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	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 13:58

_id	452c
authors	Vanier, D. J. and Worling, Jamie
year	1986
title	Three-dimensional Visualization: A Case Study
source	Computer-Aided Architectural Design Futures [CAAD Futures Conference Proceedings / ISBN 0-408-05300-3] Delft (The Netherlands), 18-19 September 1985, pp. 92-102
summary	Three-dimensional computer visualization has intrigued both building designers and computer scientists for decades. Research and conference papers present an extensive list of existing and potential uses for threedimensional geometric data for the building industry (Baer et al., 1979). Early studies on visualization include urban planning (Rogers, 1980), treeshading simulation (Schiler and Greenberg, 1980), sun studies (Anon, 1984), finite element analysis (Proulx, 1983), and facade texture rendering (Nizzolese, 1980). With the advent of better interfaces, faster computer processing speeds and better application packages, there had been interest on the part of both researchers and practitioners in three-dimensional -models for energy analysis (Pittman and Greenberg, 1980), modelling with transparencies (Hebert, 1982), super-realistic rendering (Greenberg, 1984), visual impact (Bridges, 1983), interference clash checking (Trickett, 1980), and complex object visualization (Haward, 1984). The Division of Building Research is currently investigating the application of geometric modelling in the building delivery process using sophisticated software (Evans, 1985). The first stage of the project (Vanier, 1985), a feasibility study, deals with the aesthetics of the mode. It identifies two significant requirements for geometric modelling systems: the need for a comprehensive data structure and the requirement for realistic accuracies and tolerances. This chapter presents the results of the second phase of this geometric modelling project, which is the construction of 'working' and 'presentation' models for a building.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	0e95
authors	Wake, Warren K.
year	1982
title	Digital Anaglyph Stereoscopic Color Image Production
source	March, 1982. [5] p. includes bibliography
summary	Digital synthesis of color three-dimensional images is demonstrated to be fully feasible using conventional color raster technology. Demonstrated is the ability to present full-color information in synthesized three dimensional views, when viewed through red-cyan filtering glasses, using a single standard color monitor, and a 512 x 512 x 8 frame buffer. Imbedded into a special version of the Lab's CMU-PAINT system, the system provides, through a graphic menu driven user-interface, the ability to interactively compose a palette of colors, and subsequently draw and fill using these colors. Additionally, the user may interactively set display parameters calling for the left, right, or NORMAL modes, which will cause the display to draw in the red or cyan components of the selected color, respectively, for the left and right modes, or in the selected color for the NORMAL mode. When the red or cyan components are written over each other, the overlapping area appears in the sum of the two components, that being the color from which the components are derived. When line files describing a left and right eye view of a given object are displayed in the appropriate modes, and the resultant image is viewed using red-cyan glasses, a fully three-dimensional image is perceived in normal full color
keywords	computer graphics, color, stereoscopic
series	CADline
last changed	2003/06/02 13:58

_id	6094
authors	Blinn, J.I.
year	1982
title	A Generalization of Algebraic Surface Drawing
source	ACM Transaction on Graphics, vol. 1, no. 3, pp. 235-256, 1982
summary	The technology of creating realistic and visually interesting images of three- dimensional shapes is advancing on many fronts. One such front is the develop- ment of algorithms for drawing curved surfaces directly from their mathematical definitions rather than by dividing them into large numbers of polygons. Two classes of surfaces which have received attention are the quadric and the bivariate parametric surfaces. Bivariate parametric surfaces are generated by three func- tions of two variables (most popularly polynomials), as the variables take on different values. Algorithms dealing with such surfaces are due to Catmull; Lane, Carpenter, Whitted and Blinn; and Clark.
series	journal paper
last changed	2003/11/21 15:16

_id	56de
authors	Handa, M., Hasegawa, Y., Matsuda, H., Tamaki, K., Kojima, S., Matsueda, K., Takakuwa, T. and Onoda, T.
year	1996
title	Development of interior finishing unit assembly system with robot: WASCOR IV research project report
source	Automation in Construction 5 (1) (1996) pp. 31-38
summary	The WASCOR (WASeda Construction Robot) research project was organized in 1982 by Waseda University, Tokyo, Japan, aiming at automatizing building construction with a robot. This project is collaborated by nine general contractors and a construction machinery manufacturer. The WASCOR research project has been divided into four phases with the development of the study and called WASCOR I, II, III, and IV respectively. WASCOR I, II, and III finished during the time from 1982 to 1992 in a row with having 3-4 years for each phase, and WASCOR IV has been continued since 1993. WASCOR IV has been working on a automatized building interior finishing system. This system consists of following three parts. (1) Development of building system and construction method for automated interior finishing system. (2) Design of hardware system applied to automated interior finishing system. (3) Design of information management system in automated construction. As the research project has been developing, this paper describes the interim report of (1) Development of building system and construction method for automated interior finishing system, and (2) Design of hardware system applied to automated interior finishing system.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	fafa
authors	Marr, David
year	1982
title	Vision: A Computational Investigation into the Human Representation and Processing of Visual Information
source	New York, NY: W.H. Freeman and Company
summary	Marr's demonstrations that retinal receptive field geometry could be derived by Fourier transformation of spatial frequency sensitivity data, that edges and contours could be detected by finding zero crossings in the light gradient by taking the Laplacian or second directional derivative, that excitatory and inhibitory receptive fields could be constructed from "DOG" functions (the difference of two Gaussians), and that the visual system used a two-dimensional convolution integral with a Gaussian prefilter as an operator for bandwidth optimation on the retinal light distribution, were more powerful than anything that had been seen up to that time. It was as if vision research suddenly acquired its own Principia Mathematica, or perhaps General Relativity Theory, in terms of the new explanatory power Marr's theories provided. Truly an extraordinary book from an extraordinary thinker in the area of perception, vision, and the brain.
series	other
last changed	2003/04/23 15:14

_id	233c
authors	Udupa, Jayaram K., Srihari, Sargur N. and Herman, Gabor T.
year	1982
title	Boundary Detection in Multidimensions
source	IEEE Transactions on Pattern Analysis and Machine Intelligence. January, 1982. vol. PAM-4: pp. 41-50 : ill. includes bibliography
summary	The development of image processing algorithms for time varying imagery and computerized tomography data calls for generalization of the concepts of adjacency, connectivity, boundary, etc. to three and four dimensional discrete spaces. This paper defines these basic concepts in unified terminology and presents algorithms for a boundary detection task in multidimensional space. The performance of these algorithms is discussed with respect to theoretical maximum complexity, and is illustrated with simulated computerized tomography data
keywords	algorithms, image processing, performance, applications
series	CADline
last changed	2003/06/02 13:58

_id	0107
authors	Akin, Omer and Weinel, Eleanor F. (editors)
year	1982
title	Representation and Architecture
source	v, 285 p. : ill. Silver Spring, Maryland: Information Dynamics, Inc., 1982
summary	A collection of papers developed from the proceeding of the Northeastern Regional meeting of the Association of Collegiate Schools of Architecture (ACSA), held at the Department of Architecture, Carnegie Mellon University. The introduction includes articles about representation, representation and architecture. Part 1, Who/To Whom speaks about representation and participatory design process, and of a system for recording behavior and occupying of design. Part 2, How: includes Figure, System and Memory, the Process of Design ; Representation and Creativity in Architecture and Miniature Substitutes. Part 3, With What :Information and Data Base in Design : the Computer as a Design Medium, Slides Talk and Translation
keywords	design process, representation, architecture, creativity
series	CADline
email
last changed	2003/05/17 10:09

_id	843d
authors	Avron, Barr and Feigenbaum, Edward A. (editors)
year	1982
title	The Handbook of Artificial Intelligence
source	xiii, 428 p. Stanford, California: Heuristech Press, 1982. vol. 2 of 3: Includes bibliography p.383-402 and indexes
summary	Part 2 of a three vol. work. This vol covers: AI programming languages, the kinds of programming languages suitable for AI, features and environments developed that were developed for its purpose. Expert systems in science, medicine and education. The last chapters reviews automatic programming
keywords	AI, programming, languages, expert systems, automation
series	CADline
last changed	2003/06/02 13:58

_id	a426
authors	Barsky, Brian A. and Greenberg, Donald P.
year	1982
title	Interactive Surface Representation System Using a B-spline Formulation with Interpolation Capability
source	computer Aided Design. July, 1982. vol. 14: pp. 187-194 : col.ill. includes bibliography
summary	An interactive surface representation system is described which uses a parametric uniform bicubic B-spline formulation which can describe a surface initially defined to interpolate a specified network of points
keywords	CAD, curved surfaces, computational geometry, interpolation, B-splines
series	CADline
last changed	2003/06/02 13:58

_id	898a
authors	Bay, J.H.
year	2002
title	Cognitive Biases and Precedent Knowledge in Human and Computer-Aided Design Thinking
doi	https://doi.org/10.52842/conf.caadria.2002.213
source	CAADRIA 2002 [Proceedings of the 7th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 983-2473-42-X] Cyberjaya (Malaysia) 18–20 April 2002, pp. 213-220
summary	Cognitive biases (illusions) and potential errors can occur when using precedent knowledge for analogical, pre-parametric and qualitative design thinking. This paper refers largely to part of a completed research (Bay 2001) on how heuristic biases, discussed by Tversky and Kahneman (1982) in cognitive psychology, can affect judgement and learning of facts from precedents in architectural design, made explicit using a kernel of conceptual system (Tzonis et. al., 1978) and a framework of architectural representation (Tzonis 1992). These are used here to consider how such illusions and errors may be transferred to computer aided design thinking.
series	CAADRIA
email
last changed	2022/06/07 07:54

_id	1b10
id	1b10
authors	Bay, Joo-Hwa
year	2001
title	Cognitive Biases - The case of tropical architecture
source	Delft University of Technology
summary	This dissertation investigates, i) How cognitive biases (or illusions) may lead to errors in design thinking, ii) Why architects use architectural precedents as heuristics despite such possible errors, and iii) Develops a design tool that can overcome this type of errors through the introduction of a rebuttal mechanism. The mechanism controls biases and improves accuracy in architectural thinking. // The research method applied is interdisciplinary. It employs knowledge from cognitive science, environmental engineering, and architectural theory. The case study approach is also used. The investigation is made in the case of tropical architecture. The investigation of architectural biases draws from work by A. Tversky and D. Kahneman in 1982 on “Heuristics and biases”. According to Tversky and Kahneman, the use of heuristics of representativeness (based on similarity) and availability (based on ease of recall and imaginability) for judgement of probability can result in cognitive biases of illusions of validity and biases due to imaginability respectively. This theory can be used analogically to understand how errors arise in the judgement of environmental behaviour anticipated from various spatial configurations, leading to designs with dysfunctional performances when built. Incomplete information, limited time, and human mental resources make design thinking in practice difficult and impossible to solve. It is not possible to analyse all possible alternative solutions, multiple contingencies, and multiple conflicting demands, as doing so will lead to combinatorial explosion. One of the ways to cope with the difficult design problem is to use precedents as heuristic devices, as shortcuts in design thinking, and at the risk of errors. This is done with analogical, pre-parametric, and qualitative means of thinking, without quantitative calculations. Heuristics can be efficient and reasonably effective, but may not always be good enough or even correct, because they can have associated cognitive biases that lead to errors. Several debiasing strategies are discussed, and one possibility is to introduce a rebuttal mechanism to refocus the designer’s thinking on the negative and opposite outcomes in his judgements, in order to debias these illusions. The research is carried out within the framework of design theory developed by the Design Knowledge System Research Centre, TUDelft. This strategy is tested with an experiment. The results show that the introduction of a rebuttal mechanism can debias and improve design judgements substantially in environmental control. The tool developed has possible applications in design practice and education, and in particular, in the designing of sustainable environments.
keywords	Design bias; Design knowledge; Design rebuttal; Design Precedent; Pre-parametric design; Tropical architecture; Sustainability
series	thesis:PhD
type	normal paper
email
last changed	2006/05/28 07:42

_id	cc3e
authors	Bloom, Gregory L.
year	1982
title	Solving Architectural and Engineering Problems with CADD: Some Guidelines in Choosing the Right System
source	computer Graphics News. September/October 1982. [3] p
summary	To be useful, a CAD system intended for architectural engineering work must have a number of characteristics in addition to appropriate hardware or software. The article discusses some of these guidelines
keywords	CAD, engineering, architecture, practice
series	CADline
last changed	2003/06/02 13:58

_id	09f3
authors	Burt, Michael, Kent, Eli and Ne'eman, Eliyahu (et al)
year	1982
title	Single- and Multilayer Large-Span Membrane Structures for Daylight, Energy Control, and Savings
source	1982? PP. 177-183 : ill. includes bibliography
summary	This paper examines membrane-covered structures. Such structures offer many advantages and their cost of construction is lower than that of equivalent alternatives. However, these thin, single-layer membrane covers cannot provide the control of daylight and heat required to make them environmentally satisfactory and energy-efficient. To improve the performance of membrane covers, a new solution has been studied. Double-layer membranes can be built without severe technical difficulties and provide a much higher degree of static and dynamic control. Further work is being carried out to study the option of incorporating into the two layer membrane structures solar collectors between the layers, thus converting the large area of the membrane cover into an active solar system
keywords	lighting, energy, analysis, topology, structures, building
series	CADline
last changed	2003/06/02 10:24

_id	b47b
authors	Callender, John Hancock (Ed.)
year	1982
title	Time Saver Standards for Architectural Design Data
source	McGraw Hill Book. Co., Sixth Ed.
summary	From Book News, Inc. The latest version of the venerable reference first published in 1946 and most recently in 1982. Considers such aspects as bioclimate design, life-cycle costing, the building shell, architectural ethics, superstructure, acoustics, construction materials technology, daylighting, environmentally responsible design, and evaluating building performance. A special section features design data formatted according to the Uniformat II classification system, offering easy access to preliminary design and specification by building component, assemble, and place in the system of construction. Useful for any professional in the architecture, design, or construction fields. Book News, Inc.(r), Portland. Book Description Our biggest database of ready-to-use architectural design details ever. A classic reference for over 50 years. Time-Saver Standards for Architectural Design Data, edited by Donald Watson, Michael J. Crosbie, and John Hancock Callender, is the all-in-one desktop database that helps you work faster and smarter with instant design details-ready to incorporate into your architectural drawings the moment you need them. Now in a completely revised and updated seventh edition, this time-saving resource...
series	other
last changed	2003/04/23 15:14

_id	adcd
authors	Cohen, Paol R. and Feigenbaum, Edward A. (editors)
year	1982
title	The Handbook of Artificial Intelligence
source	xviii, 639 p. Stanford, California: HeurisTech Press, 1982. vol. 3: See The Handbook of Artificial intelligence edited by Avron, Barr and Feigenbaum, Edward. Includes bibliography p. 565-586 and cumulative indexes
summary	Part of three volumes, this volume contains chapters on models of cognition, automatic deduction, vision, learning and planning
keywords	AI, deduction, learning, cognition, planning
series	CADline
last changed	2003/06/02 13:58

_id	sigradi2006_e183a
id	sigradi2006_e183a
authors	Costa Couceiro, Mauro
year	2006
title	La Arquitectura como Extensión Fenotípica Humana - Un Acercamiento Basado en Análisis Computacionales [Architecture as human phenotypic extension – An approach based on computational explorations]
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 56-60
summary	The study describes some of the aspects tackled within a current Ph.D. research where architectural applications of constructive, structural and organization processes existing in biological systems are considered. The present information processing capacity of computers and the specific software development have allowed creating a bridge between two holistic nature disciplines: architecture and biology. The crossover between those disciplines entails a methodological paradigm change towards a new one based on the dynamical aspects of forms and compositions. Recent studies about artificial-natural intelligence (Hawkins, 2004) and developmental-evolutionary biology (Maturana, 2004) have added fundamental knowledge about the role of the analogy in the creative process and the relationship between forms and functions. The dimensions and restrictions of the Evo-Devo concepts are analyzed, developed and tested by software that combines parametric geometries, L-systems (Lindenmayer, 1990), shape-grammars (Stiny and Gips, 1971) and evolutionary algorithms (Holland, 1975) as a way of testing new architectural solutions within computable environments. It is pondered Lamarck´s (1744-1829) and Weismann (1834-1914) theoretical approaches to evolution where can be found significant opposing views. Lamarck´s theory assumes that an individual effort towards a specific evolutionary goal can cause change to descendents. On the other hand, Weismann defended that the germ cells are not affected by anything the body learns or any ability it acquires during its life, and cannot pass this information on to the next generation; this is called the Weismann barrier. Lamarck’s widely rejected theory has recently found a new place in artificial and natural intelligence researches as a valid explanation to some aspects of the human knowledge evolution phenomena, that is, the deliberate change of paradigms in the intentional research of solutions. As well as the analogy between genetics and architecture (Estévez and Shu, 2000) is useful in order to understand and program emergent complexity phenomena (Hopfield, 1982) for architectural solutions, also the consideration of architecture as a product of a human extended phenotype can help us to understand better its cultural dimension.
keywords	evolutionary computation; genetic architectures; artificial/natural intelligence
series	SIGRADI
email
last changed	2016/03/10 09:49

_id	e7b8
authors	Dahl, Veronica
year	1983
title	Logic Programming as a Representation of Knowledge
source	IEEE Computer. IEEE Computer Society, October, 1983. vol. 16: pp. 106-110 : ill. includes bibliography
summary	Logic has traditionally provided a firm conceptual framework for representing knowledge. As it can formally deal with the notion of logical consequence, the introduction of Prolog has made it possible to represent knowledge in terms of logic and also to expect appropriate inferences to be drawn from it automatically. This article illustrates and explores these ideas with respect to two central representational issues: problem solving knowledge and database knowledge. The technical aspects of both subjects have been covered elsewhere (Kowalski, R. Logic for problem solving, North- Holland pub. 1979 ; Dahl, V. on database system development through logic ACM Trans.vol.7/no.3/Mar.1982 pp.102). This explanation uses simple, nontechnical terms
keywords	PROLOG, knowledge, representation, logic, programming, problem solving, database
series	CADline
last changed	1999/02/12 15:08

_id	ad2e
authors	Fix, George J. and Gunzburger, Max D.
year	1982
title	On Numerical Methods for Acoustic Problems
source	14 p. : ill. Pittsburgh: Design Research Center, CMU, April, 1982. include bibliography: p. 12
summary	Finite element methods are introduced for the approximate solution of periodic acoustic problems. A least squares technique is used for those problems which are governed by a first order system of partial differential equations while for second order equations, a Galerkin/multigrid technique is employed. In both cases, the solution process for the algebraic system resulting from discretization is iterative in character
keywords	acoustics, finite elements, mathematics
series	CADline
last changed	2003/06/02 10:24

_id	c7cd
authors	Foley, James D. and Van Dam, Andrias
year	1982
title	Fundamentals of Interactive Computer Graphics
source	xx, 664 p. [12] plates : ill. (some col.) Reading, Mass.: Addison Wesley Pub. Co., 1982. includes bibliography: p.625-653 and index. -- (System Programming Series)
summary	Presents different aspects of interactive computer graphics programming: hardware, software, data structures, mathematical manipulation of graphical objects, the development of a 3D geometrical transformations, and an implementation strategy for a subroutine package based on the core system
keywords	computer graphics, software, programming, theory, practice
series	CADline
last changed	2003/06/02 13:58

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