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	68c0
authors	Gero, John S. and Rosenman, Michael A.
year	1990
title	Design Decision Making Using Pareto-Optimal Dynamic Programming
source	Berlin: Springer- Verlag, 1990. pp. 376-396
summary	When designing using the systems approach, the given system is decomposed into a number of subsystems, and for each subsystem a set of feasible alternatives is selected by the designer. A building design example is presented in which it is demonstrated that sufficient relevant solutions are generated in one pass of the dynamic programming procedure to give a good approximation to the Pareto set, thus offering designers sufficient choice in making a final selection. The relevant information is displayed in an intelligent manner so that designers can either make a final decision or else perceive what extra information they require
keywords	optimization, decision making, design process, architecture, multicriteria, evaluation, decomposition, dynamic programming
series	CADline
email
last changed	2003/06/02 10:24

_id	831d
authors	Seebohm, Thomas
year	1992
title	Discoursing on Urban History Through Structured Typologies
source	Mission - Method - Madness [ACADIA Conference Proceedings / ISBN 1-880250-01-2] 1992, pp. 157-175
doi	https://doi.org/10.52842/conf.acadia.1992.157
summary	How can urban history be studied with the aid of three-dimensional computer modeling? One way is to model known cities at various times in history, using historical records as sources of data. While such studies greatly enhance the understanding of the form and structure of specific cities at specific points in time, it is questionable whether such studies actually provide a true understanding of history. It can be argued that they do not because such studies only show a record of one of many possible courses of action at various moments in time. To gain a true understanding of urban history one has to place oneself back in historical time to consider all of the possible courses of action which were open in the light of the then current situation of the city, to act upon a possible course of action and to view the consequences in the physical form of the city. Only such an understanding of urban history can transcend the memory of the actual and hence the behavior of the possible. Moreover, only such an understanding can overcome the limitations of historical relativism, which contends that historical fact is of value only in historical context, with the realization, due to Benedetto Croce and echoed by Rudolf Bultmann, that the horizon of "'deeper understanding" lies in "'the actuality of decision"' (Seebohm and van Pelt 1990). One cannot conduct such studies on real cities except, perhaps, as a point of departure at some specific point in time to provide an initial layout for a city knowing that future forms derived by the studies will diverge from that recorded in history. An entirely imaginary city is therefore chosen. Although the components of this city at the level of individual buildings are taken from known cities in history, this choice does not preclude alternative forms of the city. To some degree, building types are invariants and, as argued in the Appendix, so are the urban typologies into which they may be grouped. In this imaginary city students of urban history play the role of citizens or groups of citizens. As they defend their interests and make concessions, while interacting with each other in their respective roles, they determine the nature of the city as it evolves through the major periods of Western urban history in the form of threedimensional computer models. My colleague R.J. van Pelt and I presented this approach to the study of urban history previously at ACADIA (Seebohm and van Pelt 1990). Yet we did not pay sufficient attention to the manner in which such urban models should be structured and how the efforts of the participants should be coordinated. In the following sections I therefore review what the requirements are for three-dimensional modeling to support studies in urban history as outlined both from the viewpoint of file structure of the models and other viewpoints which have bearing on this structure. Three alternative software schemes of progressively increasing complexity are then discussed with regard to their ability to satisfy these requirements. This comparative study of software alternatives and their corresponding file structures justifies the present choice of structure in relation to the simpler and better known generic alternatives which do not have the necessary flexibility for structuring the urban model. Such flexibility means, of course, that in the first instance the modeling software is more timeconsuming to learn than a simple point and click package in accord with the now established axiom that ease of learning software tools is inversely related to the functional power of the tools. (Smith 1987).
series	ACADIA
email
last changed	2022/06/07 07:56

_id	411f
authors	Coyne, Richard D. and Postmus, A.G.
year	1990
title	Spatial Applications of Neural Networks in Computer-Aided Design
source	Artificial Intelligence in Engineering. 1990. vol. 5: pp. 9-22. CADLINE has abstract only
summary	Neural networks of PDP (parallel distributed processing), models of computation are based on mathematical models of neural processes. The authors explore the application of PDP to simple spatial reasoning in computer-aided design. Knowledge that provides a mapping from performances to design descriptions can be encoded into PDP systems in the form of learned patterns. The implementation of a simple PDP pattern associator is described. The system is shown to facilitate a rudimentary kind of associative or analogical reasoning. It also facilitates reasoning where only incomplete information is available. There are important concerns in design reasoning
keywords	CAD, neural networks, design, representation, knowledge, reasoning
series	CADline
email
last changed	2003/05/17 10:13

_id	8435
authors	Coyne, Richard D.
year	1990
title	Tools for Exploring Associative Reasoning in Design
source	The Electronic Design Studio: Architectural Knowledge and Media in the Computer Era [CAAD Futures ‘89 Conference Proceedings / ISBN 0-262-13254-0] Cambridge (Massachusetts / USA), 1989, pp. 91-106
summary	Two tools for storing and recalling information in computer systems are discussed and demonstrated in relation to design. The tools are hypermedia and neural networks. Each provides a valuable model for reasoning by the association of ideas.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	acadia06_496
id	acadia06_496
authors	Jemtrud, Michael
year	2006
title	Eucalyptus: User Controlled Lightpath Enabled Participatory Design Studio
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 496-509
doi	https://doi.org/10.52842/conf.acadia.2006.496
summary	A new notion of participation is at stake with advances in technologically mediated work environments. The digitally mediated e-design studio has been around since the mid-1990’s and has been employed in various forms in disciplines including architecture/engineering/construction (AEC), industrial design, and the automotive industry. Insufficient bandwidth and insufficiently powerful, crudely coordinated tools resulted in distributed task-based modes of collaboration that did not allow full participation by members of the distributed design team. At the very least, the present “second generation” network severely limits the applications, tools, and modes of communication that can be used in data and visualization intense design scenarios. The emergence of Service Oriented Architectures and User-Controlled LightPaths (“intelligent infrastructure”) herald the beginning of a new age where fully participatory multi-site design may become possible. The networks, visualization & communication tools, Service Oriented Architecture & Web Services, work protocols, and physical site designs of the Participatory Design Studio (PDS) being developed by the authors will constitute one of the first working examples of this future. This paper will briefly outline the “mise en scène” or staging of the technical configuration of the Eucalyptus project; observations and results from the creative activity of the PDS in the context of two case studies; and speculate on the implications for design activity, pedagogy, and a more robust mode of participation.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	2a8b
authors	Purcell, Patrick and Applebaum Dan
year	1990
title	Light Table: An Interface To Visual Information Systems
source	The Electronic Design Studio: Architectural Knowledge and Media in the Computer Era [CAAD Futures ‘89 Conference Proceedings / ISBN 0-262-13254-0] Cambridge (Massachusetts / USA), 1989, pp. 229-238
summary	A primary aim of the Light Table project was to see if a combination of the optical laser disc, local area networks, and interactive videographic workstation technology could bring a major visual collection, (such as the Rotch Visual Collections of the Massachusetts Institute of Technology), to a campuswide population of undergraduate users. VIS (Visual Information System) is the name being given to the new genre of information technology. Much research and development effort is currently being applied to areas where the image has a special significance, for example in architecture and planning, in graphic and fine arts, in biology, in medicine, and in photography. One particular advance in the technology of VIS has been the facility to access visual information across a distributed computer system via LAN (Local Area Networks) and video delivery systems, (such as campus TV cable). This advance allows users to retrieve images from both local and remote sources, dispatching the image search through the LAN, and receiving the images back at their workstation via dedicated channels on the campus TV cable. Light Table is the title of a system that acts as a computer-based interactive videographic interface to a variety of visual information systems described in the body of this paper. It takes its name from the traditional, back- lit, translucent light table that lecturers use to assemble and view collections of slides for talks and seminars. The component of Light Table which is being reported in greatest detail here, a software outcome called Galatea, is a versatile and robust system capable of controlling video devices in a networked environment.
series	CAAD Futures
last changed	1999/04/03 17:58

_id	a8d7
authors	Rapaport, William J.
year	1990
title	Predication, Fiction, and Artificial Intelligence
source	27 (21) p. : ill. May, 1990. 90-11. includes bibliography
summary	This paper describes the SNePS knowledge-representation and reasoning system. SNePS is an intentional, propositional, semantic-network processing system used for research in AI. The author looks at how predication is represented in such a system when it is used for cognitive modeling and natural- language understanding and generation. In particular, the author discusses issues in the representation of fictional entities and the representation of propositions from fiction, using SNePS. A brief survey is given of four philosophical ontological theories of fiction and sketch an epistemological theory of fiction (implemented in SNePS) using a story operator and rules allowing propositions to 'migrate' into and out of story 'spaces.'
keywords	knowledge, representation, systems, AI, semantic networks, cognition, natural languages, intentionallity
series	CADline
last changed	2003/06/02 13:58

_id	1c67
authors	Sanchez, S., Zulueta A., and Barrallo J.
year	1999
title	Bilbao: The Revitalisation of a City
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 694-699
doi	https://doi.org/10.52842/conf.ecaade.1999.694
summary	The city of Bilbao has suffered in the last decade a deep transformation. After a glorious industrial past, Bilbao was in 1990 a depressed city, and the strategies necessary to transform an industrial city into a service capital were no simple due to the high level of pollution and unemployment rate. The "Bilbao Metropoli-30" Association was created to coordinate the synergetic action of all the involved institutions: City Hall, Basque Country and Spanish Governments, financial institutions, transport companies, airport and port, etc. But it was also necessary the acceptance of the public opinion to recover the illusion and the lost pride of the city. The desolated social scene was not adequate for revolutionary designs like the winding Frank Gehry's Bilbao Guggenheim Museum, or the cavernous Norman Foster's underground. This work pretends to show the means and strategies, especially computational, that allowed the transformation of Bilbao with an enthusiastic citizen support.
keywords	Metropolitan Bilbao, City Revitalisation, Architectural Computer Simulation
series	eCAADe
email
last changed	2022/06/07 07:56

_id	450c
authors	Akin, Ömer
year	1990
title	Computational Design Instruction: Toward a Pedagogy
source	The Electronic Design Studio: Architectural Knowledge and Media in the Computer Era [CAAD Futures ‘89 Conference Proceedings / ISBN 0-262-13254-0] Cambridge (Massachusetts / USA), 1989, pp. 302-316
summary	The computer offers enormous potential both in and out of the classroom that is realized only in limited ways through the applications available to us today. In the early days of the computer it was generally argued that it would replace the architect. When this idea became obsolete, the prevailing opinion of proponents and opponents alike shifted to the notion of the computer as merely adding to present design capabilities. This idea is so ingrained in our thinking that we still speak of "aiding" design with computers. It is clear to those who grasp the real potential of this still new technology - as in the case of many other major technological innovations - that it continues to change the way we design, rather than to merely augment or replace human designers. In the classroom the computer has the potential to radically change three fundamental ingredients: student, instruction, and instructor. It is obvious that changes of this kind spell out a commensurate change in design pedagogy. If the computer is going to be more than a passive instrument in the design studio, then design pedagogy will have to be changed, fundamentally. While the practice of computing in the studio continues to be a significant I aspect of architectural education, articulation of viable pedagogy for use in the design studio is truly rare. In this paper the question of pedagogy in the CAD studio will be considered first. Then one particular design studio taught during Fall 1988 at Carnegie Mellon University will be presented. Finally, we shall return to issues of change in the student, instruction, and instructor, as highlighted by this particular experience.
series	CAAD Futures
email
last changed	2003/11/21 15:15

_id	eb5f
authors	Al-Sallal, Khaled A. and Degelman, Larry 0.
year	1994
title	A Hypermedia Model for Supporting Energy Design in Buildings
source	Reconnecting [ACADIA Conference Proceedings / ISBN 1-880250-03-9] Washington University (Saint Louis / USA) 1994, pp. 39-49
doi	https://doi.org/10.52842/conf.acadia.1994.039
summary	Several studies have discussed the limitations of the available CAAD tools and have proposed solutions [Brown and Novitski 1987, Brown 1990, Degelman and Kim 1988, Schuman et al 1988]. The lack of integration between the different tasks that these programs address and the design process is a major problem. Schuman et al [1988] argued that in architectural design many issues must be considered simultaneously before the synthesis of a final product can take place. Studies by Brown and Novitski [1987] and Brown [1990] discussed the difficulties involved with integrating technical considerations in the creative architectural process. One aspect of the problem is the neglect of technical factors during the initial phase of the design that, as the authors argued, results from changing the work environment and the laborious nature of the design process. Many of the current programs require the user to input a great deal of numerical values that are needed for the energy analysis. Although there are some programs that attempt to assist the user by setting default values, these programs distract the user with their extensive arrays of data. The appropriate design tool is the one that helps the user to easily view the principal components of the building design and specify their behaviors and interactions. Data abstraction and information parsimony are the key concepts in developing a successful design tool. Three different approaches for developing an appropriate CAAD tool were found in the literature. Although there are several similarities among them, each is unique in solving certain aspects of the problem. Brown and Novitski [1987] emphasize the learning factor of the tool as well as its highly graphical user interface. Degelman and Kim [1988] emphasize knowledge acquisition and the provision of simulation modules. The Windows and Daylighting Group of Lawrence Berkeley Laboratory (LBL) emphasizes the dynamic structuring of information, the intelligent linking of data, the integrity of the different issues of design and the design process, and the extensive use of images [Schuman et al 19881, these attributes incidentally define the word hypermedia. The LBL model, which uses hypermedia, seems to be the more promising direction for this type of research. However, there is still a need to establish a new model that integrates all aspects of the problem. The areas in which the present research departs from the LBL model can be listed as follows: it acknowledges the necessity of regarding the user as the center of the CAAD tool design, it develops a model that is based on one of the high level theories of human-computer interaction, and it develops a prototype tool that conforms to the model.
series	ACADIA
email
last changed	2022/06/07 07:54

_id	849b
authors	Amiel, Maurice
year	1991
title	NOTES ON IN-SITU – FULL-SCALE EXPERIMENTATION AND THE DESIGN PROFESSIONS
source	Proceedings of the 3rd European Full-Scale Modelling Conference / ISBN 91-7740044-5 / Lund (Sweden) 13-16 September 1990, pp. 40-43
summary	In the north american academic context a workshop is different from a paper session in that it is simply an opportunity to exchange ideas and to raise questions among colleagues who can bring to bear in their discussion various points of view and experiences otherwise unavailable.
keywords	Full-scale Modeling, Model Simulation, Real Environments
series	other
type	normal paper
more	http://info.tuwien.ac.at/efa
last changed	2004/05/04 15:18

_id	diss_anders
id	diss_anders
authors	Anders, P.
year	2003
title	A Procedural Model for Integrating Physical and Cyberspaces in Architecture
source	Doctoral dissertation, University of Plymouth, Plymouth, U.K
summary	This dissertation articulates opportunities offered by architectural computation, in particular the digital simulation of space known as virtual reality (VR) and its networked, social variant cyberspace. Research suggests that environments that hybridize technologies call for a conception of space as information, i.e. space is both a product of and tool for cognition. The thesis proposes a model whereby architecture can employ this concept of space in creating hybrids that integrate physical and cyberspaces.The dissertation presents important developments in architectural computation that disclose concepts and values that contrast with orthodox practice. Virtual reality and cyberspace, the foci of this inquiry, are seen to embody the more problematic aspects of these developments. They also raise a question of redundancy: If a simulation is good enough, do we still need to build? This question, raised early in the 1990's, is explored through a thought experiment - the Library Paradox - which is assessed and critiqued for its idealistic premises. Still, as technology matures and simulations become more realistic the challenge posed by VR/cyberspace to architecture only becomes more pressing. If the case for virtual idealism seems only to be strengthened by technological and cultural trends, it would seem that a virtual architecture should have been well established in the decade since its introduction.Yet a history of the virtual idealist argument discloses the many difficulties faced by virtual architects. These include differences between idealist and professional practitioners, the failure of technology to achieve its proponents' claims, and confusion over the meaning of virtual architecture among both architects and clients. However, the dissertation also cites the success of virtual architecture in other fields - Human Computer Interface design, digital games, and Computer Supported Collaborative Work - and notes that their adoption of space derives from practice within each discipline. It then proposes that the matter of VR/cyberspace be addressed from within the practice of architecture, a strategy meant to balance the theoretical/academic inclination of previous efforts in this field.The dissertation pursues an assessment that reveals latent, accepted virtualities in design methodologies, instrumentation, and the notations of architectural practices. Of special importance is a spatial database that now pervades the design and construction processes. The unity of this database, effectively a project's cyberspace, and its material counterpart is the subject of the remainder of the dissertation. Such compositions of physical and cyberspaces are herein called cybrids. The dissertation examines current technologies that cybridize architecture and information technology, and proposes their integration within cybrid wholes. The concept of cybrids is articulated in seven principles that are applied in a case study for the design for the Planetary Collegium. The project is presented and critiqued on the basis of these seven principles. The dissertation concludes with a discussion of possible effects of cybrids upon architecture and contemporary culture.
series	thesis:PhD
email
last changed	2005/09/09 12:58

_id	4d0d
authors	Angelil, Mark
year	1990
title	Experiments as Modus Operandi
source	Journal of Architectural Education. November, 1990. Vol. 44: pp. 37-48 : 9 p. of ill
summary	Architecture has for too long focused on the presentation of pristine objects and the presentation in drawing form. A critical understanding of the field, however, necessitates a reevaluation of the roles of the process involved in the production of building. Rather than emphasizing surface appearances, an architecture rooted in process aims ultimately at revealing the fundamental and deep structures inherent within the making of architecture. One of the primary tasks of the process is to provoke intuition and ingenuity - and the awareness that both are founded on knowledge - and that knowledge must be applied with imagination. The experiment presented here developed sequentially with a defined structure to the process of design, moving gradually from the abstract into the concrete, thereby attempting and understanding of what Roland Barthes identified as 'concrete abstraction.'
keywords	design process, architecture, knowledge, experimentation
series	CADline
last changed	1999/02/12 15:07

_id	e90b
authors	Arbab, Farhad
year	1990
title	Set Models and Boolean Operations for Solids and Assemblies
source	IEEE Computer Graphics and Applications November, 1990. vol. 10: pp. 76-86 : ill. includes bibliography.
summary	Application of solid modeling in computer-aided design, computer-aided manufacturing, and robotics often involve aggregates or assembling of disconnected pieces. This article presents an alternative CSG-like formalism based on open sets, in which both assemblies and connected pieces are modeled as points sets. Consequently, the same Boolean operations apply uniformly to connected pieces and assemblies
keywords	assemblies, CSG, solid modeling, boolean operations
series	CADline
last changed	1999/02/12 15:07

_id	8869
authors	Ataman, Osman
year	2002
title	Historical Analysis of Building - (Re)Construction in Olivette Park, USA
source	SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 63-66
summary	From 1959 to 1990, East St. Louis, Illinois deteriorated from an “All-American City” to a national symbol of urban blight. Located on the Mississippi River, the East St. Louis of today faces severe economic, social, and environmental problems. Nearly onequarter of the city’s work force is unemployed and about 40 percent of families are living below the poverty level. But East St. Louis was not always a distressed community. With strong ties to St. Louis and the surrounding region, East St. Louis onceflourished as the country’s second busiest railroad hub. Powerful economic and socio-political forces, as well as unfortunate historical circumstance, propelled the city into a downward spiral that drastically decreased the quality of life in East St. Louis. This paper presents the digital re-construction of the buildings and the analyses of the historical aspects of the housing construction and types in this area. Furthermore, it reports the survey and assessment of the quality of building stocks based on therevitalization plan that will provide some guidelines and suggestions for improvement, stability, and future needs.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	afa0
authors	Aziz, N.M., Bata, R. and Sudarshan, B.
year	1990
title	Bezier Surface : Surface Intersection
source	IEEE Computer Graphics and Applications. January, 1990. vol. 10: pp. 50-58
summary	In this article the authors explain the computational requirement and accuracy of two methods for finding the intersection of Bezier surfaces. In both methods, the existence of an intersection curve is confirmed by using the convex hull property of such surfaces. The first method evaluates the intersection by recursive subdivision of two patches with overlapping hulls. The second method detects a point on the intersection curve, then incrementally traces the intersection in the parametric spaces of the two surfaces. With both methods the intersection of a pair of first-order planar patches must be solved analytically. The intersection is approximated by first-order Bezier patches in the first case, and by planar triangles in the second. Overall, the method of incremental tracing gives more accurate results than the method of recursive subdivision
keywords	recursion, curves, convex hull, curved surfaces, intersection, Bezier, triangulation
series	CADline
last changed	2003/06/02 14:42

_id	4ac0
authors	Balachandran, M. B. and Gero, John S.
year	1990
title	Knowledge Engineering and Multicriteria Optimization
source	Berlin: Springer-Verlag, 1990. pp. 115-147. CADLINE has abstract only
summary	Many aspects of optimization, including problem formulation, algorithm selection and the interpretation of results require human judgment and experience, and are traditionally carried out by humans. Recently developed knowledge-based system methodologies now allow us to incorporate different forms of knowledge required to carry out such non-numeric tasks. The role and effectiveness of knowledge-based methodologies in multicriteria optimization are described and illustrated with examples
keywords	design, multicriteria, optimization, knowledge base
series	CADline
email
last changed	2003/06/02 13:58

_id	044f
authors	Balachandran, M.B. and Gero, John S.
year	1990
title	Role of Prototypes in Integrating Expert Systems and CAD Systems
source	Berlin: Springer-Verlag, 1990. v: Design: pp. 195-211
summary	This paper describes concepts which allow the development of integrated systems that combine the two technologies of expert systems and computer-aided drafting systems. It demonstrates how an expert system can be used for evaluating and criticizing designs described using traditional CAD packages. The notion of 'prototypes' has been used to play the central role in such an integration. The development, implementation and operation issues of an integrated system, called IPEXCAD, are described
keywords	expert systems, prototypes, design, CAD, integration, drafting
series	CADline
email
last changed	2003/06/02 13:58

_id	067e
authors	Banz, George
year	1990
title	Expert Systems and Artificial Intelligence in Real Estate Development Planning
source	CIB W55/W66 Joint Symposium. 1990. 7 p. : ill. includes bibliography. -- Abstracts in English and French
summary	Expert systems and artificial intelligence can contribute substantially to the quality of real-estate development analysis. 'A. I. coaches' help correlate input and check the validity of schedules. Expert systems enhance life cycle cost analysis. Property value indicators become viable when used in conjunction with remote sensing and life style mapping
keywords	economics, life cycle, expert systems, analysis
series	CADline
last changed	1999/02/12 15:07

_id	969c
authors	Barnes, Thomas
year	1990
title	Dynamic Interaction of Solids as a Design Tool
source	From Research to Practice [ACADIA Conference Proceedings] Big Sky (Montana - USA) 4-6 October 1990, pp. 29-40
doi	https://doi.org/10.52842/conf.acadia.1990.029
summary	Architectural form and order can sometimes be described as having dynamic characteristics. To capitalize on this notion, physical qualities (mass, velocity, material elasticity, and friction) are given to objects. The objects are set in motion and allowed to interact at will with each other and their environment. The physical qualities are the rules that govern the outcome of interactions. As a result, interactions can lead to affine transformations (translate, scale, rotate), reformations (topological editing), and/or deformations (geometrical editing) of the objects. The designer can investigate the effects of interaction between dynamic elements, vary their physical qualities, and evaluate the appropriateness of the outcome as a solution to the design problem.
series	ACADIA
last changed	2022/06/07 07:54

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