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  • fuzzy and probabilistic inference  (1)
  • uncertainty  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Intelligent reasoning using general knowledge to update specific information: A database approach (1995)
    Springer
    Journal of intelligent information systems 4 (1995), S. 281-304 
    Details
    ISSN: 1573-7675
    Keywords: relational database ; mass assignments ; fuzzy sets ; uncertainty
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract This paper describes a database framework which is similar to a relational database in style but uses alternative knowledge structures to represent uncertain data. Two knowledge structures are used, the mass assignment to represent probabilistic information and fuzzy sets to hold subjective information. We describe how the query is modified such that the selection criteria is held in the form of specific knowledge which can be updated with the more general knowledge held in the database. The updating procedure has the effect of filling in uncertain or missing information such that a final solution can be found. The operations required to perform a query are generated automatically, optimisation is performed as the operations are determined. The output from the database is in the form of a distribution over a projection of the database domain space. An example is given where a database of sea vessels can be given uncertain or noisy evidence about the characteristics of a vessel and a distribution of the likelihood of each of the vessels can be determined from the evidence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00961656
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    From fuzzy databases to an intelligent manual using fril (1993)
    Springer
    Journal of intelligent information systems 2 (1993), S. 365-395 
    Details
    ISSN: 1573-7675
    Keywords: fuzzy and probabilistic databases ; fuzzy and probabilistic inference ; information retrieval Lander uncertainty ; Fril ; Intelligent Manual
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract This paper describes an Intelligent Manual written in Fril which can act as an interface to documentation, software, and the conceptual framework of a technical study. The Intelligent Manual can also act as an assistant to an engineer involved in a technical investigation drawing on previous work. Methods of dealing with the uncertainties in data and inference are described, and a demonstration system is outlined covering a report on the performance assessment of a hazardous waste repository. The methods used in the Intelligent Manual can be applied to any technical documentation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00961660
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    Paper (German National Licenses)
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