/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur.Knowledge Acquisition, 1, 4, pp. 379-402, 1989 House calls : building and maintaining a rule-base Ruberg, K.; Cornick, S. M.; James, K. A. A knowledge-acquisition system was designed and built to help an architectural firm automate their diagnosis of building problems. The system was tailored to the firm's database system and building survey method. Rules are generated from the data by the induction learning algorithms ID3 or AQll and the orderly development of the rule-base is ensured by a verification procedure. Architectural diagnostics rely on the expertise of an experienced analyst. Building diagnostic processes require spatial, verbal and numerical reasoning. The rigid data structure imposed by the firm excluded crucial levels of semantic information. Induction methods proved useful tools for organizing data, but the expertise was captured by ad hac editing of the rule-base. This project identified a need in the building industry to develop a taxonomy and a representation to support the building diagnostic process.
/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. Documentation, 44, 2, pp. 91-118, 1988-06 Expert systems and the use of information in building design and construction Davidson, C. H.; Davidson, P. L.; Ruberg, K. Journal of Institute for Research in Construction, ~atidnal Research Council of CanadaThe building industry, through its structure and its mandate, faces endemic infonnation problems; expert systems are expected to impact positively. Expert systems arc suited to situations of uncertainty; knowledge and reasoning are separated, allowing easier updating. Knowledge acquisition from human experts is difficult and problems of information reliability arise, suggesting the scope for cooperation between knowledge engineers and documentalists familiar with the domain. In building. prevailing conditions seem to indicate the appropriateness of expert systems, particularly during the design phase; however, written documentation and general research results are rarely consulted. TbThi a highlights the need for an information 'refining' stage between production and use. It is easier to set up expert systems for specialised subdomains; however, on-going research is attempting to develop a comprehensive approach to project-specific information that would be operational from initial design through to completed construction. Criteria for a comprehensive design information system can be listed. Organisation. The building industry, in management jargon, is a 'multiindustry', and each building project is undertaken by a 'temporary multiorganization' [I]. The industry as a whole consists of a large number of enterprises, both professional and consultant practices, and manufacturing and construction companies. Each of them exists over a long period of time, but must form a team with others for short periods to participate in particular building projects. Long-term survival depends on a proper sequence of shortterm activities. As a result, each firm has its own long-term modus operandi and its own ways of ensuring its presence on the market place; it develops and maintains some form of in-house information system, if only to record its acquired experience. Also, each short-term project team must develop effective coordination, by contract and by inducement, so that the firms called upon to work together (and who may never have worked together before), produce the required building within the imposed constraints; within the short time span, a project-specific information system must be...
and Kalev Ruberg, NRCC, report on the CIB survey of educational establishments showing that information science and information management is taught in less than half the programmes surveyed, and discuss the difficult task of the acquisition of expert information, as well as the need to match information provided with practitioners' real needs. 'étude dun CIB sur les établissements éducatifs qui montre que la science et la gestion de l'information ne sont enseignées que dans moins de 50% des programmes recensés et montrent la difficulté qu'il y a à acquérir des informations expertes, ainsi que la nécessité de marier les informations offertes avec les besoins réels des professionnels.
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