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IEEE Expert

Issue 3 • Date Fall 1989

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Displaying Results 1 - 6 of 6
  • Scheduling semiconductor wafer production: an expert system implementation

    Page(s): 9 - 15
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2117 KB)  

    A flexible environment for the production of semiconductor wafers is described. This facility currently manufactures over 300 wafer products. Each product follows a different route through a series of discrete processing operations, more than 150 of which take place in the facility. An expert system approach to scheduling, which efficiently utilizes the processing equipment within each cell while meeting overall due dates of all wafer lots, is detailed. The results obtained with the expert system and its applicability are evaluated.<> View full abstract»

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  • Knowledge systems for planning support

    Page(s): 16 - 23
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1600 KB)  

    The nature of organizational planning is examined, and the status of planning research is discussed. Several major recurrent technical hurdles that have emerged in planning research, and for which satisfactory solutions have yet to be found are identified. To circumvent these problems and accelerate the near-term availability of intelligent planning aids, an alternative approach is suggested. It consists of bifurcating planning research by decoupling the problem-solving component of planning systems from the knowledge-representation and plan-evaluation components. This allows the development of interactive planning systems in which humans play the role of problem solver and machines assist by analyzing, monitoring, and refining plans initiated by humans. Eventually, as research on problem-solving methods matures, it should be possible to recouple this component gradually to achieve true system autonomy.<> View full abstract»

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  • A knowledge-based expert system for computer-assisted indexing

    Page(s): 25 - 38
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1560 KB)  

    A description is given the MedIndEx system, formerly known as the Indexing Aid (expert) system, which is currently under development. The objective of this project is to automate indexing of medical literature as much as possible by assisting indexers in selecting index terms and applying indexing rules, thereby facilitating expert indexing. Conventional thesaurus-based indexing is examined, followed by an explanation of knowledge representation using frames. Computer-assisted indexing with MedIndEx is then examined. The project's status and future plans are indicated.<> View full abstract»

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  • CL: a flexible and efficient tool for constructing knowledge-based expert systems

    Page(s): 41 - 50
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1919 KB)  

    A description is given of CL, the conceptual network-based language, which is a Lisp-based tool kit to assist knowledge engineers in customizing a general framework into an optimal one for a specific domain and achieving high runtime performance with user-defined control strategies. The design objectives embodied in CL are discussed, and its extensibility and domain language primitives are examined. It is shown how the use of CL can improve runtime performance. Experience with CL and its current status are described.<> View full abstract»

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  • ISHYS: designing an intelligent software hypertext system

    Page(s): 52 - 63
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    The authors describe the design of ISHYS, an intelligent software hypertext system, and discuss novel applications that such a system can support. In designing ISHYS, they sought to support the software life cycle from a 'web of computing' framework, which necessarily requires the consideration of sociotechnical factors influencing and influenced by the software life cycle. ISHYS supports functionalities that include influencing work interactions on the basis of social interactions and determining tools and their options on the basis of project status information. Implementation of required enhancements to DIF (documents integration facility), the authors' current software hypertext system, has been completed using Prolog, C, and X Windows.<> View full abstract»

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  • KADBASE: interfacing expert systems with databases

    Page(s): 65 - 76
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1140 KB)  

    KADBASE, a knowledge-aided database management system prototype, is a flexible interface in which multiple databases and knowledge-aided database systems can communicate as independent, self-descriptive components within a loosely coupled distributed engineering computer system. The authors describe the final architecture of their working prototype, demonstrate its use in engineering applications, and provide examples from two civil engineering knowledge-based systems: SPEX, a structural component design system, and HICOST, a building-cost estimator.<> View full abstract»

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Aims & Scope

This Periodical ceased production in 1997. The current retitled publication is IEEE Intelligent Systems.

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