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 20 of 727

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

_id	a136
authors	Blaise, J.Y., Dudek, I. and Drap, P.
year	1998
title	Java collaborative interface for architectural simulations A case study on wooden ceilings of Krakow
source	International Conference On Conservation - Krakow 2000, 23-24 November 1998, Krakow, Poland
summary	Concern for the architectural and urban preservation problems has been considerably increasing in the past decades, and with it the necessity to investigate the consequences and opportunities opened for the conservation discipline by the development of computer-based systems. Architectural interventions on historical edifices or in preserved urban fabric face conservationists and architects with specific problems related to the handling and exchange of a variety of historical documents and representations. The recent development of information technologies offers opportunities to favour a better access to such data, as well as means to represent architectural hypothesis or design. Developing applications for the Internet also introduces a greater capacity to exchange experiences or ideas and to invest on low-cost collaborative working platforms. In the field of the architectural heritage, our research addresses two problems: historical data and documentation of the edifice, methods of representation (knowledge modelling and visualisation) of the edifice. This research is connected with the ARKIW POLONIUM co-operation program that links the MAP-GAMSAU CNRS laboratory (Marseilles, France) and the Institute HAiKZ of Kraków's Faculty of Architecture. The ARKIW programme deals with questions related to the use of information technologies in the recording, protection and studying of the architectural heritage. Case studies are chosen in order to experience and validate a technical platform dedicated to the formalisation and exchange of knowledge related to the architectural heritage (architectural data management, representation and simulation tools, survey methods, ...). A special focus is put on the evolution of the urban fabric and on the simulation of reconstructional hypothesis. Our contribution will introduce current ARKIW internet applications and experiences: The ARPENTEUR architectural survey experiment on Wie¿a Ratuszowa (a photogrammetrical survey based on an architectural model). A Gothic and Renaissance reconstruction of the Ratusz Krakowski using a commercial modelisation and animation software (MAYA). The SOL on line documentation interface for Kraków's Rynek G_ówny. Internet analytical approach in the presentation of morphological informations about Kraków's Kramy Bogate Rynku Krakowskiego. Object-Orientation approach in the modelling of the architectural corpus. The VALIDEUR and HUBLOT Virtual Reality modellers for the simulation and representation of reconstructional hypothesis and corpus analysis.
series	other
last changed	2003/04/23 15:14

_id	aa7f
authors	Bollinger, Elizabeth and Hill, Pamela
year	1993
title	Virtual Reality: Technology of the Future or Playground of the Cyberpunk?
doi	https://doi.org/10.52842/conf.acadia.1993.121
source	Education and Practice: The Critical Interface [ACADIA Conference Proceedings / ISBN 1-880250-02-0] Texas (Texas / USA) 1993, pp. 121-129
summary	Jaron Lanier is a major spokesperson of our society's hottest new technology: VR or virtual reality. He expressed his faith in the VR movement in this quote which appears in The User's Guide to the New Edge published by Mondo 2000. In its most technical sense, VR has attracted the attention of politicians in Washington who wonder if yet another technology developed in the United States will find its application across the globe in Asia. In its most human element, an entire "cyberpunk movement" has appealed to young minds everywhere as a seemingly safe form of hallucination. As architecture students, educators, and practitioners around the world are becoming attracted to the possibilities of VR technology as an extension of 3D modeling, visualization, and animation, it is appropriate to consider an overview of virtual reality. In virtual reality a user encounters a computersimulated environment through the use of a physical interface. The user can interact with the environment to the point of becoming a part of the experience, and the experience becomes reality. Natural and instinctive body movements are translated by the interface into computer commands. The quest for perfection in this human-computer relationship seems to be the essence of virtual reality technology. To begin to capture the essence of virtual reality without first-hand experience, it is helpful to understand two important terms: presence and immersion. The sense of presence can be defined as the degree to which the user feels a part of the actual environment. The more reality the experience provides, the more presence it has. Immersion can be defined as the degree of other simulation a virtual reality interface provides for the viewer. A highly immersive system might provide more than just visual stimuli; for example, it may additionally provide simulated sound and motion, and simultaneously prevent distractions from being present.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	e9f7
authors	Bouchlaghem, N.
year	2000
title	Optimising the design of building envelopes for thermal performance
source	Automation in Construction 10 (1) (2000) pp. 101-112
summary	Computer models for the simulation of the thermal performance of buildings have been in existence for many decades. Although these programs save a great deal of time and effort in computational terms they still rely on designers intuition and experience to achieve optimum solutions for a design problem. This paper presents a computer model which, not only simulates the thermal performance of the building taking into account design variables related to the building's envelope and fabric, but also applies numerical optimization techniques to automatically determine the optimum design variables, which achieve the best thermal comfort conditions. The main optimization program is supported by a graphical model for the design of window shading devices, which uses the numerical coefficients that define the window shading to model shading devices taking into account seasonal variations in solar angles and solar gains. The rationale and methodology used to develop the models is outlined and the resulting programs are described with examples of outputs. Finally, it is concluded that the models offer a valuable decision support system for designers at an early design state for the optimization of the passive thermal performance achieving optimum thermal comfort and savings in heating and cooling energy.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	b037
authors	Brusasco, P.L., Caneparo, L., Carrara, G., Fioravanti, A., Novembri, G. and Zorgno, Anna Maria
year	2000
title	Computer Supported Design Studio
source	Automation in Construction 9 (4) (2000) pp. 393-408
summary	The paper presents the ongoing experimentation of a Computer Supported Design Studio (CSDS). CSDS is part of our continuing effort to integrate computers and networks in the design studio. We recognise three corner stones to CSDS: memory, process and collaboration. They offer a framework for the interpretation of the pedagogical aspects of the teaching of architectural design in relation to the innovations produced by information and communication technologies. The theme of the 1998 CSDS is a railway station in Turin, Italy, to be incorporated in a reorganised rail transport system. The choice of this theme emphasises the realistic simulation aspects of the studio, where technical problems need to be interpreted from an architectural point of view.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	30f5
authors	Chan, Chen-Wei and Chiu, Mao-Lin
year	2000
title	A Simulation Study of Urban Growth Patterns with Fractal Geometry
doi	https://doi.org/10.52842/conf.caadria.2000.055
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. 55-64
summary	This paper depicts the use of fractal geometry in urban simulation. Fractal geometry, L-system, the DLA model, and related urban growth theories are first examined. Then an urban simulation system based on fractal geometry and L-system, Fractal_US, is built on the web for studying urban development patterns in various conditions. The Taipei city is simulated to demonstrate the visualization of urban growth and the result is presented for further discussion.
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	958e
authors	Coppola, Carlo and Ceso, Alessandro
year	2000
title	Computer Aided Design and Artificial Intelligence in Urban and Architectural Design
doi	https://doi.org/10.52842/conf.ecaade.2000.301
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. 301-307
summary	In general, computer-aided design is still limited to a rather elementary use of the medium, as it is mainly used for the representation/simulation of a design idea w an electronic drawing-table. hich is not computer-generated. The procedures used to date have been basically been those of an electronic drawing-table. At the first stage of development the objective was to find a different and better means of communication, to give form to an idea so as to show its quality. The procedures used were 2D design and 3D simulation models, usually used when the design was already defined. The second stage is when solid 3D modelling is used to define the formal design at the conception stage, using virtual models instead of study models in wood, plastic, etc. At the same time in other connected fields the objective is to evaluate the feasibility of the formal idea by means of structural and technological analysis. The third stage, in my opinion, should aim to develop procedures capable of contributing to both the generation of the formal idea and the simultaneous study of technical feasibility by means of a decision-making support system aided by an Artificial Intelligence procedure which will lead to what I would describe as the definition of the design in its totality. The approach to architectural and urban design has been strongly influenced by the first two stages, though these have developed independently and with very specific objectives. It is my belief that architectural design is now increasingly the result of a structured and complex process, not a simple act of pure artistic invention. Consequently, I feel that the way forward is a procedure able to virtually represent all the features of the object designed, not only in its definitive configuration but also and more importantly in the interactions which determine the design process as it develops. Thus A.I. becomes the means of synthesis for models which are hierarchically subordinated which together determine the design object in its developmental process, supporting decision-making by applying processing criteria which generative modelling has already identified. This trend is currently being experimented, giving rise to interesting results from process design in the field of industrial production.
series	eCAADe
email
more	http://www.uni-weimar.de/ecaade/
last changed	2022/06/07 07:56

_id	2b39
authors	Duarte, Rovenir Bertola
year	2000
title	O Uso do Computador no Ensino de Projeto: (por) uma Avaliação (Or Use do Computer nonEnsino de Project: (by) uma Avaliaction)
source	SIGraDi’2000 - Construindo (n)o espacio digital (constructing the digital Space) [4th SIGRADI Conference Proceedings / ISBN 85-88027-02-X] Rio de Janeiro (Brazil) 25-28 september 2000, pp. 361-363
summary	The computer approaches to the discipline of project near the fifties, with the idea that all the systems and processes can be object of mathematical simulation. However in the last times, the computers were used more in drawings than in the projects, “CADrafting is uncommon (...) and CADesign is almost nonexistent...” (STEVEN, 1991). At the same time it happened a surprising approach with to architecture schools. It stimulated more methodological approaches, and the subject moved, placing the computer as element transformer. The computers have really been changing the production and generation of documents, but the question is if it has been altering the method or process of elaboration of ideas. After so much search in direction to the computers it is time of thinking what was gotten with them and the problems that accompanies him. The work search to discuss the subjects where the computer influences in the learning and the students’ development.
series	SIGRADI
email
last changed	2016/03/10 09:50

_id	5d19
authors	Gómez Arvelo, Susana Carolina
year	2001
title	Simulador de proyecciones de sombras sobre modelos computarizados en 3d. Herramienta para evaluar la eficiencia de modelos de proteccion solar. [Shade simulator On 3D Computer Models. A Tool to Evaluate the Efficiency of Models for Solar Protection]
source	2da Conferencia Venezolana sobre Aplicación de Computadores en Arquitectura, Maracaibo (Venezuela) december 2001, pp. 156-165
summary	A Program of Graphic Computing, developed in the Language of Programming AUTOLISP and run in AUTOCAD 2000, which is guided toward the Investigation in Bioclimatic Architecture, is presented. Before a model of solar protection in 3D, and loading the input data of the geographical localization and orientation, time and evaluation date (chosen by the user), the program calculates and projects the simulation of the corresponding shade contours on every plane that constitutes the 3D pattern (openings, walls, protections, floor...). In this research different areas of knowledge concur: Plane and spherical trigonometry applied to the solar ray and to the Bioclimatic Architecture, space geometry, plane graphical representation of three-dimensional objects, a concept of the transformation of vision for the three-dimensional representation of the objects in computers, and modern programming techniques.
keywords	Bioclimatic Architecture; Heat Gaining Control; 3D Shades Simulator; Solar Protection
series	other
email
last changed	2003/02/14 08:29

_id	f44f
authors	Huang, Ying-Hsiu
year	2000
title	Investigating the Cognitive Behavior of Generating Idea Sketches. Neural Network Simulation
doi	https://doi.org/10.52842/conf.caadria.2000.287
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. 287-296
summary	In idea sketches, there are a number of ambiguous shapes. Designers will associate and transform some shapes into others (Liu, 1993). Then, they evaluate these shapes in terms of functions and design requirements; furthermore, they would have generated other shapes that certified the design requirements (Huang, 1999). However, not only is the idea of design composed of one element, but also consisted of varied components. The purpose of this paper is to investigate how designers generate ideas of multi-component products, and to simulate this phenomenon by neural networks. At the same time, this paper attempts to study the design cognitive behavior of idea-generating stages, and explores the designers' cognitive phenomenon. Therefore, there are two stages in this paper: First, I conduct a cognitive experiment to realize how designers generate the multi-component product and acquire the sketches that designers generated. Second, I train the neural networks to simulate the behavior of idea generation and explore the cognitive phenomenon in design sketches. As a result, networks associate one shape that trained before, and then generate a complete idea. This phenomenon is similar to the cognitive behavior of designers who saw the ambiguous shape as one shape, which was retrieved from LTM. Moreover, the neural network is examined by a rectangle, which is totally different from the training patterns. The network will associate a confused shape. But the network will associate different shapes by adjusting some critical parameters. Designers can generate variable shapes from one shape, but the signal neural network can't simulate this kind of behavior. On the contrary, this paper proposes five sequential networks to generate variable shapes from the same shape and simulates how designers develop ideas.
series	CAADRIA
email
last changed	2022/06/07 07:49

_id	0960
authors	Kamat, Vineet Rajendra
year	2000
title	Enabling 3D Visualization of Simulated Construction Operations
source	Virginia Polytechnic Institute and State University
summary	Simulation modeling and visualization can substantially help in designing complex construction operations and in making optimal decisions where traditional methods prove ineffective or are unfeasible. However, there has been limited use of simulation in planning construction operations due to the unavailability of appropriate visual communication tools that can provide users with a more realistic and comprehensible feedback from simulation analyses. Visualizing simulated construction operations in 3D can significantly help in establishing the credibility of simulation models. In addition, 3D visualization can provide valuable insight into the subtleties of construction operations that are otherwise non-quantifiable and presentable. New software development technologies emerge at incredible rates that allow engineers and scientists to create novel, domain-specific applications. This study capitalized on a computer graphics technology based on the concept of the Scene Graph to design and implement a general-purpose 3D Visualization System that is Simulation and CAD-software independent. This system, the Dynamic Construction Visualizer, enables realistic visualization of modeled construction operations and the resulting products in 3D and can be used in conjunction with a wide variety of simulation tools. This thesis describes the Dynamic Construction Visualizer as well as the Scene Graph architecture and the Frame Updating algorithms used in its design.
keywords	Scene Graphs; 3D Visualization; Animation; Simulation; Construction Operations; Computer Graphics
series	thesis:MSc
email
more	http://scholar.lib.vt.edu/theses/available/etd-10232000-19390056/
last changed	2004/06/02 19:12

_id	ga0008
id	ga0008
authors	Koutamanis, Alexander
year	2000
title	Redirecting design generation in architecture
source	International Conference on Generative Art
summary	Design generation has been the traditional culmination of computational design theory in architecture. Motivated either by programmatic and functional complexity (as in space allocation) or by the elegance and power of representational analyses (shape grammars, rectangular arrangements), research has produced generative systems capable of producing new designs that satisfied certain conditions or of reproducing exhaustively entire classes (such as all possible Palladian villas), comprising known and plausible new designs. Most generative systems aimed at a complete spatial design (detailing being an unpopular subject), with minimal if any intervention by the human user / designer. The reason for doing so was either to give a demonstration of the elegance, power and completeness of a system or simply that the replacement of the designer with the computer was the fundamental purpose of the system. In other words, the problem was deemed either already resolved by the generative system or too complex for the human designer. The ongoing democratization of the computer stimulates reconsideration of the principles underlying existing design generation in architecture. While the domain analysis upon which most systems are based is insightful and interesting, jumping to a generative conclusion was almost always based on a very sketchy understanding of human creativity and of the computer's role in designing and creativity. Our current perception of such matters suggests a different approach, based on the augmentation of intuitive creative capabilities with computational extensions. The paper proposes that architectural generative design systems can be redirected towards design exploration, including the development of alternatives and variations. Human designers are known to follow inconsistent strategies when confronted with conflicts in their designs. These strategies are not made more consistent by the emerging forms of design analysis. The use of analytical means such as simulation, couple to the necessity of considering a rapidly growing number of aspects, means that the designer is confronted with huge amounts of information that have to be processed and integrated in the design. Generative design exploration that can combine the analysis results in directed and responsive redesigning seems an effective method for the early stages of the design process, as well as for partial (local) problems in later stages. The transformation of generative systems into feedback support and background assistance for the human designer presupposes re-orientation of design generation with respect to the issues of local intelligence and autonomy. Design generation has made extensive use of local intelligence but has always kept it subservient to global schemes that tended to be holistic, rigid or deterministic. The acceptance of local conditions as largely independent structures (local coordinating devices) affords a more flexible attitude that permits not only the emergence of internal conflicts but also the resolution of such conflicts in a transparent manner. The resulting autonomy of local coordinating devices can be expanded to practically all aspects and abstraction levels. The ability to have intelligent behaviour built in components of the design representation, as well as in the spatial and building elements they signify, means that we can create the new, sharper tools required by the complexity resulting from the interpretation of the built environment as a dynamic configuration of co-operating yet autonomous parts that have to be considered independently and in conjunction with each other. P.S. The content of the paper will be illustrated by a couple of computer programs that demonstrate the princples of local intelligence and autonomy in redesigning. It is possible that these programs could be presented as independent interactive exhibits but it all depends upon the time we can make free for the development of self-sufficient, self-running demonstrations until December.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	4fa1
authors	Lee, E., Ida, Y., Woo, S. and Sasada, T.
year	1999
title	Environmental Design Using Fractals in Computer Graphics
doi	https://doi.org/10.52842/conf.ecaade.1999.533
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 533-538
summary	Computer graphics have developed efficient techniques for visualisation of the real world. Many of the algorithms have a physical basis, such as computational models for the light and the shadow, models of real objects (buildings, mountains, roads and so on) and the simulation of natural phenomenon. Now computer graphics techniques provide the virtual world with a perception of three dimensions. The concept of the virtual world and its technology have been expanding and intensifying in recent years. Almost everything in the real world has been simulated in virtual world. When it comes to a terrain model, what we need is labour and time. But now it is possible to simulate terrain like the real world using fractals in computer graphics with a very small program and small data set. This study aims to show how to build a real world impression in the virtual world. In this paper the authors suggest a landscape design method and show the results of its application.
keywords	Fractals, Polygon-Reduction, Computer Graphics, Virtual World, Collaboration
series	eCAADe
last changed	2022/06/07 07:51

_id	0995
authors	Liapi, Katherine A.
year	2000
title	Computer Simulation and Visualization of Geometrically Changing Structures
doi	https://doi.org/10.52842/conf.acadia.2000.267
source	Eternity, Infinity and Virtuality in Architecture [Proceedings of the 22nd Annual Conference of the Association for Computer-Aided Design in Architecture / 1-880250-09-8] Washington D.C. 19-22 October 2000, pp. 267-271
summary	The design of building structures that change shape and form to adapt to different functions or weather conditions requires the application of innovative building technologies, as well as the invention of a new architectural morphology. This morphology is directly related to the kinematic conception of the structure. A computer simulation of the motion of the structure and the display of the structure as an animation of moving parts can identify problems in its initial geometric and kinematic conception. It can also assess the effect of the changing geometry of the structure on space definition, building morphology, and functionality.
series	ACADIA
last changed	2022/06/07 07:59

_id	ae22
authors	Mahalingam, Ganapathy
year	2000
title	Enhanced Boundary Representation: A Lingua Franca for Computer-Based Building Performance Simulation?
doi	https://doi.org/10.52842/conf.acadia.2000.012
source	ACADIA Quarterly, vol. 19, no. 4, pp. 12-14
summary	With the realistic visual representation of buildings on the computer having reached maturity, the emphasis has now shifted to the performance simulation of buildings on the computer. The challenge of performance simulation in computer-based models of buildings lies in the integration of various simulation techniques that require different kinds of building representations. Traditional simulation techniques for luminous, acoustic and thermal environments require different building representations. Thepaper proposes that an enhanced boundary representation is a viable, common building representation format for performance simulation of illumination levels, acoustical parameters and thermal comfort, thereby providing a building representation format for multi-domain performancesimulation on the computer. Simulation techniques that have been developed for radiosity-based modeling of illumination in buildings, radiation-based modeling of sound propagation in spatial enclosures, and the modeling of thermal comfort based on mean radiant temperatures, point to a convergence of techniques. These techniques can all work based on an enhanced boundary or surface representation of buildings. The paper suggests that an enhanced boundary representation format, and integrated performance simulation techniques based on radiation, can together serve as a core model for developers of computer-aided design analysis systems.
series	ACADIA
email
last changed	2022/06/07 07:59

_id	fdb8
authors	Montagu, A., Rodriguez Barros, D. and Chernobilsky, L.
year	2000
title	The New Reality through Virtuality
doi	https://doi.org/10.52842/conf.ecaade.2000.225
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. 225-229
summary	In this paper we want to develop some conceptual reflections of the processes of virtualization procedures with the aim to indicate a series of misfits and mutations as byproducts of the “digital-graphic culture” (DGC) when we are dealing with the perception of the “digital space”. Considering the present situation, a bit chaotic from a pedagogical point of view, we also want to propose a set of “virtual space parameters” in order to organize in a systemic way the teaching procedures of architectural design when using digital technology. Nowadays there is a great variety of computer graphics applications comprising practically all the fields of “science & technology”, “architecture, design & urbanism”, “video & film”, “sound” and the massive amount of information technology protocols. This fact obliges us to have an overall view about the meaning of “the new reality through virtuality”. The paper is divided in two sections and one appendix. In the first section we recognise the relationships among the sensory apparatus, the cognitive structures of perception and the cultural models involved in the process of understanding the reality. In the second section, as architects, we use to have “a global set of social and technical responsabilities” to organize the physical space, but now we must also be able to organize the “virtual space” obtained from a multidimensional set of computer simulations. There are certain features that can be used as “sensory parameters” when we are dealing with architectural design in the “virtual world”, taking into consideration the differences between “immersive virtual reality” and “non inmersive virtual reality”. In the appendix we present a summary of some conclusions based on a set of pedagogical applications analysing the positive and the negative consequences of working exclusively in a “virtual world”.
keywords	Virtualisation Processes, Simulation, Philosophy, Space, Design, Cyberspace
series	eCAADe
email
more	http://www.uni-weimar.de/ecaade/
last changed	2022/06/07 07:58

_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	9d3a
authors	Morozumi, M., Uchiyama, T., Homma, R. and Tanae, M.
year	2000
title	A City Model for Studies of a Citizen's Way-Finding Behaviors
doi	https://doi.org/10.52842/conf.caadria.2000.077
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. 77-87
summary	This paper discusses the necessary features for a QTVR (cylinder-VR) based simulation system to study a citizen's behavior of finding their way to particular points, as well as observations found in the case studies that used several prototypes developed as a step in the studies. The authors tested prototype systems developed for a downtown shopping area of Kumamoto City, and observed answers to questionnaires in which 30 students who are familiar with the site compared the three prototypes. After observing cognitive maps sketched by nine strangers to the site, and after virtual walks with one of those prototypes: prototype-III, the authors concluded that it could provide a necessary level of visual representation and system operations as a tool for simulating citizens' travel behaviors.
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	d8df
authors	Naticchia, Berardo
year	1999
title	Physical Knowledge in Patterns: Bayesian Network Models for Preliminary Design
doi	https://doi.org/10.52842/conf.ecaade.1999.611
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 611-619
summary	Computer applications in design have pursued two main development directions: analytical modelling and information technology. The former line has produced a large number of tools for reality simulation (i.e. finite element models), the latter is producing an equally large amount of advances in conceptual design support (i.e. artificial intelligence tools). Nevertheless we can trace rare interactions between computation models related to those different approaches. This lack of integration is the main reason of the difficulty of CAAD application to the preliminary stage of design, where logical and quantitative reasoning are closely related in a process that we often call 'qualitative evaluation'. This paper briefly surveys the current development of qualitative physical models applied in design and propose a general approach for modelling physical behaviour by means of Bayesian network we are employing to develop a tutoring and coaching system for natural ventilation preliminary design of halls, called VENTPad. This tool explores the possibility of modelling the causal mechanism that operate in real systems in order to allow a number of integrated logical and quantitative inference about the fluid-dynamic behaviour of an hall. This application could be an interesting connection tool between logical and analytical procedures in preliminary design aiding, able to help students or unskilled architects, both to guide them through the analysis process of numerical data (i.e. obtained with sophisticate Computational Fluid Dynamics software) or experimental data (i.e. obtained with laboratory test models) and to suggest improvements to the design.
keywords	Qualitative Physical Modelling, Preliminary Design, Bayesian Networks
series	eCAADe
email
last changed	2022/06/07 07:59

_id	998a
authors	Navon, R.,
year	2000
title	Process and quality control with a video camera, for a floor-tilling robot
source	Automation in Construction 10 (1) (2000) pp. 113-125
summary	The paper describes the development of a floor-tiling robot. Both the development and the performance measurements of the robot were carried out with a graphic simulation system. Based on those measurements and on a time study of the corresponding manual work, the robot's work output is expected to be 2–5 times higher than that of the manual work. It was decided to concentrate, at this stage of the development, on the robot's autonomy at a workstation, which means that all operations at a workstation –– stabilizing and calibrating, loading tiles, etc. –– including real-time quality assurance (QA) are done without human intervention, while the transfer between workstations is assisted by an operator. The QA function has to identify the exact location and orientation of tiles to be taken, since they may be expected to differ from those specified in the robot's program. This is needed in order to allow accurate placing of the tiles in straight lines and with a uniform distance between them. Additionally, the QA function has to identify defective tiles. A computer vision system was developed to perform the QA functions. The prototype, its operational principles, and the experiments are described. The system's limitations are discussed together with needs for further research.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:23

_id	1743
authors	Ozel, Filiz
year	2000
title	Spatial Databases and the Analysis of Dynamic Processes in Buildings
doi	https://doi.org/10.52842/conf.caadria.2000.097
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. 97-106
summary	This article investigates the potential applications of geographic information systems (GIS) in the analysis and simulation of dynamic processes in buildings and explores it within the context of life safety analysis of buildings. In doing so, the primary focus of the article is to look at how architectural components and spaces can be represented in a spatial database system and what types of methods must be used in the analysis of such a database. Until now GIS applications have primarily been seen as tools suitable for the analysis of urban design and planning problems, therefore an additional objective here is to bring GIS to the attention of architectural researchers as a potential tool for the representation and analysis of spatial data in architecture.
series	CAADRIA
email
last changed	2022/06/07 08:00

For more results click below: