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	bf5f
authors	Chen, Xiangping
year	1995
title	Representation, Evaluation and Edition of Feature-based and Constraint- based Design
source	Purdue University
summary	This thesis investigates a general and systematic approach to feature-based and constraint-based design. We combine feature-based design and constraint-based design by globally decomposing a design into a sequence of feature attachments and locally defining and positioning each feature by constraints. Analogous to the concept of high-level programming languages, we formalize a layered design model that eliminates the dependency of a design representation on a solid modeler. With this design model, design intent, such as feature descriptions and constraints, is stored in an unevaluated, modeler-independent design representation while the geometry to which it corresponds is stored in an evaluated, modeler-dependent design representation. The separation essentially relies on a naming and matching schema that converts between a geometric reference and a generic name, and a design compiler that automatically instantiates the unevaluated design representation to an evaluated design representation with respect to a solid modeler. The geometric references for defining feature attributes and constraints are recorded with their generic names in the unevaluated design representation. We propose several techniques for naming geometric entities unambiguously. The design compilation or instantiation involves remapping a generic name back to a geometric reference in the selected geometric modeler, solving constraints and implementing feature operations or attachments. Instead of developing a constraint solver for this design compiler, we use an independent and general solver. Feature attachment operations are different from classical Boolean operations in solid modeling. However, we provide a semantics for them that is based on existing operations in solid modeling. The layered design model allows users to edit archived conceptual designs to derive new designs quickly. We investigate the coordination of later features in the unevaluated and modeler-independent representation when a feature is edited and provide a method for editing feature-based and constraint-based design. We also discuss how to extend this work to a commercial feature-based and constraint-based CAD system.
series	thesis:PhD
last changed	2003/02/12 22:37

_id	27
authors	De Gregorio, R., Carmena, S., Morelli, R.D., AvendaÒo, C. and Lioi, C.
year	1998
title	La Construccion del Espacio del Poder. Museo de la Casa Rosada (The Construction of the Space of Power. Museum of the "Casa Rosada" (Argentinean Presidential House))
source	II Seminario Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings / ISBN 978-97190-0-X] Mar del Plata (Argentina) 9-11 september 1998, pp. 212-217
summary	The present work is part of the exposition "Francesco Tamburini, La ConstrucciÛn del Espacio del Poder I", exhibited in Rivadavia Cultural Center ( Rosario city), and in Casa Rosada Museum during 1997. The Exposition is based on an investigation program of the space that involves Casa Rosada, determining this space as the first piece of its collection. In 1995, when a group of argentines where visiting the picture gallery Pianetti (Jesi, Italy) there have been found some watercolours of Francesco Tamburini (1846-1890), planner of the main faÁades of the Government and author of many works. These watercolours have great value for architecture, and unknown by public, they have been the starting point of the Exposition. Among these argentines was Roberto De Gregorio architect, historian teacher of this school of architecture, and in charge of the historical investigation. C.I.A.D.'s specific work consists in converting in digital data Casa Rosada's faÁades. The two first stages, already completed, finished on the digital data conversion of facades, in front of Plaza de Mayo and Rivadavia street, with presidential access esplanade. Actually the work is centred on the two facades left and on the elaboration of an electronic model for the edition of a CD-ROM containing the information of the exposition.
series	SIGRADI
email
last changed	2016/03/10 09:50

_id	b5d9
authors	González, Guillermo and Gutiérrez, Liliana
year	1999
title	El TDE-AC: tecnología digital y estrategia pedagógica (The Tde-ac: Digital Technology and Pedagogical Strategy)
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 269-271
summary	In 1995 the programming of a specialized, expert graphic software CA-TSD, began. The TSD acronym designates a graphic language derived from the theory of spatial delimitation, it systematizes all possibilities of selection and combination of flat and volumetric figures. It establishes necessary and sufficient morphic and tactic dimensions to account for all possible relationships of selection and combination. TSD proposes a syntactic reading of those formal, pure design operations underlying traditional representations. Tracings and complex configurations described by tree-hierarchical structures of simple configurations allow for a coherent syntactic analysis of the design structure of any object this will allow the construction of a pure design formula for the conscious and unconscious prefiguration operations of an artist or style in this presentation, we will use our proprietary CA-TSD software that will allow for fast verification of what's stated, including architecture and graphic design examples.
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	4c7e
authors	Mitchell, W.
year	1995
title	City of Bits: space, place, and the infobahn
source	The MIT Press
summary	Entertaining, concise, and relentlessly probing, City of Bits is a comprehensive introduction to a new type of city, a largely invisible but increasingly important system of virtual spaces interconnected by the emerging information superhighway. William Mitchell makes extensive use of concrete, practical examples and illustrations in a technically well-grounded yet accessible examination of architecture and urbanism in the context of the digital telecommunications revolution, the ongoing miniaturization of electronics, the commodification of bits, and the growing domination of software over materialized form. In seven chapters - Pulling Glass, Electronic Agoras, Cyborg Citizens, Recombinant Architecture, Soft Cities, Bit Biz, and Getting to the Good Bits - Mitchell argues that the crucial issue before us is not one of putting in place the digital plumbing of telecommunications links and associated electronic appliances, nor even of producing content for electronic delivery, but rather one of creating electronically mediated environments for the kinds of lives that we want to lead.
series	other
last changed	2003/04/23 15:14

_id	ascaad2007_025
id	ascaad2007_025
authors	Speed, C.
year	2007
title	A Social Dimension to Digital Architectural Practice
source	Em‘body’ing Virtual Architecture: The Third International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD 2007), 28-30 November 2007, Alexandria, Egypt, pp. 291-304
summary	In 1995 the first in a series of three books were published by Academy Editions, that have since become a vivid handbook that documents how designers responded to the development of architectural drawing applications and the growth of the internet, to establish a form of digital architecture. Offering dramatic images and emotive texts, many of the architects and designers featured in these books deeply affected the perception of digital architecture’s mission by students and elements of the design community. Concentrating upon how to resolve the view that time and space are separate dimensions, and the immersive and dematerial potentials of cyberspace, the developments of this ‘cyberromanticism’ (Coyne 1999) ultimately were not used to sustain digital architectural activity. This paper uses the Academy Editions series to understand how such a vivid aspect of digital architecture failed to fulfil its aspirations. The paper begins by establishing the premise for digital architecture through a link with mainstream architectures interest in the concept of shelter. Through a summary of the practical and theoretical methods outlined by the early designers within the series of publications, the paper demonstrates the critical potential of the field. However a summary of how the proliferation of early imagery fuelled a visual mannerism traces how the third Architects in Cyberspace publication represented a crisis in both identity and practice. The paper then identifies an opportunity for recovering the theoretical imperatives within digital architecture by reflecting upon the emergence of ‘interactive architectures’ use of a ‘social’ dimension that was previously hindered by the use of computer applications in early digital architecture. The paper closes with a reference to two of the authors practical projects that use social data to inform the generation of digital architecture.
series	ASCAAD
email
last changed	2008/01/21 22:00

_id	0237
authors	Wrona, Stefan
year	1995
title	VDS Virtual Design Studio
source	CAD Space [Proceedings of the III International Conference Computer in Architectural Design] Bialystock 27-29 April 1995, pp. 227-232
summary	The Department of Architecture Warsaw University of Technology was the first in Poland to take part in the third edition of the international student workshop -Virtual Design Studio. This year’s subject is a competition organized by ACSA 2A Center for Cultural and Religious Studies". The design is located on Miyajima Island in the Inland Sea of Japan near Hiroshima. VDS workshops are a proposal to create a new approach to architectural designing - working in joint groups, where the participants are separated by long distances. This idea wouldn't possible without an important tool - the InterNet. The information is sent mainly by E-mail through News Servers made by groups in each country. The News Server works as electronic pinup board where every student can locate his work. The multimedia tool -HyperDoc- permits students to easily and quickly look at other students' work. VDS'95 participants are divided into international groups of 5-7 people, They use almost every method of computer presentation: photorendering, animation, scanned freehand drawings and photos. The basic tool is CAD. Students also use traditional methods of representation like models, sketches, drawings. The Virtual Design Studio is an important experience. It shows a new concept of designing: Computer Mediated Design. The necessary contact between architect and client can be realized by the computer network. The problem of distance is eliminated. Conclusions from VDS activity will permit the creation in the future of a special net of design studios, where all discussions will be accomplished by computer. All over the world the network of Infoways will bring people together.
series	plCAD
email
last changed	2003/05/17 10:01

_id	41e5
authors	Abendroth, M., Decock, J. and Mestaoui, N.
year	2000
title	O_1:// the hypertextu(r)al matrix
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. 75-76
summary	Founded in 1995 LAB[au], laboratory for architecture and urbanism, links theoretic research LAB[a+u] to concrete works of conception and realisations LA.BAU. LAB[au] elaborates a “hyperdesign” investigating the implications of new technologies of communication and computation in spatiotemporal and social processes and their forms of representation as architecture and urbanism. The transposition of the hypertext model to architectural and urban concepts question the mutation of the spatial and semantic construct of space. The definition of architecture as a code is based on “glocal” systems according to the processes of computation and communication.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	e75d
authors	Achten, H., Dijkstra, J., Oxman, R. and Bax, Th.
year	1995
title	Knowledge-Based Systems Programming for Knowledge Intensive Teaching
doi	https://doi.org/10.52842/conf.ecaade.1995.139
source	Multimedia and Architectural Disciplines [Proceedings of the 13th European Conference on Education in Computer Aided Architectural Design in Europe / ISBN 0-9523687-1-4] Palermo (Italy) 16-18 November 1995, pp. 139-148
summary	Typological design implies extensive knowledge of building types in order to design a building belonging to a building type. It facilitates the design process, which can be considered us a sequence of decisions. The paper gives an outline of a new approach in a course teaching typological knowledge through the medium of Knowledge-Based Systems programming. It demonstrates how Knowledge-Based Systems offer an appropriate structure for analysing the knowledge required to implement typological design. The class consists of third-year undergraduate students with no extensive previous programming experience. The implementation language is AutoLISP which operates in the AutoCAD environment. The building type used in the course is the office building. in order to become acquainted with both building type and programming in AutoLISP, information and instructions have been gathered and prestructured, including a worked out analysis and AutoLISP code. Office plans are generated through use of the Knowledge-Based System. They are encoded in the form of frames. At the end of the course the students will have learned the basics of Knowledge-Based Systems, have been introduced to programming these systems, have analysed and reflected upon the design process, and gained insight into a specific building type.
series	eCAADe
email
more	http://dpce.ing.unipa.it/Webshare/Wwwroot/ecaade95/Pag_18.htm
last changed	2022/06/07 07:54

_id	6cb2
authors	Af Klercker, Jonas
year	1995
title	Architects Early Sketching on Computer Using Multimedia
doi	https://doi.org/10.52842/conf.ecaade.1995.247
source	Multimedia and Architectural Disciplines [Proceedings of the 13th European Conference on Education in Computer Aided Architectural Design in Europe / ISBN 0-9523687-1-4] Palermo (Italy) 16-18 November 1995, pp. 247-256
summary	This paper presents a development work which aims at practical applications of ideas built on experiences in practise and education and the theoretical development in the BAS.CAAD project. The important difference between BAS.CAAD and CAD programs of today is the possibility to handle user organisation, building design and site in the same program. This means that design today has to be done in at least 3 separate programs with different ways of defining objects. It is then a computer technical problem to mix and study the relations between objects of separate origin. In a recent project our method to overcome this difficulty in CAAD computing was using a Multimedia program making visual simulations to analyse consequences of form etc. As the process went on and forms where more concrete it was possible to make simulations worth showing and discussing to involve colleagues, clients and users.
series	eCAADe
email
more	http://dpce.ing.unipa.it/Webshare/Wwwroot/ecaade95/Pag_51.htm
last changed	2022/06/07 07:54

_id	0c8e
authors	Ager, Mark Thomas and Sinclair, Brian R.
year	1995
title	StereoCAD: Three Dimensional Representation
source	Sixth International Conference on Computer-Aided Architectural Design Futures [ISBN 9971-62-423-0] Singapore, 24-26 September 1995, pp. 343-355
summary	Concepts of stereoscopic vision have been around for more than two thousand years. Despite this long history, its application to the field to architecture and design seems relatively unexplored. Synthesis of two technologies, the stereoscope and the computer, was the focus of the present study. The goal of the research was to determine if computer-generated stereoscopic pairs hold value for architectural design. Using readily available computer technology (Apple Macintosh) the research team modelled and rendered an existing project to verify the degree of correlation between the physical construct, the computer 3D model and resultant correlation between the physical construct, the computer 3D model and resultant rendered stereo-paired representation. The experiments performed in this study have shown that producing stereo-paired images that highly correlate to reality is possible using technology that is readily available in the marketplace. Both the technology required to produce (i.e., personal computer and modelling/rendering software) and view (i.e., modified stereoscope) the images is unimposing. Both devices can easily fit in a studio or a boardroom and together can be utilized effectively to permit designers, clients and end-users to experience proposed spaces and projects. Furthermore, these technologies are familiar (clients and end-users have already experienced them in other applications and settings) and assume a fraction of the cost of more dynamic, immersive virtual reality systems. Working from this base, limitations of the process as well as future applications of computer-generated stereoscopic images are identified.
keywords	Stereovision, Representation, Computers, Architects, Design
series	CAAD Futures
last changed	2003/11/21 15:15

_id	4bf6
authors	Akin, O. and Lin, C.
year	1995
title	Design Protocol data and novel design decisions
source	Design Studies, 16 (#2, April), 211-236
summary	This work is a part of The Delft Protocols Workshop which is an international gathering of experts on design research. The objective is to study the behaviours of designers using techniques of cognitive psychology in general and protocol analysis in particular. The purpose of this paper is to explore the relationship between visual-graphic data processing and novel design ideas. Several analyses dealing with verbal-conceptual and visual-graphic data have been conducted; and the relationships between design activities and design decisions have been explored. The findings indicate that phases of the design process and the activities correlate with key design decisions.
series	journal paper
email
last changed	2003/04/23 15:14

_id	8a8a
authors	Akin, Ö., Sen, R., Donia,M. and Zhang, Y.
year	1995
title	SEED-Pro: Computer-Assisted Architectural Programming in SEED
source	Journal of Architectural Engineering -- December 1995 -- Volume 1, Issue 4, pp. 153-161
summary	Computer-assisted architectural programming is in its infancy. What there is in terms of architectural programming theory often differs from practice. In the first half of this paper we define relevant terms, provide abrief review of the state of the art, and draw attention to the primacy of architectural programming in design. SEED-Pro is introduced as an intelligent assistant providing structure to the normally open-endedactivities of design. This includes the creation of an architectural program from scratch. In the second, more technical, part of the paper we emphasize three specific topics. The design problem specificationfunctionality is described. The generation and evaluation of the emerging architectural program is discussed. An approach to the decomposition of the architectural program into alternative hierarchies is provided.The paper concludes with a discussion of what is and remains to be accomplished.
series	journal paper
email
last changed	2003/05/15 21:27

_id	c078
authors	Allegra, M, Fulantelli, G. and Mangiarotti, G.
year	1995
title	A New Methodology to Develop Hypermedia Systems for Architecture History
doi	https://doi.org/10.52842/conf.ecaade.1995.043
source	Multimedia and Architectural Disciplines [Proceedings of the 13th European Conference on Education in Computer Aided Architectural Design in Europe / ISBN 0-9523687-1-4] Palermo (Italy) 16-18 November 1995, pp. 43-52
summary	This paper illustrates a research project concerning the analysis of architectural works through a comparative study based on hypermedia tools; by exploring the hypermedia, users can find the main subjects relative to the "method " of architectural planning. The use of multimedia in architecture allows the integration in a single system of different types of information which are necessary for the description of a work. texts, designs, photos and sounds. In addition, the hypertext information structure allows the direct intervention on analyzed projects, by pointing out the more important themes and their relationships. Users have the opportunity to immerse themselves in hypermedia and choose the subject to navigate through on each occasion. Our research project aims at developing a prototype concerning two architects. I.L.Kahn and F.L. Wright. The development methodology is based on the key role played by the components of architectonic works, thus allowing users to compare them in a simple and correct way. The methodology used in this work can be extended to other architects or periods, by simply changing the possibility of navigation, i.e. by changing the reading keys.
series	eCAADe
more	http://dpce.ing.unipa.it/Webshare/Wwwroot/ecaade95/Pag_6.htm
last changed	2022/06/07 07:54

_id	0bbb
authors	Alshawi, Mustafa
year	1995
title	Dynamic Generation of Design Plans at the Brief Stage
source	Sixth International Conference on Computer-Aided Architectural Design Futures [ISBN 9971-62-423-0] Singapore, 24-26 September 1995, pp. 219-228
summary	The traditional approach to design and construction suffers from many limitations. As the technology becomes more available to the average users, the need for an effective and efficient solution has never been greater. This paper introduces an alternative approach to the life cycle of construction projects "application controlled process". Based on this approach, a framework for an Integrated Construction Environment (ICE) has been developed and implemented in a prototype demonstrator "SPACE" (Simultaneous Prototyping for An integrated Construction Environment). This paper is only concerns with those parts of the ICE which are relevant to the dynamic generation of design drawings. The NIRMANI system aims at generating a schematic design by retrieving previous design solutions that match the problem specification from a multimedia case library. While the Bay Design Systems aims at re-adjusting the produced design solution to minimise construction problems.
keywords	Integrated Environments, Case-Based Design, Project Life Cycle, Integrated Construction Environment
series	CAAD Futures
email
last changed	2003/11/21 15:15

_id	a927
authors	Amirante, Isabella and Bosco, Antonio
year	1995
title	Hypertext Between Research and Teaching: An Experience in a Didactic Building Technology Laboratory
doi	https://doi.org/10.52842/conf.ecaade.1995.003
source	Multimedia and Architectural Disciplines [Proceedings of the 13th European Conference on Education in Computer Aided Architectural Design in Europe / ISBN 0-9523687-1-4] Palermo (Italy) 16-18 November 1995, pp. 3-12
summary	IPER (hypertext for the knowledge of building patrimony) is the result of a research developed with C.N.R. (National Research Institute). The aim of IPER is to provide the knowledge, the description and the management of one or more historical buildings for public or private institutions. IPER allowed us to improve our methodology of building analysis, covering various disciplinary fields, in two different systems. (1.) the first one, synthetic and suitable for a group of historical buildings, (2.) the second one, complex and particularly made for monumental buildings. // This experience is related to the new regulation of teaching architecture in Italy made in 1993. The main novelty is the introduction of the laboratories with the contemporary presence of two or three teachers of different disciplines, working together with the students on the same project with different approaches. This opportunity allowed us to introduce the "knowledge engineer" as a teacher in the laboratory of building technology. IPER is given to the students with the aim of experimenting and solving the theoretical and practical difficulties that students of different years may encounter in the knowledge and representation of buildings and in the organisation of all the data from the case study.
series	eCAADe
more	http://dpce.ing.unipa.it/Webshare/Wwwroot/ecaade95/Pag_1.htm
last changed	2022/06/07 07:54

_id	1a52
authors	Amor, R., Augenbroe, G., Hosking, J., Rombouts and W., Grundy, J.
year	1995
title	Directions in modelling environments
source	Automation in Construction 4 (3) (1995) pp. 173-187
summary	Schema definition is a vital component in the computerised A/E/C projects. existing tools to manage this task are limited both in terms of the scope Of problems they can tackle and their integration with each other. This paper describes a global modellling and development environment for large modelling projects. This environment provides a total solution from initial design of schemas to validation, manipulation arid navigation through final models. A major benefit of the described system is the ability to provide multiple views of evolving schemas (or models) in both graphical and textual forms This allows modellers to visualise their schemas and instance models either textually or graphically as desired. The system automatically maintains the Conisistency of the informalion in these views even when modifications are made in other views. Simple and intuitive view navigation methods allow required information to he rapidly accessed. The environment supports strict checking of model instances and schemas in one of the major ISO-standardised modelling languages no used in product data technology. Ill this paper we show how such a modelling environment has been constructed for evaluation in the JOULE founded COMBINE project.
keywords	Modelling Environment; Consistency; Multiple Views: Views; Building Models; Information Management; Integrated System; Product Modelling
series	journal paper
email
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 14:33

_id	a1be
id	a1be
authors	Andel, J. van
year	1995
title	ENVIRONMENT-BEHAVIOR STUDIES AND DESIGN RESEARCH
source	Oxman, R.M., Bax, M.F.Th., Achten, H.H. (eds.) Design research in the Netherlands, 43-47
series	book
type	normal paper
email
more	http://www.designresearch.nl/PDF/DRN1995_Andel.pdf
last changed	2005/10/12 15:12

_id	c642
authors	Andersen, T. and Carlsen, N.V.
year	1995
title	Software design of maintainable knowledge-based systems for building design
source	Automation in Construction 4 (2) (1995) pp. 101-110
summary	Identifying and establishing a basic structure for knowledge representation is one of the keys to successful design of knowledge-based computer systems. In Building Design and Construction, this initial knowledge structure can be achieved by utilizing a query driven approach to software engineering. As (user) queries reflect the user's demand for in/output, it is natural to link the overall user dialogue with key elements in the knowledge base direct connections between user screen and objects in the knowledge base support prototyping and testing the application during development. However, the price for pursuing this approach in its pure form can be high, as needs for later maintenance and augmentation of the system can be very hard to fulfill. To overcome these problems, a strict user interlace, software separation strategy must be. introduced at early stages of software design. and implemented as a global control module as independent of the knowledge processing as possible.
keywords	Knowledge-based; Query driven: Software design; User interlace: Separation; Maintainable systems
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/06/02 09:35

_id	df4b
authors	Angulo Mendivil, Antonieta Humbelina
year	1995
title	On the Conceptual Feasibility of a CAAD-CAAI Integrated Decision Support System: A Computer Aided Environment for Technical Decision Making in Architecture
source	Delft University of Technology
summary	This document addresses two questions: What are the ultimate means of design support we can offer to the architect, and how can we devise them? We are not the first ones to address these questions, neither the first ones to point our finger in the direction of Decision Support Systems for such purposes. Nevertheless, we may be among those scholars that understanding 'Decision Support" in terms of "Learning Support", are willing to explore the implications that such an understanding assumes for the concept of Decision Support Systems. Our exploration in such regards has shown us that knowledge application and knowledge acquisition cycles describe a continuum, and that such cycles, encapsulated in our "Practice Based Learning" and "Continuing Professional Development" dynamics are present in both our instructional and professional environments. From such a perspective, our scope regarding feasible Decision Support Systems is not restricted to the use of CAAD instrumental resources, but expanded into a context of CAAD-CAAI integration. Throughout this document we conceive a system that blends CAAD and CAAI resources looking forward to the creation of a Support Environment that seeks to motivate a reflective attitude during design, in such a way, upgrade our capability for acquiring as well as applying knowledge in design. In instrumental terms, this document explains how mainstream CAAD developments in the field of "Intelligent Front End Technology" and CAAI developments in the field of "Knowledge-based Curricular Networks" can complement each other in the establishment of a Decision Support System of trans-environmental relevancy. As an application framework for the concept and instrumental base described above, this document presents an image of the kind of decision-making model that it will intend to support, the kind of task support model it will look forward to implement, and the kind of general instrumental layout it will require. On the basis of such an instrumental layout, the system that is hereby outlined can be regarded as a "CAAD-CAAI Integrated", "Intelligent", and "User-Oriented" Interface System.
series	thesis:PhD
email
last changed	2003/02/12 22:37

_id	5236
authors	Arciszewski, T., Michalski, R.S. and Dybala, T.
year	1995
title	STAR methodology-based learning about construction accidents and their prevention
source	Automation in Construction 4 (1) (1995) pp. 75-85
summary	This paper presents the results of a feasibility study concerning the application of STAR-methodology-basedmachine learning to construction accidents and their prevention. A ten-stage knowledge acquisition process is presented and its individual stages described. Knowledge about construction accidents was acquired using a collection of 225 examples, based on actual accidents records. Inductive learning with a system based on the STAR-methodology was employed. This system was used in both the generalization and specialization modes of operation. The decision rules obtained are complex, but their interpretation is clear and they seem to be consistent with the present understanding of causal relationships between accident results and various factors affecting them. Also, the rules were verified using average overall and omission empirical error rates, which were calculated as average for three randomly determined sequences of examples. These error rates were calculated for all seven steps in the machine learning process, and were used to construct learning curves for both error rates. The relationships between error rates and the number of examples used for learning are analyzed, and coefficients of linear regression given and discussed. The 225 examples used were found to be grossly insufficient to produce reliable knowledge about accidents and therefore a large study is postulated which would involve the collection of a larger number of construction accident records. In general, our study demonstrated the feasibility of machine learning in acquiring knowledge about construction accidents.
keywords	Construction accidents and their prevention; Knowledge acquisition; Machine learning; Multi-stepmachine learning process
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/06/02 09:31

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