摘要:

Abstract:Many organizations today have an interest in communications networks, either as users of public networks or as operators of their own private networks. Thus, the management of communications networks has become an important issue in the communications industry. The network design task is fundamental to the whole notion of network management; however, with the rapid rate of change in network technology and the emergence of highly sophisticated network users, network design has become an increasingly complex problem.The purpose of this paper is to describe a development effort which incorporates expert systems techniques to treat one aspect of the network design problem—the initial planning and design of a network prior to implementation. The research effort was concerned with developing an expert system for Amdahl Communications Products which could be used by sales engineers in designing wide area networks to meet specified customer requirements. The system treats both the topological design problem and the component configuration proble

ISSN:0266-4720    

DOI:10.1111/j.1468-0394.1992.tb00380.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

Abstract:Electronics manufacturing is the fastest growing segment of the manufacturing domain today. The rapid change in printed circuit board manufacturing has been possible with the induction of surface‐mounted components and robotic assembly. The high density packaging capability of surface‐mounted technology has contributed enormously to the development of new trends in printed circuit board manufacturing.PCAAD—Printed Circuit Board Assembly Advisor—is an expert system developed to capture this new technology and its interaction with the existing through‐hole‐mounting technology. In building the system, rules and guidelines pertaining to assembly are formulated and incorporated into the knowledge‐base. The system is built on an object‐oriented paradigm. The object‐oriented approach, Smalltalk‐80, the object‐oriented language and the hierarchical rule structure paradigm are briefly discussed. A rating system is also introduced to rank various assembly designs. PCAAD can advise whether or not to proceed with assembly with a particular assembly design, and suggests assembly modification at the early stage of design to eliminate the assembly problems in the later phas

ISSN:0266-4720    

DOI:10.1111/j.1468-0394.1992.tb00381.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

Abstract:Knowledge engineers often find that experts’ estimates of uncertainty change from one day to the next and therefore often seem unreliable. This article explores the unreliability of probability estimates. Forty undergraduates answered 31 questions concerning the probability of daily events at two separate times. Three answer modalities were available: probability, chances and percent of the time. This paper finds that reliability decreases when answer modalities change from one time to the next. It is hypothesized that problem‐solving approaches changed along with the modalities. The subjects represented a wide range in reliability, with the most reliable subjects changing answer modalities less than the unreliable subjects. These results suggest that knowledge engineers should endeavor to have experts express their uncertainty estimates using consistent modalit

ISSN:0266-4720    

DOI:10.1111/j.1468-0394.1992.tb00382.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

Abstract:Developing a prototype can be crucial to the eventual success of an expert system. This paper describes an evaluation of four expert system tools that can be used for prototyping. It outlines the evaluation method used and details findings, considering hardware and software requirements, tool features, support for development and consultation, and overall suitability for prototyping an expert system application.

ISSN:0266-4720    

DOI:10.1111/j.1468-0394.1992.tb00383.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

ISSN:0266-4720    

DOI:10.1111/j.1468-0394.1992.tb00384.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

ISSN:0266-4720    

DOI:10.1111/j.1468-0394.1992.tb00385.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

Book reviewed in this article:The Craft of Prolog, Richard A. O'KeefeObject‐Oriented Programming with Smat It al k/V, Dusko Sav

ISSN:0266-4720    

DOI:10.1111/j.1468-0394.1992.tb00386.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY