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

PDF papers
References

Hits 1 to 11 of 11

Reformat results as: short short into frame detailed detailed into frame

_id	00bc
authors	Chen, Chen-Cheng
year	1991
title	Analogical and inductive reasoning in architectural design computation
source	Swiss Federal Institute of Technology, ETH Zurich
summary	Computer-aided architectural design technology is now a crucial tool of modern architecture, from the viewpoint of higher productivity and better products. As technologies advance, the amount of information and knowledge that designers can apply to a project is constantly increasing. This requires development of more advanced knowledge acquisition technology to achieve higher functionality, flexibility, and efficient performance of the knowledge-based design systems in architecture. Human designers do not solve design problems from scratch, they utilize previous problem solving episodes for similar design problems as a basis for developmental decision making. This observation leads to the starting point of this research: First, we can utilize past experience to solve a new problem by detecting the similarities between the past problem and the new problem. Second, we can identify constraints and general rules implied by those similarities and the similar parts of similar situations. That is, by applying analogical and inductive reasoning we can advance the problem solving process.The main objective of this research is to establish the theory that (1) design process can be viewed as a learning process, (2) design innovation involves analogical and inductive reasoning, and (3) learning from a designer's previous design cases is necessary for the development of the next generation in a knowledge-based design system. This thesis draws upon results from several disciplines, including knowledge representation and machine learning in artificial intelligence, and knowledge acquisition in knowledge engineering, to investigate a potential design environment for future developments in computer-aided architectural design. This thesis contains three parts which correspond to the different steps of this research. Part I, discusses three different ways - problem solving, learning and creativity - of generating new thoughts based on old ones. In Part II, the problem statement of the thesis is made and a conceptual model of analogical and inductive reasoning in design is proposed. In Part III, three different methods of building design systems for solving an architectural design problem are compared rule-based, example-based, and case-based. Finally, conclusions are made based on the current implementation of the work, and possible future extensions of this research are described. It reveals new approaches for knowledge acquisition, machine learning, and knowledge-based design systems in architecture.
series	thesis:PhD
email
last changed	2003/05/10 05:42

_id	fd70
authors	Goldman, Glenn and Zdepski, Michael Stephen (Eds.)
year	1991
title	Reality and Virtual Reality [Conference Proceedings]
doi	https://doi.org/10.52842/conf.acadia.1991
source	ACADIA Conference Proceedings / ISBN 1-880250-00-4 / Los Angeles (California - USA) October 1991, 236 p.
summary	During the past ten years computers in architecture have evolved from machines used for analytic and numeric calculation, to machines used for generating dynamic images, permitting the creation of photorealistic renderings, and now, in a preliminary way, permitting the simulation of virtual environments. Digital systems have evolved from increasing the speed of human operations, to providing entirely new means for creating, viewing and analyzing data. The following essays illustrate the growing spectrum of computer applications in architecture. They discuss developments in the simulation of future environments on the luminous screen and in virtual space. They investigate new methods and theories for the generation of architectural color, texture, and form. Authors address the complex technical issues of "intelligent" models and their associated analytic contents. There are attempts to categorize and make accessible architects' perceptions of various models of "reality". Much of what is presented foreshadows changes that are taking place in the areas of design theory, building sciences, architectural graphics, and computer research. The work presented is both developmental, evolving from the work done before or in other fields, and unique, exploring new themes and concepts. The application of computer technology to the practice of architecture has had a cross disciplinary effect, as computer algorithms used to generate the "unreal" environments and actors of the motion picture industry are applied to the prediction of buildings and urban landscapes not yet in existence. Buildings and places from history are archeologically "re-constructed" providing digital simulations that enable designers to study that which has previously (or never) existed. Applications of concepts from scientific visualization suggest new methods for understanding the highly interrelated aspects of the architectural sciences: structural systems, environmental control systems, building economics, etc. Simulation systems from the aerospace industry and computer media fields propose new non-physical three-dimensional worlds. Video compositing technology from the television industry and the practice of medicine are now applied to the compositing of existing environments with proposed buildings. Whether based in architectural research or practice, many authors continue to question the development of contemporary computer systems. They seek new interfaces between human and machine, new methods for simulating architectural information digitally, and new ways of conceptualizing the process of architectural design. While the practice of architecture has, of necessity, been primarily concerned with increasing productivity - and automation for improved efficiency, it is clear that university based studies and research continue to go beyond the electronic replication of manual tasks and study issues that can change the processes of architectural design - and ultimately perhaps, the products.
series	ACADIA
email
more	http://www.acadia.org
last changed	2022/06/07 07:49

_id	0ed4
authors	Kusama, H., Fukuda, T., Park, J.W. and Sasada, T.
year	1996
title	Networked CAD System for Designer Group
doi	https://doi.org/10.52842/conf.caadria.1996.153
source	CAADRIA ‘96 [Proceedings of The First Conference on Computer Aided Architectural Design Research in Asia / ISBN 9627-75-703-9] Hong Kong (Hong Kong) 25-27 April 1996, pp. 153-161
summary	Open Design Environment (ODE), the concept of which was proposed in 1991, is a platform on computers to support synthetic to proceed design. We have applied ODE in practical use of design, design review and presentation to make collaboration by using CG in design participants. Recent linkage between LAN and Wide Area Network, just as the Internet, gave ODE a new progress to make wide area collaboration. It leads to generate the concept of Network ODE (NODE). However, we have found some problems on system to proceed the wide area collaboration by using ODE’s Design Tools. Since they are developed on the specific computer system, they can not correspond to the wide area collaboration on various network environments. As a result, the re-arrangement of design environment and the development of Design Tools are needed, which are rather flexible and general purpose, i.e. independent of machine sort and network adaptive. In this paper, to proceed collaboration in a designer group, how to create the system of NODE is demonstrated with the new Key Technologies of network and CG.
series	CAADRIA
last changed	2022/06/07 07:52

_id	ga0010
id	ga0010
authors	Moroni, A., Zuben, F. Von and Manzolli, J.
year	2000
title	ArTbitrariness in Music
source	International Conference on Generative Art
summary	Evolution is now considered not only powerful enough to bring about the biological entities as complex as humans and conciousness, but also useful in simulation to create algorithms and structures of higher levels of complexity than could easily be built by design. In the context of artistic domains, the process of human-machine interaction is analyzed as a good framework to explore creativity and to produce results that could not be obtained without this interaction. When evolutionary computation and other computational intelligence methodologies are involved, every attempt to improve aesthetic judgement we denote as ArTbitrariness, and is interpreted as an interactive iterative optimization process. ArTbitrariness is also suggested as an effective way to produce art through an efficient manipulation of information and a proper use of computational creativity to increase the complexity of the results without neglecting the aesthetic aspects [Moroni et al., 2000]. Our emphasis will be in an approach to interactive music composition. The problem of computer generation of musical material has received extensive attention and a subclass of the field of algorithmic composition includes those applications which use the computer as something in between an instrument, in which a user "plays" through the application's interface, and a compositional aid, which a user experiments with in order to generate stimulating and varying musical material. This approach was adopted in Vox Populi, a hybrid made up of an instrument and a compositional environment. Differently from other systems found in genetic algorithms or evolutionary computation, in which people have to listen to and judge the musical items, Vox Populi uses the computer and the mouse as real-time music controllers, acting as a new interactive computer-based musical instrument. The interface is designed to be flexible for the user to modify the music being generated. It explores evolutionary computation in the context of algorithmic composition and provides a graphical interface that allows to modify the tonal center and the voice range, changing the evolution of the music by using the mouse[Moroni et al., 1999]. A piece of music consists of several sets of musical material manipulated and exposed to the listener, for example pitches, harmonies, rhythms, timbres, etc. They are composed of a finite number of elements and basically, the aim of a composer is to organize those elements in an esthetic way. Modeling a piece as a dynamic system implies a view in which the composer draws trajectories or orbits using the elements of each set [Manzolli, 1991]. Nonlinear iterative mappings are associated with interface controls. In the next page two examples of nonlinear iterative mappings with their resulting musical pieces are shown.The mappings may give rise to attractors, defined as geometric figures that represent the set of stationary states of a non-linear dynamic system, or simply trajectories to which the system is attracted. The relevance of this approach goes beyond music applications per se. Computer music systems that are built on the basis of a solid theory can be coherently embedded into multimedia environments. The richness and specialty of the music domain are likely to initiate new thinking and ideas, which will have an impact on areas such as knowledge representation and planning, and on the design of visual formalisms and human-computer interfaces in general. Above and bellow, Vox Populi interface is depicted, showing two nonlinear iterative mappings with their resulting musical pieces. References [Manzolli, 1991] J. Manzolli. Harmonic Strange Attractors, CEM BULLETIN, Vol. 2, No. 2, 4 -- 7, 1991. [Moroni et al., 1999] Moroni, J. Manzolli, F. Von Zuben, R. Gudwin. Evolutionary Computation applied to Algorithmic Composition, Proceedings of CEC99 - IEEE International Conference on Evolutionary Computation, Washington D. C., p. 807 -- 811,1999. [Moroni et al., 2000] Moroni, A., Von Zuben, F. and Manzolli, J. ArTbitration, Las Vegas, USA: Proceedings of the 2000 Genetic and Evolutionary Computation Conference Workshop Program – GECCO, 143 -- 145, 2000.
series	other
email
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	3105
authors	Novak, T.P., Hoffman, D.L., and Yung, Y.-F.
year	1996
title	Modeling the structure of the flow experience
source	INFORMS Marketing Science and the Internet Mini-Conference, MIT
summary	The flow construct (Csikszentmihalyi 1977) has recently been proposed by Hoffman and Novak (1996) as essential to understanding consumer navigation behavior in online environments such as the World Wide Web. Previous researchers (e.g. Csikszentmihalyi 1990; Ghani, Supnick and Rooney 1991; Trevino and Webster 1992; Webster, Trevino and Ryan 1993) have noted that flow is a useful construct for describing more general human-computer interactions. Hoffman and Novak define flow as the state occurring during network navigation which is: 1) characterized by a seamless sequence of responses facilitated by machine interactivity, 2) intrinsically enjoyable, 3) accompanied by a loss of self-consciousness, and 4) selfreinforcing." To experience flow while engaged in an activity, consumers must perceive a balance between their skills and the challenges of the activity, and both their skills and challenges must be above a critical threshold. Hoffman and Novak (1996) propose that flow has a number of positive consequences from a marketing perspective, including increased consumer learning, exploratory behavior, and positive affect."
series	other
last changed	2003/04/23 15:50

_id	ecaade2023_281
id	ecaade2023_281
authors	Prokop, Šimon, Kubalík, Jiøí and Kurilla, Lukáš
year	2023
title	Neural Networks for Estimating Wind Pressure on Complex Double-Curved Facades
doi	https://doi.org/10.52842/conf.ecaade.2023.2.639
source	Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 2, Graz, 20-22 September 2023, pp. 639–647
summary	Due to their complex geometry, it is challenging to assess wind effects on the freeform, double-curved building facades. The traditional building code EN 1991-1-4 (730035) only accounts for basic shapes such as cubes, spheres, and cylinders. Moreover, even though wind tunnel measurements are considered to be more precise than other methods, they are still limited by the number of measurement points that can be taken. This limitation, combined with the time and resources required for the analysis, can limit the ability to fully capture detailed wind effects on the whole complex freeform shape of the building. In this study, we propose the use of neural network models trained to predict wind pressure on complex double-curved facades. The neural network is a powerful data-driven machine learning technique that can, in theory, learn an approximation of any function from data, making it well-suited for this application. Our approach was empirically evaluated using a set of 31 points measured in the wind tunnel on a 3D printed model in 1:300 scale of the real architectural design of a concert hall in Ostrava. The results of this evaluation demonstrate the effectiveness of our neural network method in estimating wind pressures on complex freeform facades.
keywords	wind pressure, double-curved façade, neural network
series	eCAADe
email
last changed	2023/12/10 10:49

_id	870b
authors	Sivaloganathan, Sangarappillai
year	1991
title	Sketching input for computer aided engineering
source	City University, Department of Mechanical Engineering and Aeronautics
summary	The design process often begins with a graphical description of the proposed device or system and sketching is the physical expression of the design engineer's thinking process. Computer Aided Design is a technique in which man and machine are blended into a problem solving team, intimately coupling the best characteristics of each. Solid modelling is developed to act as the common medium between man and the computer. At present it is achieved mainly by designing with volumes and hence does not leave much room for sketching input, the traditional physical expression of the thinking process of the design engineer. This thesis describes a method of accepting isometric free hand sketching as the input to a solid model. The design engineer is allowed to make a sketch on top of a digitizer indicating (i) visible lines; (ii) hidden lines; (iii) construction lines; (iv) centre lines; (v) erased lines; and (vi) redundant lines as the input. The computer then processes this sketch by identifying the line segments, fitting the best possible lines, removing the erased lines, ignoring the redundant lines and finally merging the hidden lines and visible lines to form the lines in the solid in an interactive manner. The program then uses these lines and the information about the three dimensional origin of the object and produces three dimensional information such as the faces, loops, holes, rings, edges and vertices which are sufficient to build a solid model. This is achieved in the following manner. The points in the sketch are first written into a file. The computer than reads this file, breaks the group of points into sub-groups belonging to individual line segments, fits the best lines and identify the vertices in two dimensions. These improved lines in two dimensions are then merged to form the lines and vertices in the solid. These lines are then used together with the three dimensional origin (or any other point) to produce the wireframe model in three dimensions. The loops in the wireframe models are then identified and surface equations are fitted to these loops. Finally all the necessary inputs to build a B-rep solid model are produced.
series	thesis:PhD
last changed	2003/02/12 22:37

_id	bbdc
authors	Tang, J.C.
year	1991
title	Findings from observational studies of collaborative work
source	international Joumal of Man-Machine Studies, 34(2), 143-160
summary	The work activity of small groups of three to four people was videotaped and analyzed in order to understand collaborative work and to guide the development of tools to support it. The software tools we currently have are often based on a single user model. Even those that are based on multiple user models define structures of interaction that restrict fluid collaboration. We need observe how people collaborate then build software that facilitates collaboration based on those observations, giving the users the tools" that are "naturally" defined in face-to-face interaction. In this experiment small groups of people were observed in a collaborative design task using a shared drawing space. Specific features of collaborative work activity that raise design implications for collaborative technology: 1. collaborators use hand gestures to uniquely communicate significant information 2. the process of creating and using drawings conveys much information not contained in the resulting drawings 3. the drawing space is an important resource for the group in mediating their collaboration 4. there is a fluent mix of activity in the drawing space 5. the spatial orientation among the collaborators and the drawing space has a role in structuring their activity
series	other
last changed	2003/04/23 15:14

_id	75e0
authors	Turoff, M.
year	1991
title	Computer-mediated communication requirements for group support
source	Journal of Organisational Computing 1, pp. 85-113
summary	This paper talks about the requirements of computer-mediated communication (CMC) for group support. An overview of CMC's historical evolution is presented. Advantages of CMC include opportunity for group to exhibit "collective intelligence", asynchronous support of communication process, self-tailoring of communication structures by users and groups, and the integration into the communication system of other computer resources and information systems. The main advantage of using CMC is in the very fundamental nature of the communication medium. The asynchronous approaches to group problem solving free individuals to deal with problems in those cognitive processes at which they excel. Seven asynchronous group process factors are also presented. A CMC metaphor is also presented. The metaphor components discussed are conferences, messages, activities and notifications. A conference can be tailored according to activities. An activity can be attached to any communication item. When triggered, it will execute a program or procedure in the local or remote host. Notification functions include alerting, closure and tracking. The concepts of roles, privileges, and tickets are also discussed. Finally, the components of two CMC systems are presented. These components include an object-oriented database, distributed user and group agents, a master virtual machine, and a SGML interface specification language.
series	journal paper
last changed	2003/04/23 15:14

_id	ecaade2020_139
id	ecaade2020_139
authors	Zwierzycki, Mateusz
year	2020
title	On AI Adoption Issues in Architectural Design - Identifying the issues based on an extensive literature review.
doi	https://doi.org/10.52842/conf.ecaade.2020.1.515
source	Werner, L and Koering, D (eds.), Anthropologic: Architecture and Fabrication in the cognitive age - Proceedings of the 38th eCAADe Conference - Volume 1, TU Berlin, Berlin, Germany, 16-18 September 2020, pp. 515-524
summary	An analysis of AI in design literature, compiled from almost 200 publications from the 1980s onwards. The majority of the sources are proceedings from various conferences. This work is inspired by the Ten Problems for AI in Design (Gero 1991) workshop report, which listed the problems to be tackled in design with AI. Almost 30 years since the publication, it seems most of the Ten Problems cannot be considered solved or even addressed. One of this paper's goals is to identify, categorize and examine the bottlenecks in the adoption of AI in design. The collected papers were analysed to obtain the following data: Problem, Tool, Solution, Stage and Future work. The conclusions drawn from the analysis are used to define a range of existing problems with AI adoption, further illustrated with an update to the Ten Problems. Ideally this paper will spark a discussion on the quality of research, methodology and continuity in research.
keywords	artificial intelligence; review; design automation; knowledge representation; machine learning; expert system
series	eCAADe
email
last changed	2022/06/07 07:57

_id	8b9e
authors	Steinhage, Volker
year	1991
title	POLYOC: Photogrammetric Measurements of Buildings and Architectural Models via Multi-View Steoreovision
doi	https://doi.org/10.52842/conf.ecaade.1991.x.a7v
source	Experiences with CAAD in Education and Practice [eCAADe Conference Proceedings] Munich (Germany) 17-19 October 1991
summary	We present a new method to derive a reliable 3D description of buildings and architectural models based on stereo vision using multiple camera views. This multi-view stereo technique has been successfully applied to many objects and has proved to be more reliable and more accurate than the well known binocular and even trinocular stereo techniques. The method has the following attractive features: (-) Flexibility: Arbitrary positions of an arbitrary amount of different camera views are allowed. (-) Automatic Calibration of each camera view is obtained by a simple procedure. (-) Reliable Stereo Analysis: The matching of corresponding image features of different images relies on a basic paradigm of Hypothesis Prediction and Validation. (-) Knowledge Base: Heuristics can be applied to correct the object reconstruction. (-) CAD-lnterface: The 3D description of the reconstructed object can automatically transferred via DXF to a CAD-system. (-) Low Costs: No special and expensive technical equipment like a laser or an UV rangefinder is necessary. A camera, a PC with CAD-system and a digitizing device like a digitizing tablet with a pointing pen are sufficient.
series	eCAADe
last changed	2022/06/07 07:50

No more hits.