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IEEE Transactions on Systems, Man, and Cybernetics

Issue 11 • Nov 1994

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Displaying Results 1 - 6 of 6
  • Metareasoning and the problem of small worlds

    Publication Year: 1994, Page(s):1643 - 1652
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1048 KB)

    Practical decision theoretic reasoning requires the construction of local, problem-specific models in which attention is confined to a restricted universe of propositions. Such a restricted universe is called a small world. Managing the construction and revision of small world models can itself be viewed as a meta-level decision problem. This paper presents a theoretical framework for understandin... View full abstract»

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  • Inference-driven construction of valuation systems from first-order clauses

    Publication Year: 1994, Page(s):1611 - 1624
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1344 KB)

    Network-based representations of uncertain knowledge are inherently propositional, and cannot easily accommodate generic, problem independent knowledge. A tremendous effort has been devoted in the knowledge representation community to develop languages that adequately represent different types of generic knowledge. The authors propose inference-driven construction as a means to use these languages... View full abstract»

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  • Dynamic construction and refinement of utility-based categorization models

    Publication Year: 1994, Page(s):1653 - 1663
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1100 KB)

    The actions taken by an automated decision-making agent can be enhanced by including mechanisms that enable the agent to categorize concepts effectively. We pose a utility-based approach to categorization based on the idea that categorization should be carried out in the service of action. The choice of concepts is critical in the effective selection of actions under resource constraints. We propo... View full abstract»

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  • Graph-grammar assistance for automated generation of influence diagrams

    Publication Year: 1994, Page(s):1625 - 1642
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1860 KB)

    One of the most difficult aspects of modeling complex dilemmas in decision-analytic terms is composing a diagram of relevance relations from a set of domain concepts. Decision models in many domains, however, exhibit certain prototypical patterns that can guide the modeling process. Concepts can be classified according to semantic types that have characteristic positions and typical roles in an in... View full abstract»

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  • Tradeoffs in knowledge-based construction of probabilistic models

    Publication Year: 1994, Page(s):1580 - 1592
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1336 KB)

    In many domains, the ability to use a knowledge base to automatically construct alternative probabilistic network models and then compare them is desirable. This paper makes two novel contributions towards achieving that goal: first, it analyzes a parameterized class of (a) static, and (b) temporal influence diagram, models which differ in the time-series process describing the temporal evolution ... View full abstract»

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  • Dynamic belief networks for discrete monitoring

    Publication Year: 1994, Page(s):1593 - 1610
    Cited by:  Papers (44)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1676 KB)

    We describe the development of a monitoring system which uses sensor observation data about discrete events to construct dynamically a probabilistic model of the world. This model is a Bayesian network incorporating temporal aspects, which we call a dynamic belief network; it is used to reason under uncertainty about both the causes and consequences of the events being monitored. The basic dynamic... View full abstract»

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