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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	ddss9804
id	ddss9804
authors	Assaf, S.
year	1998
title	A Decision Support System (DSS) for Forward Housing Planning
source	Timmermans, Harry (Ed.), Fourth Design and Decision Support Systems in Architecture and Urban Planning Maastricht, the Netherlands), ISBN 90-6814-081-7, July 26-29, 1998
summary	This paper presents a specification of a Local Housing Strategy Decision Support System (LHS-DSS) (Conceptual and Physical model design). Emphasis throughout the design process is laid on the techniques that provide housing planners with accurate rapid assistance during the preparation process of local housing strategy. Relevant knowledge (descriptive, procedural, reasoning) and data about each step of the process, options for each situation as it arises, and a record of decisions made with underlying reasons are provided to system users. Three main components are identified to shape up the LHS-DSS: the language system for addressing housing problems; knowledge system which is responsible for gathering and accumulating the housing knowledge required; and problem processing system (an inquiry system) which produces suitable and effective recommendations to support the strategy preparation process.
series	DDSS
last changed	2003/11/21 15:16

_id	473f
authors	Bartnicka, Malgorzata
year	1998
title	The Influence of Light upon the Spatial Perception of Image
source	Cyber-Real Design [Conference Proceedings / ISBN 83-905377-2-9] Bialystock (Poland), 23-25 April 1998, pp. 21-26
summary	With regard to mental perception, light is one of the basic and strongest experiences influencing man. It is a phenomenon unchanged since the beginning of human kind, regardless of the fact what form or shape it was transmitted in. We are so used to light that we have stopped noticing how much we owe to it. It is the basic source and condition of our visual perception. Without light, illumination, we would not be able to see anything as it is light that transmits the shapes, distances and colours seen by us. The light which we perceive is a specific sight stimulus. It constitutes of only a small range of the spectrum of electromagnetic radiation existing in nature. The visible radiation encompasses the wave length from 400 to 800 nm. When the whole range of the visible wave spectrum enters the eye, the impression of seeing white light is produced. The light rays entering the sight receptors are subject to reflection, absorption and transmission. In the retina of the eye, the light energy is transformed into nerve impulses. The reception of light is dependent on the degree of absorption of the length of certain waves and the concentration of light. A ray of light entering the eye pupil is the proper eye stimulus which stimulates the receptors of the retina and causes visual impressions.
series	plCAD
last changed	1999/04/08 17:16

_id	817b
authors	Bong, C.W. and Wang, Y.C.
year	2002
title	A Shape Compactness Measurement Indexing with Fuzzy Multicriteria Decision Making Approach
doi	https://doi.org/10.52842/conf.caadria.2002.093
source	CAADRIA 2002 [Proceedings of the 7th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 983-2473-42-X] Cyberjaya (Malaysia) 18–20 April 2002, pp. 093-100
summary	Compactness of a district or zone is determined by considering its appearance and the area of dispersal of the district (Altman, 1998) and it is used as a characteristic to describe shape (Shiode, 1998; Knight, 1997). However, existing compactness measurement used to assess district plans in redistricting applications are vague and imprecision although there are more than thirty over Euclidean or non-Euclidean measurement methods. Therefore, this paper presents an integrated shape compactness measurement indexing with a fuzzy multicriteria decision making approach (FMCDM) to enhance the measurement of shape compactness. An experiment is conducted in order to verify the practically of the proposed model to improve existing compactness measurement method.
series	CAADRIA
email
last changed	2022/06/07 07:54

_id	ddss9809
id	ddss9809
authors	Brondino, Nair Cristina Margarido and Da Silva, Antônio Nélson Rodrigues
year	1998
title	A comparison of land valuation methods supported by GIS
source	Timmermans, Harry (Ed.), Fourth Design and Decision Support Systems in Architecture and Urban Planning Maastricht, the Netherlands), ISBN 90-6814-081-7, July 26-29, 1998
summary	The purpose of this work was to study three different strategies for the appraisal of urban land. The first, a theoretical strategy created by the authors of this study to reproduce the common conditions of Brazilian cities, uses increments and reductions in the value of a square meter of land according to each lot’s individual features. The second method, based on Multiple Regression techniques, is widely used for valuation purposes. Finally, the effectiveness of Artificial Neural Networks to deal with thiskind of problem is studied. A sample of 157 lots was collected from several neighbourhoods of a small Brazilian city for the case study. The lot features recorded were area, width, shape, distance to the downtown district of the city through the street network, existence of fences and paved sidewalks, and market price. Prediction errors have been estimated for each of the three methods in order to compare their results. Predicted and error values, added to Geographical Information Systems, may be used to build thematic maps and to check how each strategy applies to different areas of the city. The analyses of error values conducted in this study showed that Artificial Neural Networks presented the best performance as a land appraisal method for the case studied.
series	DDSS
email
last changed	2003/11/21 15:16

_id	3542
authors	Cha, M.Y. and Gero, J.S.
year	1998
title	Shape pattern recognition using a computable shape pattern representation
source	J.S. Gero and F. Sudweeks (eds), Artificial Intelligence in Design '98, Kluwer, Dordrecht, pp. 169-188
summary	Properties of shapes and shape patterns are investigated in order to represent shape pattern knowledge for supporting shape pattern recognition. It is based on the notion that shape patterns are classified in terms of similarity of spatial relationships as well as physical properties. Methods for shape pattern recognition are explained and examples from an implementation are presented.
keywords	Shape Patterns, Shape Representation
series	other
email
last changed	2003/04/06 08:57

_id	f323
authors	Cha, Myung Yeol
year	1998
title	Architectural shape pattern representation and its applications for design computation
source	University of Sydney
keywords	Data Processing; Computer-Aided Design; Pattern Perception
series	thesis:PhD
last changed	2003/02/12 22:37

_id	ee24
authors	Chien, S.-F., Magd, D., Snyder, J. and Tsa, W.-J.
year	1998
title	SG-Clips: A System to Support the Automatic Generation of Designs From Grammars
doi	https://doi.org/10.52842/conf.caadria.1998.445
source	CAADRIA ‘98 [Proceedings of The Third Conference on Computer Aided Architectural Design Research in Asia / ISBN 4-907662-009] Osaka (Japan) 22-24 April 1998, pp. 445-454
summary	SG-CLIPS is a computer tool that supports the automatic generation of designs from a predefined set of grammar rules that encapsulate the composition principles of a certain style of design. It is an open system that accepts any grammar conforming to the conventions described in this paper. We demonstrate the system through an example and discuss the relation to shape grammars and limitations.
keywords	Generative Systems, Shape Grammars, Rule-based Design Tools, CLIPS
series	CAADRIA
email
more	http://www.caadria.org
last changed	2022/06/07 07:55

_id	ga9921
id	ga9921
authors	Coates, P.S. and Hazarika, L.
year	1999
title	The use of genetic programming for applications in the field of spatial composition
source	International Conference on Generative Art
summary	Architectural design teaching using computers has been a preoccupation of CECA since 1991. All design tutors provide their students with a set of models and ways to form, and we have explored a set of approaches including cellular automata, genetic programming ,agent based modelling and shape grammars as additional tools with which to explore architectural ( and architectonic) ideas.This paper discusses the use of genetic programming (G.P.) for applications in the field of spatial composition. CECA has been developing the use of Genetic Programming for some time ( see references ) and has covered the evolution of L-Systems production rules( coates 1997, 1999b), and the evolution of generative grammars of form (Coates 1998 1999a). The G.P. was used to generate three-dimensional spatial forms from a set of geometrical structures .The approach uses genetic programming with a Genetic Library (G.Lib) .G.P. provides a way to genetically breed a computer program to solve a problem.G. Lib. enables genetic programming to define potentially useful subroutines dynamically during a run .* Exploring a shape grammar consisting of simple solid primitives and transformations. * Applying a simple fitness function to the solid breeding G.P.* Exploring a shape grammar of composite surface objects. * Developing grammarsfor existing buildings, and creating hybrids. * Exploring the shape grammar of abuilding within a G.P.We will report on new work using a range of different morphologies ( boolean operations, surface operations and grammars of style ) and describe the use of objective functions ( natural selection) and the "eyeball test" ( artificial selection) as ways of controlling and exploring the design spaces thus defined.
series	other
more	http://www.generativeart.com/
last changed	2003/08/07 17:25

_id	38
authors	Combes., Leonardo and Saito, Keiko
year	1998
title	Exploracion de Alternativas Formales de Edificios Ortogonales (Exploration of Formal Alternatives of Orthogonal Buildings)
source	II Seminario Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings / ISBN 978-97190-0-X] Mar del Plata (Argentina) 9-11 september 1998, pp. 286-291
summary	The shape of buildings determines the relationships between the contained spaces with the contained activities. As shapes are represented by their perimeter, the form and the length of building perimeters is of particular interest to architectural design. This paper presents a short computer program oriented to the exploration of modular floor plans related to their perimeter. The characteristics of a class of orthogonal configurations called polyminoes has been taken as a basis for the programming work. Polyminoes are briefly presented in the first part of the paper as well as some data concerning their geometrical structure. The operation of the computer program illustrated by some working examples, is described in the last part of the paper. The results obtained can be used for comparison between alternative shapes. Additional information about these modular shapes is given together with every particular form so as to ease the evaluation task. In these terms the program must be seen as a tool of assessment rather than as a designing procedure.
series	SIGRADI
email
last changed	2016/03/10 09:49

_id	eac5
authors	Damski, J. and Gero, J.S.
year	1998
title	Object representation and reasoning using halfplanes and logic
source	J.S. Gero and F. Sudweeks (eds), Artificial Intelligence in Design '98, Kluwer, Dordrecht, pp. 107-126
summary	Shapes and objects represent important ways with which to perceive and reason about the world. This paper develops a framework which uniformly encompasses both planar and non-planar surfaces to represent graphical objects in three dimensions. Based on the concept of halfspaces this framework allows the representation of volumes as predicates in logic. This representation is applied to demonstrate object concepts associated with reasoning about the topology of objects as individuals as well as groups of objects at the early, conceptual phase of designing. The example shows how both planar and non-planar boundaries of objects are treated uniformly.
keywords	Shape Reasoning, Logic Models
series	other
email
last changed	2003/04/06 08:59

_id	8ad1
authors	Elsas, P.A. and Vergeest, J.S.M.
year	1998
title	New functionality for computer-aided conceptual design: the displacement feature
source	Design Studies 19 (1), pp. 81-102
summary	Conceptual design using conventional 3D CAD systems is a controversial issue among industrial designers. Although one can produce complex, accurate, finished 3D models using these CAD systems, it is still difficult to use them during early, creative product design. In this paper, a method is described that allows the design of protrusions and depressions in sculptured surfaces in a flexible and interactive manner. Through interviews with industrial designers, the basic requirements for support of such functionality during conceptual design have been formulated. An implemented method based upon these requirements has been extensively evaluated by industrial designers, and these evaluations show that industrial designers find this functionality extremely useful during conceptual shape design.
series	journal paper
last changed	2003/04/23 15:50

_id	ddss9819
id	ddss9819
authors	Emdanat, S. S. and Vakalo, E.-G.
year	1998
title	Sharing Design Knowledge Using Shape Algebras
source	Timmermans, Harry (Ed.), Fourth Design and Decision Support Systems in Architecture and Urban Planning Maastricht, the Netherlands), ISBN 90-6814-081-7, July 26-29, 1998
summary	Recent work on shape algebras and the maximal element representation produced a uniform and composable representation of shapes. This paper presents ongoing work to formulate a framework for sharing design knowledge based on shape algebras. The shape algebraic definitions are translated into Ontolingua, a framework for representing ontologies. It provides forms for defining classes, relations, functions, objects, and theories that are part of a conceptualization. The paper discusses some of the axioms and definitions of this ontology. It discusses the factors that influenced its design and the selection of its representational abstractions.
series	DDSS
email
last changed	2003/08/07 16:36

_id	6fdf
authors	Emdanat, Samir S. and Vakalo, Emmanuel-G.
year	1998
title	An Ontology for Conceptual Design in Architecture
doi	https://doi.org/10.52842/conf.caadria.1998.425
source	CAADRIA ‘98 [Proceedings of The Third Conference on Computer Aided Architectural Design Research in Asia / ISBN 4-907662-009] Osaka (Japan) 22-24 April 1998, pp. 425-434
summary	This paper presents ongoing efforts to formulate an ontology for conceptual design on the basis of shape algebras. The ontology includes definitions for spatial elements such as points, lines, planes, and volumes, as well as, non-spatial elements such as material properties. The ontology is intended to facilitate sharing knowledge of shapes and their properties among independent design agents. This paper describes the formulation of the ontology and discusses some of its underlying classes, axioms, and relations.
keywords	Ontologies, Knowledge Representation
series	CAADRIA
email
more	http://www.caadria.org
last changed	2022/06/07 07:56

_id	eb08
authors	Gerlic, Krzysztof
year	1998
title	Hanging Roof Forms Research
source	Cyber-Real Design [Conference Proceedings / ISBN 83-905377-2-9] Bialystock (Poland), 23-25 April 1998, pp. 93-99
summary	This article presents a general description of the suspended roof forms. The concept covers all kinds of diaphragms, tents and cord nets. Depending on the roof construction, in particular the way of attachment, the used material or external factors, the roof forms undergo some decisive changes. The shape of the suspended roofs is difficult to define, especially in case of more complex roofs. Their surfaces are multi-curvature and do not comprise typical solids or geometrical forms, which make the design even more complicated. The shape of the surfaces is close to the minimal surfaces, i.e. those, which we would obtain form a bubble film spread over any limited outline. Unfortunately, the very designing, element dimensions as well as the tension design are still troublesome. Only the finite element method, if applied, allows the film form design. Nowadays, thanks to particular computer programmes, it is possible to simulate certain phenomena.
series	plCAD
last changed	1999/04/08 17:16

_id	46bb
authors	Gerzso, J. Michael
year	1998
title	Speculations on a Machine-Understandable Language for Architecture
doi	https://doi.org/10.52842/conf.acadia.1998.302
source	Digital Design Studios: Do Computers Make a Difference? [ACADIA Conference Proceedings / ISBN 1-880250-07-1] Québec City (Canada) October 22-25, 1998, pp. 302-314
summary	One of the objectives of research in computer-aided design in architecture has been to make computer tools or instruments for architectural design, not just drafting. There has been work presented at ACADIA and other conferences related to artificial intelligence, data bases, shape grammars, among others. In all of these cases, existence of a computer language in one form or another is implied. The purpose of this paper is to argue that the progress in the development of intelligent design systems (IDS) is closely linked to the progress of the languages used to implement such systems. In order to make the argument, we will adopt an approach of first specifying the characteristics of an IDS in terms of a conceptual framework of computer languages in a CAD system in general, and what it means to develop a machine-understandable language for architectural CAD in particular. The framework is useful for classifying research projects and for structuring a research agenda in architectural CAD.
series	ACADIA
email
last changed	2022/06/07 07:51

_id	9bee
authors	Gerzso, J. Michael
year	2001
title	Automatic Generation of Layouts of an Utzon Housing System via the Internet
doi	https://doi.org/10.52842/conf.acadia.2001.202
source	Reinventing the Discourse - How Digital Tools Help Bridge and Transform Research, Education and Practice in Architecture [Proceedings of the Twenty First Annual Conference of the Association for Computer-Aided Design in Architecture / ISBN 1-880250-10-1] Buffalo (New York) 11-14 October 2001, pp. 202-211
summary	The article describes how architectural layouts can be automatically generated over the Internet. Instead of using a standard web server sending out HTML pages to browser client, the system described here uses an approach that has become common since 1998, known as three tier client/server applications. The server part of the system contains a layout generator using SPR(s), which stands for “Spatial Production Rule System, String Version”, a standard context- free string grammar. Each sentences of this language represents one valid Utzon house layout. Despite the fact that the system represents rules for laying out Utzon houses grammatically, there are important differences between SPR(s) and shape grammars. The layout generator communicates with Autocad clients by means of an application server, which is analogous to a web server. The point of this project is to demonstrate the idea that many hundreds or thousands of clients can request the generation of all of the Utzon layouts simultaneously over the Internet by the SPR(s) server, but the server never has to keep track when each client requested the generation of all of the layouts, or how many layouts each client has received.
keywords	Internet, Spatial-Production-Rules Grammars, Utzon
series	ACADIA
email
last changed	2022/06/07 07:51

_id	ed8d
authors	Hui, K.C. and Li, Yadong
year	1998
title	A feature-based shape blending technique for industrial design
source	Computer-Aided Design, Vol. 30 (10) (1998) pp. 823-834
summary	Blending or averaging of two-dimensional shapes usually operates on sets of discrete points or polygons approximating the objects. This relies on a series of evenlydistributed or properly positioned points on the boundary of the objects. Features or characteristics of the objects are not well considered. This paper presents asimple but effective technique for blending 2D shapes composed of curve segments. Features that are essential for shape blending are extracted. Correspondencebetween features of the objects are then established. The correspondence between points on a pair of corresponding features are finally established for theinterpolation process. This allows characteristic features of the objects to be retained in the blending operation which is essential in industrial design. An experimentalsystem was developed for blending 2D contours with curved boundary. Test results showed that the proposed approach produces results suitable for industrialdesign.
keywords	Morphing, Form Features, Industrial Design, Shape Blending, In-Betweening, Feature, Industrial Design
series	journal paper
last changed	2003/05/15 21:33

_id	37
authors	Morelli, RubÈn DarÌo and Marina, Cristian
year	1998
title	Geometria y Grafica Digital Como Reflexion y Racionalizacion Del Proyecto Arquitectonico (Geometry and Digital Graphics as Reflexion and Rationalization of the Architectural Project)
source	II Seminario Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings / ISBN 978-97190-0-X] Mar del Plata (Argentina) 9-11 september 1998, pp. 280-285
summary	The methodology of the work consists in the following: (a) Starting from the photographic image of an architectonic work (Santisimo Sacramento Church situated in 3451 Bv. OroÒo street, Rosario city, Santa Fe, Republica Argentina), and applying the rules of Descriptive Geometry. about photographic perspective, rebuild - restore the orthogonal parallel projection of its facade. (b) Once the restitution is done, introduce the information into the computer, in order to: Make a geometric analysis of the architectonic shape, applying 2D systems (bidimensional diedric or Monge method ) and 3D (tridimensional, wireframes and renders); Obtain a complete 3D image of the Tower, that means the virtual model of the real object.
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	6f74
authors	Norman, Richard
year	1998
title	Teaching Computation for Design
doi	https://doi.org/10.52842/conf.ecaade.1998.115
source	Computers in Design Studio Teaching [EAAE/eCAADe International Workshop Proceedings / ISBN 09523687-7-3] Leuven (Belgium) 13-14 November 1998, pp. 115-122
summary	Modeling the formal idea has long been problematic in schools. Renaissance tools, however inspired by the invention of perspective, usually result in two-dimensional sketches. Cardboard and small pieces of wood occasionally become the three-dimensional media of first visualization in studios; modeling on the computer is a newer idea. This paper examines two experiments, one where design fundamentals and solid modeling are introduced in a common studio, the other where instruction is removed from the studio environment and made an adjunct elective. In the first case the course is an introduction to both design and computation, an electronic investigation of Paul Klee’s first principles: point, line, shape, form and space—adding, subtracting, rotating and multiplying objects using Beaux Arts principles to create the design. The result is architectural form-making that was not possible in the studio-past. The second case is a course which isolates computer instruction from the studio, making it a separate academic discipline. Fantasy projects then demonstrate computational principle, exploring pure form without burden of technical or social obligation that studio imposes; alternative methods are presented for introducing design computation to the architectural student.
series	eCAADe
email
more	http://www.eaae.be/
last changed	2022/06/07 07:58

_id	e122
authors	Park, Soo-Hoon and Gero, John S.
year	1998
title	Analysis of Architectural Sketches Using Categorical Shape Knowledge Based on Shape Features
doi	https://doi.org/10.52842/conf.caadria.1998.405
source	CAADRIA ‘98 [Proceedings of The Third Conference on Computer Aided Architectural Design Research in Asia / ISBN 4-907662-009] Osaka (Japan) 22-24 April 1998, pp. 405-414
summary	Shape feature analysis method is suggested as a computational support for the association of pictorial patterns of sketches with design semantics. Geometric patterns have been represented with qualitative scheme which is capable of representing classes for a collection of instances. Similarities to the particular shape feature categories have been measured to compare the sketch instances.
keywords	Sketches, Q-Code, Shape Feature, Categorical Shape Knowledge
series	CAADRIA
email
more	http://www.caadria.org
last changed	2022/06/07 07:59

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