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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Hits 1 to 20 of 550

_id f448
authors Hermann, M., Kohler, N., Koenig, H. and Luetzkendorf, T.
year 1998
title CAAD System with Integrated Quantity Surveying, Energy Calculation, and LCA
source Proceedings: Green Building Challenge 98, Vancouver, Canada. Vol. 2, 68 - 75
summary In the framework of the German LEGOE project, an integrated tool is developed for computer aided architectural design (CAAD), quantity surveying (catalogue of building elements), life cycle cost calculation and estimation (construction and refurbishment), direct energy consumption (heating, hot-water, electri-city) and environmental impact assessment (mass flows and effect oriented evaluation). During the design process the architect works in his usual CAAD environment with building elements (e.g. one m2 of outer wall) which in turn are composed of detailed construction specifications, energy and mass flow coefficients and cost data. These elements are part of an independent catalogue of elements with all their relevant data. The different application programs use the same basic data and write the specific results into a project-specific database called a PDB which allows the comparison of these data to reference data from other projects. Evaluation and visualisation programs refer to the PDB only.
series other
last changed 2003/04/23 15:50

_id ddss9826
id ddss9826
authors Hendricx, A., Geebelen, B., Geeraerts, B. and Neuckermans, H.
year 1998
title A methodological approach to object modelling in the architectural designprocess
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 paper describes a first prototype constructed in search for a central object model. It presents all possible data, concepts and operations concerning the architectural design process in the early phases.A central model of the process of design is essential: going from one design phase into another, the model describes geometrical shapes, abstract concepts like space and activity, concrete physical building elements and the basic operations all these entities undertake. Emphasis is put on combining all these different viewpoints, thus enabling the designer to use a broad range of design strategies. The aim is to help him and not steer or even hamper his creative process. Information necessary toassist the user of the system concerning energy calculation, stability checks etc can be extracted. By means of appropriate interfaces not only those tests built on top of the system but also existing software packages can make use of the model’s object structure. The implemented object model is one of the cornerstones of the IDEA+ project, aiming to provide an Integrated Design Environment for Architecture.
keywords object model, building model, CAAD, IDEA+, MERODE
series DDSS
last changed 2003/08/07 16:36

_id abed
authors Frazer, John Hamilton and Tang, Ming Xi
year 1998
title Development of an Integrated Design System
doi https://doi.org/10.52842/conf.caadria.1998.473
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. 473-482
summary The School of Design in the Hong Kong Polytechnic University is developing advanced computer-based design systems by integrating Artificial Intelligence and evolutionary computing techniques with CAD/CAAD systems. Applications embrace architectural and environmental design as well as interior, industrial, fashion, graphic, and photographic design. The integration of the design systems developed in these domains provides a good basis for building a virtual design studio in collaboration with leading design research centres and institutions around the world. This virtual design studio is intended as a powerful computational environment for the integration of Asian cultural values with modern interdisciplinary design technologies.
keywords AI, Generative Techniques, Evolutionary Techniques, Virtual Studio
series CAADRIA
email
more http://www.caadria.org
last changed 2022/06/07 07:50

_id ddss9808
id ddss9808
authors Boelen, A.J.
year 1998
title Pattern Matching for Decision Support
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 In this paper is discussed how we can use pattern matching techniques in combination with object orientation to support decision makers in arranging offices and industrial and commercial facilities in existing urban areas. The method used is based on the findings of a Ph.D. project almost finishedwhen writing this. The tool under development is specifically useful for rehabilitation of deteriorated industrial or commercial areas.I consider such an area already occupied and surrounded with all kinds of urban objects and connected to all kinds of infrastructure. I can describe this area in available objects and facilities. Furthermore we can describe the areas capacity left within the infrastructure, the capacity in forexample work force or clients and the available band width in noise or pollution. By describing the area in terms of availability of capacity to absorb or produce flows of people, goods, energy and information we sketch the room available for certain types of industrial or commercial facilities. I developed a technique to describe industrial and commercial facilities in such a way that we enable the match between these and the characteristics of an area available. Pattern matching techniquesenable the system to generate best matches between available areas, locations and facilities. This model can be adapted in several object oriented geographical information systems and be integrated with other information systems that for example calculate the pollution of certain kinds of facilities. The rules to match with are partly based on objective, measurable data like available capacity on the electricity network and needed electrical power for certain facilities. Other matching rules are based on political norms on for example acceptable pollution levels and suggested pollution of facilities. The paper presents the problem area of industrial area rehabilitation, describes the architecture of the modeling technique and presents the first findings of implementation studies.
keywords Pattern matching, Object GIS, Urban object modeling, Facility planning
series DDSS
last changed 2003/11/21 15:16

_id ddss9823
id ddss9823
authors Groot, E.H. de and Pernot, C.E.E.
year 1998
title Energy Impact Knowledge-based System project:Outcomes of the Netherlands Workshops
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 Overcoming barriers in the current building process that hinder the realisation of optimal energy efficiency in buildings is the aim of the Energy Impact Knowledge-based System [EIKS] project. During this project, a demo-version of a knowledge based assistive information and decision supportsystem was developed, considering the design and evaluation of integrated daylight and artificial lighting systems for office rooms. Twenty workshops with building experts were carried out in four European countries. The first set of sixteen workshops delivered the specifications of the system.During the second set of four workshops, this prototype was shown to some of the building experts who had attended one of the workshops of the first series. The outcomes of the first series EIKS workshops were very general and not really specifying the EIKS-prototype as expected. However, from the generally enthusiastic response of participants during the second workshop series it can be concluded that the prototype is a good basis for further development.
series DDSS
last changed 2003/08/07 16:36

_id acadia03_047
id acadia03_047
authors Martens, B., Brown, A. and Turk, Z.
year 2003
title Automated Classification of CAAD-related Publications: Conditions for Setting-Up a Keywording System
doi https://doi.org/10.52842/conf.acadia.2003.365
source Connecting >> Crossroads of Digital Discourse [Proceedings of the 2003 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-12-8] Indianapolis (Indiana) 24-27 October 2003, pp. 365-371
summary This paper deals with the CUMINCAD-repository (Cumulative Index on CAD), which was set up in 1998 and has served the CAAD-community since then as an important source of archived domain related information. CUMINCAD contains over 5,000 entries in the form of publications in the field of Computer Aided Architectural Design. The number has been growing steadily over the years. To date only advanced search mechanisms have been provided to access these works. This may work out well for a just-in-time location of a reference, but is inadequate for just in case browsing through the history of CAAD. For such applications, a hierarchical browsing interface, like one in Yahoo or DMOZ.org is envisioned. This paper describes how the keyword categories were defined and how a moderate, distributed effort in defining the categories will allow machine-identified classification of the entire data set. The aim of the paper is to contribute to building up a wide spread consensus on what the appropriate keyword categories in CAAD are, and what sub-topics should sit below the main keyword categories.
keywords Web-based Bibliographic Database; Searchable Index; CAAD Research; Classification
series ACADIA
email
last changed 2022/06/07 07:59

_id cf2009_poster_43
id cf2009_poster_43
authors Oh, Yeonjoo; Ellen Yi-Luen Do, Mark D Gross, and Suguru Ishizaki
year 2009
title Delivery Types And Communication Modalities In The Flat-Pack Furniture Design Critic
source T. Tidafi and T. Dorta (eds) Joining Languages Cultures and Visions: CAADFutures 2009 CD-Rom
summary A computer-based design critiquing system analyzes a proposed solution and offers critiques (Robbins 1998). Critiques help designers identify problems as well as opportunities to improve their designs. Compared with human critics, today’s computer-based critiquing systems deliver feedback in quite restricted manner. Most systems provide only negative evaluations in text; whereas studio teachers critique by interpreting the student’s design, introducing new ideas, demonstrating and giving examples, and offering evaluations (Bailey 2004; Uluoglu 2000) using speech, writing, and drawing to communicate (Anthony 1991; Schön 1983). This article presents a computer-based critiquing system, Flat-pack Furniture Design Critic (FFDC). This system supports multiple delivery types and modalities, adapting the typical system architecture of constraint-based intelligent tutors (Mitrovic et al. 2007).
keywords Critiquing system, design critiquing
series CAAD Futures
type poster
email
last changed 2009/07/08 22:12

_id 650c
authors Porada, S.
year 1998
title Ouvoir - Of the Potential Architecture
source Cyber-Real Design [Conference Proceedings / ISBN 83-905377-2-9] Bialystock (Poland), 23-25 April 1998, pp. 155-161
summary Calculations are used to forecast urban flows of population, development of various activities, demography, and many other architectural programme constrains, and have been spontaneously the first field of computer intervention in urban and architectural project design. By analogy to engineering where computation is the base of decision making, architectural design process is seen as a problem solving process. <> constrains computer aided computation is seen as Computer Aided Architectural Design, CAAD. This way, a technological utopia called CAD in architecture is born. Nevertheless, the review of architectural design methods has clearly shown that programmatic models, since they are only used to evaluate spatial hypothesis, and do not have in themselves space production potentialities. In spite of the powerful methodological movement of the sixties, that have established this design constellation, the misunderstanding persists until now. Architect is a gestural and visual being. By using simultaneously metaphor, gesture and calculation, he calls for all his experiences and sensibility to realise plastic and poetic synthesis of form. To remedy to the major problem of the form synthesis, graphical instruments have been proposed. Why not utilise tools used in the field of engineering as computer aided drafting ? And so, computer aided drafting triumphaly entered the architectural design process. But, computer aided drafting is commonly seen as an instrument used on the - projection - stage, where drawings are produced for an already designed object. A new myth that assimilate architectural design to the drawing production activity arrives with the <>, containing thousands of drawings. All this aimed to facilitate, as it is proclaimed, communication between all the intervening in the project.
series plCAD
last changed 1999/04/08 17:16

_id a5cd
authors Sasada, T., Yamaguchi, S., Morozumi, M., Kaga, A. and Homma, R. (Eds.)
year 1998
title CAADRIA ‘98 [Conference Proceedings]
doi https://doi.org/10.52842/conf.caadria.1998.
source Proceedings of The Third Conference on Computer Aided Architectural Design Research in Asia / ISBN 4-907662-009 / Osaka (Japan) 22-24 April 1998, 482 p.
summary Recent progress in hardware and software technology for CAAD systems offer new challenges and opportunities to architects and design educators in aspects such as modeling systems for sketching and design evaluation; knowledge bases as a source of design thinking; network or CD-ROM image banks of design archives; video-conferencing to support geographically distributed interdisciplinary collaboration; etc. Despite expectations that CAAD system would support creative and productive design processes more effectively than those in a traditional design studio, their contributions to architectural design practice and design education still seem to be limited. The fault is, in part, that there are many designers and educators who have yet to experience designing in the medium (as opposed to simply drafting) and partly because digital design tools and technologies have still to be developed or to be integrated to a process of designers' activities. Clearly there are opportunities for further efforts to explore and develop better CAAD technologies as well as to demonstrate and prove possible impact of their application on design practice and design education.
series CAADRIA
email
more http://www.caadria.org
last changed 2022/06/07 07:57

_id 4c8a
authors Ball, L.J., Maskill, L. and Ormerod, T.C.
year 1998
title Satisficing in engineering design: causes, consequences and implications for design support
source Automation in Construction 7 (2-3) (1998) pp. 213-227
summary We describe an approach to investigating design cognition which involved comparing prescriptive theories of good design practice with observations of actual design behaviour. The tenet of prescriptive theory which formed the focus of the research is the idea that designers should generate and evaluate multiple design alternatives in order to increase the chances of attaining better design solutions than might arise if they fixated upon an initial solution. Our study focused upon six professional electronic engineers attempting a novel integrated-circuit design problem. Verbal-protocol data revealed: (i) a failure to search for alternative solutions; (ii) a marked inclination to stick with early `satisficing' solution ideas even when these were showing deficiencies; and (iii) only superficial modelling and assessment of competing alternatives when such options were actually considered. We argue that while minimal solution search in design may sometimes be caused by motivational factors and working-memory limitations, its major determinant relates to inhibitory memory processes that arise subsequent to the recognition-based emergence of familiar design solutions. We conclude by exploring the implications of minimal solution search for design support, with particular reference to an agent-based indexing system which we are developing in order to facilitate the pursuit of design alternatives in engineering contexts.
series journal paper
more http://www.elsevier.com/locate/autcon
last changed 2003/05/15 21:22

_id 7a20
id 7a20
authors Carrara, G., Fioravanti, A.
year 2002
title SHARED SPACE’ AND ‘PUBLIC SPACE’ DIALECTICS IN COLLABORATIVE ARCHITECTURAL DESIGN.
source Proceedings of Collaborative Decision-Support Systems Focus Symposium, 30th July, 2002; under the auspices of InterSymp-2002, 14° International Conference on Systems Research, Informatics and Cybernetics, 2002, Baden-Baden, pg. 27-44.
summary The present paper describes on-going research on Collaborative Design. The proposed model, the resulting system and its implementation refer mainly to architectural and building design in the modes and forms in which it is carried on in advanced design firms. The model may actually be used effectively also in other environments. The research simultaneously pursues an integrated model of the: a) structure of the networked architectural design process (operators, activities, phases and resources); b) required knowledge (distributed and functional to the operators and the process phases). The article focuses on the first aspect of the model: the relationship that exists among the various ‘actors’ in the design process (according to the STEP-ISO definition, Wix, 1997) during the various stages of its development (McKinney and Fischer, 1998). In Collaborative Design support systems this aspect touches on a number of different problems: database structure, homogeneity of the knowledge bases, the creation of knowledge bases (Galle, 1995), the representation of the IT datum (Carrara et al., 1994; Pohl and Myers, 1994; Papamichael et al., 1996; Rosenmann and Gero, 1996; Eastman et al., 1997; Eastman, 1998; Kim, et al., 1997; Kavakli, 2001). Decision-making support and the relationship between ‘private’ design space (involving the decisions of the individual design team) and the ‘shared’ design space (involving the decisions of all the design teams, Zang and Norman, 1994) are the specific topic of the present article.

Decisions taken in the ‘private design space’ of the design team or ‘actor’ are closely related to the type of support that can be provided by a Collaborative Design system: automatic checks performed by activating procedures and methods, reporting of 'local' conflicts, methods and knowledge for the resolution of ‘local’ conflicts, creation of new IT objects/ building components, who the objects must refer to (the ‘owner’), 'situated' aspects (Gero and Reffat, 2001) of the IT objects/building components.

Decisions taken in the ‘shared design space’ involve aspects that are typical of networked design and that are partially present in the ‘private’ design space. Cross-checking, reporting of ‘global’ conflicts to all those concerned, even those who are unaware they are concerned, methods for their resolution, the modification of data structure and interface according to the actors interacting with it and the design phase, the definition of a 'dominus' for every IT object (i.e. the decision-maker, according to the design phase and the creation of the object). All this is made possible both by the model for representing the building (Carrara and Fioravanti, 2001), and by the type of IT representation of the individual building components, using the methods and techniques of Knowledge Engineering through a structured set of Knowledge Bases, Inference Engines and Databases. The aim is to develop suitable tools for supporting integrated Process/Product design activity by means of a effective and innovative representation of building entities (technical components, constraints, methods) in order to manage and resolve conflicts generated during the design activity.

keywords Collaborative Design, Architectural Design, Distributed Knowledge Bases, ‘Situated’ Object, Process/Product Model, Private/Shared ‘Design Space’, Conflict Reduction.
series other
type symposium
email
last changed 2005/03/30 16:25

_id 6279
id 6279
authors Carrara, G.; Fioravanti, A.
year 2002
title Private Space' and ‘Shared Space’ Dialectics in Collaborative Architectural Design
source InterSymp 2002 - 14th International Conference on Systems Research, Informatics and Cybernetics (July 29 - August 3, 2002), pp 28-44.
summary The present paper describes on-going research on Collaborative Design. The proposed model, the resulting system and its implementation refer mainly to architectural and building design in the modes and forms in which it is carried on in advanced design firms. The model may actually be used effectively also in other environments. The research simultaneously pursues an integrated model of the: a) structure of the networked architectural design process (operators, activities, phases and resources); b) required knowledge (distributed and functional to the operators and the process phases). The article focuses on the first aspect of the model: the relationship that exists among the various ‘actors’ in the design process (according to the STEP-ISO definition, Wix, 1997) during the various stages of its development (McKinney and Fischer, 1998). In Collaborative Design support systems this aspect touches on a number of different problems: database structure, homogeneity of the knowledge bases, the creation of knowledge bases (Galle, 1995), the representation of the IT datum (Carrara et al., 1994; Pohl and Myers, 1994; Papamichael et al., 1996; Rosenmann and Gero, 1996; Eastman et al., 1997; Eastman, 1998; Kim, et al., 1997; Kavakli, 2001). Decision-making support and the relationship between ‘private’ design space (involving the decisions of the individual design team) and the ‘shared’ design space (involving the decisions of all the design teams, Zang and Norman, 1994) are the specific topic of the present article.

Decisions taken in the ‘private design space’ of the design team or ‘actor’ are closely related to the type of support that can be provided by a Collaborative Design system: automatic checks performed by activating procedures and methods, reporting of 'local' conflicts, methods and knowledge for the resolution of ‘local’ conflicts, creation of new IT objects/ building components, who the objects must refer to (the ‘owner’), 'situated' aspects (Gero and Reffat, 2001) of the IT objects/building components.

Decisions taken in the ‘shared design space’ involve aspects that are typical of networked design and that are partially present in the ‘private’ design space. Cross-checking, reporting of ‘global’ conflicts to all those concerned, even those who are unaware they are concerned, methods for their resolution, the modification of data structure and interface according to the actors interacting with it and the design phase, the definition of a 'dominus' for every IT object (i.e. the decision-maker, according to the design phase and the creation of the object). All this is made possible both by the model for representing the building (Carrara and Fioravanti, 2001), and by the type of IT representation of the individual building components, using the methods and techniques of Knowledge Engineering through a structured set of Knowledge Bases, Inference Engines and Databases. The aim is to develop suitable tools for supporting integrated Process/Product design activity by means of a effective and innovative representation of building entities (technical components, constraints, methods) in order to manage and resolve conflicts generated during the design activity.

keywords Collaborative Design, Architectural Design, Distributed Knowledge Bases, ‘Situated’ Object, Process/Product Model, Private/Shared ‘Design Space’, Conflict Reduction.
series other
type symposium
email
last changed 2012/12/04 07:53

_id ddss9810
id ddss9810
authors Celebi, Gulser
year 1998
title Development of a Building System
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 universal principle of architecture can be defined as follows: “The architectural product is the synthesis of the different man-made physical environments that are formed by locating the series of building components in different ways”. Within this context; it is necessary to determine the principle of building assembly and the assembly of ‘material components’ in order to produce the building. The material components are the elements of sub systems (such as; structural, envelope, services, partitions, circulation, and finishing systems) which form the building system of an architectural product. Every building is an integrated product. Integration defines the relations of sub systems with the whole. Therefore, it is necessary to define the sub systems and their relations in realizing the architectural product. This paper presents the analysis principles of the sub-systems, relationship between the analyzed systems and components, integration principles and possibilities of them, and the future conditions.
series DDSS
last changed 2003/08/07 16:36

_id ad5b
authors Chu, K.
year 1998
title Genetic Space
source A.D.: Architects in Cyberspace II, vol.68, no.11-12, pp.68-73
summary The twentieth century is the century of convergence. No other century has witnessed the development and profusion of new ideas as the twentieth century, and no other century has experienced the range and scope of events that transpired globally to the extent as this century. Various historical formations and discoveries, unleashed by the Enlightenment, have profoundly changed and transformed the course of human civilization and lead to the maturation of the idea of modernity in this century. With two years left to the start of the next millennium, we are experiencing the effects of modernity that have channeled powerful innovations into the dawn of a new era that could lead, potentially, beyond modernity. More than anything, it signals one of the major premises of the enlightenment to radicalize the substance of nature through the substance of reason and, thereby, altering the modality of the cultural universe of humanity into a genuine cosmopolitical concept. The synthesis of energy, matter and information into a three-parameter system of explanation has created conditions that allow us to think the unthinkable and extend our imagination to the limits of the conceivable. Modernity, from a metaphysical standpoint, brings to light the concept of a transcendental reason that aims to clarify the conditions of possibility for reason as an apriori given. As a consequence, it paved the way for a systemic constitution of a cosmic concept of reason that partakes in the arrival of alien intelligence and one that seems destined to project itself into an ontological domain of its own making. If modernity is an unfinished project, as claimed by some, its program is, nonetheless, being transformed into a cosmogenetic principle where synthesis is the pre-eminent outcome of a return to a second nature, i.e., a transcendent concept of nature. Even though the transcendental dialectic of critical reason is directed towards the timeless unity of the unconditioned, the genitive logic implicit within cosmic reason, itself a form of recursive self-propelling intelligence, appears to be animated by a projective force capable of engendering and pro-creating in the evolutionary sense of the term.
series other
last changed 2003/04/23 15:50

_id 1beb
authors Coomans, M.K.D. and Timmermans, H.J.P.
year 1998
title A VR User Interface for Design by Features
source Timmermans (ed.) Proceedings of the 4th Conference on Design and Decision Support Systems in Architecture and Urban Planning, Maastricht
summary We present the design of a Virtual Reality based user interface (VR-UI). It is the interface for the VR-DIS system, a design application for the Building and Construction industry (VRDIS stands for Virtual Reality - Design Information System). The interface is characterised by a mixed representation of the task domain: an analogue "mock-up view" is being integrated with a descriptive "feature view". It uses a Fish Tank VR configuration which integrates the virtual objects in the designer's normal working environment. The issues underlying the design of the feature view are discussed, as well as the choice of input devices.
series other
last changed 2003/04/23 15:50

_id ddss9812
id ddss9812
authors Coomans, M.K.D. and Timmermans, H.J.P.
year 1998
title A VR-User Interface for Design by Features
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 We present the design of a Virtual Reality based user interface (VR-UI). It is the interface for the VR-DIS system, a design application for the Building and Construction industry (VRDIS stands for Virtual Reality - Design Information System). The interface is characterised by a mixedrepresentation of the task domain: an analogue “mock-up view” is being integrated with a descriptive “feature view”. It uses a Fish Tank VR configuration which integrates the virtual objects in the designer’s normal working environment. The issues underlying the design of the feature view are discussed, as well as the choice of input devices.
series DDSS
last changed 2003/08/07 16:36

_id 38af
authors Demirkan, H.
year 1998
title Integration of reasoning systems in architectural modeling activities
source Automation in Construction 7 (2-3) (1998) pp. 229-236
summary In the first phase of a design process, the designer understands the problem and assimilates it to a conceptual framework that is already known to him. Due to the nature of design problems, the reasoning methods and techniques for modeling are not uniform and clear. An integrated reasoning system is proposed for modeling the architectural processes. Such a system may help designers to make decisions based on past experiences as well as domain theory. The performance of the integration approach is compared with the pure case-based and rule-based reasoning systems to study the efficiency and effectiveness in the same domains. The study tried to identify the reasoning systems used by designers pertaining to the interior design applications.
series journal paper
more http://www.elsevier.com/locate/autcon
last changed 2003/05/15 21:22

_id 07d8
authors Garza, J.M. de la and Howitt, I.
year 1998
title Wireless communication and computing at the construction jobsite
source Automation in Construction 7 (4) (1998) pp. 327-347
summary For many years, the walkie-talkie has been synonymous with the construction industry. During jobsite project execution, there are three variables which can either hinder or facilitate successful results, namely, quality, quantity, and timing of information. Wireless data communications technology is capable of delivering just-in-time information within the `last mile' between the trailer and a desired location on the jobsite. This paper reports on a study which surveyed information needs at the jobsite, emerging wireless data communications technology, and assessed the extent to which wireless data technology can fulfill the information needs of the jobsite [J.M. de la Garza, I. Howitt, Wireless communication and computing at the jobsite, Research Report 136-11, Construction Industry Institute, Austin, TX, 1997]. We have organized jobsite information needs into the following ten categories: (a) requests for information, (b) materials management, (c) equipment management, (d) cost management, (e) schedule and means and methods, (f) jobsite record keeping, (g) submittals, (h) safety, (i) QC/QA, and (k) future trends. Each category was analyzed in terms of its appropriateness to take advantage of wireless technology. The four formats considered to transmit information wirelessly were: (a) live voice, (b) live video, (c) batched data, and (d) live data. Current wireless communication technology has been classified into the following five classes: (a) circuit-switched wireless data systems, (b) packet-switched wireless data systems––this class was further subdivided into specialized mobile radio systems and cellular digital packet data systems, (c) wireless local area networks, (d) paging systems, and (e) satellite-based data communications. A primer for wireless communications covering both fundamental and advanced communications concepts has also been included to enable a better understanding of the issues involved in making trade-offs while configuring a wireless jobsite communication system. The example presented in this paper shows how a contractor can define a subset of information needs by choosing from those already articulated herein and determine if a given wireless technology should even be considered as a viable way of meeting the information needs that such company has.
series journal paper
more http://www.elsevier.com/locate/autcon
last changed 2003/05/15 21:22

_id 2587
authors Gong, Yihong
year 1998
title Intelligent image databases
source Boston, Kluwer
summary Intelligent Image Databases: Towards Advanced Image Retrieval addresses the image feature selection issue in developing content-based image retrieval systems. The book first discusses the four important issues in developing a complete content-based image retrieval system, and then demonstrates that image feature selection has significant impact on the remaining issues of system design. Next, it presents an in-depth literature survey on typical image features explored by contemporary content-based image retrieval systems for image matching and retrieval purposes. The goal of the survey is to determine the characteristics and the effectiveness of individual features, so as to establish guidelines for future development of content-based image retrieval systems. Intelligent Image Databases: Towards Advanced Image Retrieval describes the Advanced Region-Based Image Retrieval System (ARBIRS) developed by the authors for color images of real-world scenes. They have selected image regions for building ARBIRS as the literature survey suggests that prominent image regions, along with their associated features, provide a higher probability for achieving a higher level content-based image retrieval system. A major challenge in building a region-based image retrieval system is that prominent regions are rather difficult to capture in an accurate and error-free condition, particularly those in images of real-world scenes. To meet this challenge, the book proposes an integrated approach to tackle the problem via feature capturing, feature indexing, and database query. Through comprehensive system evaluation, it is demonstrated how these systematically integrated efforts work effectively to accomplish advanced image retrieval. Intelligent Image Databases: Towards Advanced Image Retrieval serves as an excellent reference and may be used as a text for advanced courses on the topic.
series other
last changed 2003/04/23 15:14

_id ddss9831
id ddss9831
authors Kellett, Ronald and Girling, Cynthia
year 1998
title Informing Public Participation in Neighborhood ScalePlanning and Design
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 Neighborhood scale planning and design in many areas of the United States has been evolving toward a system of negotiated priorities and agreements. Common models include public workshops and design 'charrettes' which bring diverse stakeholders (citizens, land owners, developers, consultantsand public officials, for example) together to develop a mutually acceptable plan. Crucial to the quality and effectiveness of the outcome are decision support tools that help this diverse audience understand, communicate, collaborate and make decisions about complex and often emotional issuesof land use and design. Net Energy Communities (NEC), the project summarized in this paper, creates a suite of computer based tools for this purpose. NEC links three types of computer software — the spatial data manipulation, modeling and visualization capabilities of Geographic Information Systems (GIS), the illustration and information retrieval capabilities of multimedia relational databases and, the simulation and comparison capabilities of spreadsheet-based calculation models;into four tools — a site modeller, an elements of neighborhood database, a scenario modeller and ascenario calculator. This paper reports on the NEC project as an example of decision support tools for public participation using illustrations and examples from a 420 acre demonstration neighborhood design in progress for the City of Corvallis, Oregon, USA.
series DDSS
last changed 2003/08/07 16:36

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