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Intelligent Systems Engineering

Issue 2 • Date Summer 1994

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Displaying Results 1 - 4 of 4
  • Distributed approach to dynamic resource management based on temporal influence

    Publication Year: 1994 , Page(s): 79 - 86
    Cited by:  Papers (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (580 KB)  

    The paper describes an approach to resource management in uncertain domains, which is based on the concept of temporal influence. The Distributed Interactive Scheduling with Abstractions Project is aimed at building a scheduling system designed to address the uncertainties of real-world domains. The system has two main features; it is distributed, taking a multi-agent view, and it uses a solution method that employs temporal abstractions to aid decision-making. The multi-agent view is a novel architecture based on a hierarchical representation of time and a dynamic heterogenetic structure for problem-solving agents. Temporal abstractions in the form of summarisations and generalisations are used for problem reduction and conflict resolution, providing a second novel idea. An additional goal of this project is to provide the user with the environment and information necessary to allow useful and intelligent interaction with the problem-solving process. Temporal abstractions also play an important role in the satisfaction of this goal View full abstract»

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  • Implementation of resource constraints in ILOG SCHEDULE: a library for the development of constraint-based scheduling systems

    Publication Year: 1994 , Page(s): 55 - 66
    Cited by:  Papers (3)  |  Patents (2)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (936 KB)  

    It has been argued that the use of constraint-based techniques and tools enables the implementation of precise, flexible efficient and extensible scheduling systems; precise and flexible as the system can take into account any constraint expressible in the constraint language; efficient in as much as highly optimised constraint propagation procedures are now available; extensible as the consideration of a new type of constraint may require (especially in an object-oriented framework) only an extension to the constraint system or, in the worst case, the implementation of additional decision-making modules (without needs for modification of the existing code). The paper presents ILOG SCHEDULE, a C++ library enabling the representation of a wide collection of scheduling constraints in terms of `resources' and `activities'. ILOG SCHEDULE is based on SOLVER, the generic software tool for object-oriented constraint programming from ILOG. SOLVER variables and constraints can be accessed from SCHEDULE activities and resources. As a result, SCHEDULE users can make use of SOLVER to represent specific constraints, and implement and combine the specific problem-solving strategies that are the most appropriate for the scheduling application under consideration. It is hoped-and expected-that object-oriented constraint programming tools like SCHEDULE will enable the industry to make decisive steps toward the implementation of `state-of-the-art' highly flexible, constraint-based scheduling applications View full abstract»

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  • Active rescheduling for automated guided vehicle systems

    Publication Year: 1994 , Page(s): 87 - 100
    Cited by:  Patents (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (748 KB)  

    The paper examines the use of knowledge-based techniques to generate a framework for the active rescheduling of an automated guided vehicle system in a manufacturing environment. The authors' approach to active rescheduling uses `cues' drawn from events on the shop-floor to trigger rescheduling. Simulation experiments are used to capture knowledge about the shop-floor and various scheduling strategies. An extensible agent architecture is developed to facilitate active rescheduling View full abstract»

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  • Intelligent scheduling: Past, present and future

    Publication Year: 1994 , Page(s): 67 - 78
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1028 KB)  

    It has been more than a decade since the first intelligent scheduling system ISIS was reported. Numerous intelligent scheduling systems have been developed since then, in the USA and in Europe, new search techniques have been invented, new theoretical results are emerging, and scheduling applications have been developed from general-purpose toolkits. This paper summarises achievements in intelligent scheduling over the decade and takes a brief look forward View full abstract»

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Aims & Scope

Intelligent Systems Engineering was published by the IET between 1992 and 1994.

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