies to different areas of the city. The analyses of error values conducted in this study showed that Artificial Neural Networks presented the best performance as a land appraisal method for the case studied.
series DDSS
email anelson@sc.usp.br
last changed 2003/11/21 14:16

_id 4202
authors Brown, Michael E. and Gallimore, Jennie J.
year 1995
title Visualization of Three-Dimensional Structure During Computer-Aided Design
source International Journal of Human-Computer Interaction 1995 v.7 n.1 pp. 37-56
summary The visual image presented to an engineer using a computer-aided design (CAD) system influences design activities such as decision making, problem solving, cognizance of complex relationships, and error correction. Because of the three-dimensional (3-D) nature of the object being created, an important attribute of the CAD visual interface concerns the various methods of presenting depth on the display's two-dimensional (2-D) surface. The objective of this research is to examine the effects of stereopsis on subjects' ability to (a) accurately transfer to, and retrieve from, long-term memory spatial information about 3-D objects; and (b) visualize spatial characteristics in a quick and direct manner. Subjects were instructed to memorize the shape of a 3-D object presented on a stereoscopic CRT during a study period. Following the study period, a series of static trial stimuli were shown. Each trial stimulus was rotated (relative to the original) about the vertical axis in one of six 36° increments between 0° and 180°. In each trial, the subject's task was to determine, as quickly and as accurately as possible, whether the trial object was the same shape as the memorized object or its mirrored image. One of the two cases was always true. To assess the relative merits associated with disparity and interposition, the two depth cues were manipulated in a within-subject manner during the study period and during the trials that followed. Subject response time and error rate were evaluated. Improved performance due to hidden surface is the most convincing experimental finding. Interposition is a powerful cue to object structure and should not be limited to late stages of design. The study also found a significant, albeit limited, effect of stereopsis. Under specific study object conditions, adding disparity to monocular trial objects significantly decreased response time. Response latency was also decreased by adding disparity information to stimuli in the study session.
series journal paper
last changed 2003/05/15 19:45

_id 0f34
authors Brown, P.J.
year 1983
title Error Messages : The Neglected Area of the Man / Machine Interface?
source communications of the ACMò. April, 1983. vol. 26: pp. 246-249. includes bibliography
summary The quality of error messages produced by software used in the field was tested by a simple experiment; it was found to be far from adequate. The results of the experiment are analyzed, and some responses which tend to corroborate the original findings are discussed. Finally some suggestions are made for improving the quality of error messages
keywords reliability, user interface, software, management
series CADline
last changed 2003/06/02 11:58

_id 89e4
authors Cendes, Z.J., Shenton, D. and H. Shahnasser
year 1982
title Adaptive Finite Element Mesh Generation Using the Delaunay Algorithm
source 3 p. : ill. Pittsburgh: Design Research Center, CMU, December, 1982
summary Includes bibliography. A two-dimensional generator is described which automatically creates optimal finite element meshes using the Delaunay triangulation algorithm. The mesh generator is adaptive in the sense that elements containing the largest normalized errors are automatically refined, providing meshes with a uniform error density. The system runs on a PERQ computer made by Three Rivers Computer Company. It is menu oriented and utilizes multiple command and display windows to create and edit the object description interactively. Mesh generation from the object data base is automatic, although it may be modified interactively by the user if desired. Application of the mesh generator to electric machine design and to magnetic bubble simulation shows it to be one of the most powerful and easy to use systems yet devised
keywords electrical engineering, triangulation, algorithms, OOPS, finite elements, analysis
series CADline
last changed 2003/06/02 11:58

_id caadria2019_452
id caadria2019_452
authors Choi, Minkyu, Yi, Taeha, Kim, Meereh and Lee, Ji-Hyun
year 2019
title Land Price Prediction System Using Case-based Reasoning
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. 767-774
summary Real estate price prediction is very complex process. Big data and machine learning technology have been introduced in many research areas, and they are also making such an attempt in the real estate market. Although real estate price forecasting studies is actively conducted, using support vector machine, machine learning algorithm, AHP method, and so on, validity and accuracy are still not reliable.In this research, we propose a Case-Based Reasoning system using regression analysis to allocate weight of attributes. This proposed system can support to predict the real estate price based on collecting public data and easily update the knowledge about real estate. Since the result shows error rate less than 30% through the experiment, this algorithm gives better performance than previous one. By this research, it is possible for help decision-makers to expect the real estate price of interested area.
keywords Artificial intelligence; Case-based reasoning; Land price prediction; Regression
series CAADRIA
email cmk0310@kaist.ac.kr
last changed 2019/04/16 08:25

_id ga9907
id ga9907
authors Ciao, Quinsan
year 1999
title Breeds of Artificial Design: Design Thinking in Computing Creation
source International Conference on Generative Art
summary There are many different paradigms or breeds of artificial design schemes. They each address artificial design from a different perspective. For instance, design by optimization emphasizes the iterative "trial-and-error" process of alternating generation and evaluation. Design by argumentation addresses the need of objectifying and communicating design thinking. Design by rues attempts to summary design knowledge into recipes. Design by simulation and electronic media offers a forum for design trial evaluation. Case-based design emphasizes experience-based design thinking. Fuzzy reasoning system provides a computing media to model and execute design reasoning. Although different, all of these paradigms are related and complement each other. Unification or collaboration of these different paradigms may lie ahead of future research and practice of artificial design.
series other
more http://www.generativeart.com/
last changed 2003/08/07 15:25

_id 9999
authors Coxe, W., Hartung, N.F., Hochberg, H.H., Lewis, B.J., Maister, D.H., Mattox, R.F. and Piven, P.A.
year 1987
title Success Strategies for Design Professionals
source New York, McGraw-Hill
summary As consultants with the opportunity to analyze literally hundreds of professional design firms, we have found the search for ideal management methods challenging. Each time we've observed a format that appears to work well for some or many firms, an exception has soon appeared, contradicting what looked like a good rule to follow. For example, some firms do outstanding work organized as project teams, others are very successful with a departmentalized project structure, and still others get good results with a studio format. One of the major puzzles for observers has been finding a relation between the project delivery system used by firms (that is, "how we do our work") and how the organization itself is operated (that is, "how we structure and run the firm"). After years of study and trial and error, a model has begun to emerge that holds promise for creating some order among these issues. At the heart of this model is the recognition that although no one strategy fits all firms, there is a family of understandable principles from which almost any firm of design professionals can devise its own best strategy. We call these the SuperPositioning principles. This book sets forth the theory, a set of master strategies derived from it, and some thoughts on how to put the principles to use. We look forward to further learning in the years ahead from the experience of professionals who apply the principles in their own firms.
series other
last changed 2003/04/23 13:14

_id caadria2016_415
id caadria2016_415
authors Crolla, Kristof and Adam Fingrut
year 2016
title Protocol of Error: The design and construction of a bending-active gridshell from natural bamboo
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. 415-424
summary This paper advocates alternative methods to overcome the impossibility of realising ‘perfect’ digital designs. It discusses Hong Kong’s 2015 ‘ZCB Bamboo Pavilion’ as a methodological case study for the design and construction of architecture from unprocessed natu- ral bamboo. The paper critically evaluates protocols set up to deal with errors resulting from precise digital design systems merging with inconsistent natural resources and onsite craftsmanship. The paper starts with the geometric and tectonic description of the project, illus- trating a complex and restrictive construction context. Bamboo’s unique growth pattern, structural build-up and suitability as a bending- active material are discussed and Cantonese bamboo scaffolding craftsmanship is addressed as a starting point for the project. The pa- per covers protocols, construction drawings and assembly methods developed to allow for the incorporation and of large building toler- ances and dimensional variation of bamboo. The final as-built 3d scanned structure is compared with the original digital model. The pa- per concludes by discussing the necessity of computational architec- tural design to proactively operate within a field of real-world inde- terminacy, to focus on the development of protocols that deal with imperfections, and to redirect design from the virtual world towards the latent opportunities of the physical.
keywords Bamboo; bending-active gridshells; physics simulation; form-finding; indeterminacy
series CAADRIA
email kristof.crolla@cuhk.edu.hk
last changed 2016/03/11 09:21

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