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  • Articles  (6)
  • Blackwell Publishing Ltd  (6)
  • American Association of Petroleum Geologists (AAPG)
  • American Chemical Society
  • 1985-1989  (6)
  • 1980-1984
  • 1945-1949
  • Computer Science  (6)
  • 1
    Electronic Resource
    Electronic Resource
    Spatiotemporal inseparability in early vision: centre-surround models and velocity selectivity (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 1 (1985), S. 0 
    Details
    ISSN: 1467-8640
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Computer Science
    Notes: Several computational theories of early visual processing, such as Marr's zero-crossing theory, are biologically motivated and based largely on the well-known difference of Gaussians (DOG) receptive-field model of retinal processing. We examine the physiological relevance of the DOG, particularly in the light of evidence indicating significant spatiotemporal inseparability in the behaviour of retinal cell types. From the form of the inseparability we find that commonly accepted functional interpretations of retinal processing based on the DOG, such as the Laplacian of a Gaussian and zero crossings, are not valid for time-varying images. In contrast to current machine-vision approaches, which attempt to separate form and motion information at an early stage, it appears that this is not the case in biological systems. It is further shown that the qualitative form of this inseparability provides a convenient precursor to the extraction of both form and motion information. We show the construction of efficient mechanisms for the extraction of orientation and two-dimensional normal velocity through the use of a hierarchical computational framework. The resultant mechanisms are well localized in space-time and can be easily tuned to various degrees of orientation and speed specificity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8640.1985.tb00062.x
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  • 2
    Electronic Resource
    Electronic Resource
    Expert systems for engineering design (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 2 (1985), S. 0 
    Details
    ISSN: 1468-0394
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Computer Science
    Notes: Abstract: An expert system embodies a humun expert's domain-specific knowledge and skill, acquired and refined over years of experience. A number of problems in diagnosis and engineering design can be solved by Using current expert-system techniques. This paper enumerates the main components of such problems and the steps that are taken in solving them. A few prototypical articificial intellegence systems embody techniques that can be applied to engineering problems. These are surveyed, and their relevance to components of design problems is discussed. Some expert systems in design domains are summarized, with emphasis on aspects that can illustrate wider applicability of the techniques. A number of avenues of further research are evident, and the area of engineering design offers rich opportunities for advancing the state-of-the-art in expert systems. An annotated selective bibliography is included
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1468-0394.1985.tb00448.x
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  • 3
    Electronic Resource
    Electronic Resource
    Logic versus logicism: a reply to McDermott (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 3 (1987), S. 0 
    Details
    ISSN: 1467-8640
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Computer Science
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8640.1987.tb00191.x
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  • 4
    Electronic Resource
    Electronic Resource
    In praise of Bayes (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 4 (1988), S. 0 
    Details
    ISSN: 1467-8640
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Computer Science
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8640.1988.tb00104.x
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  • 5
    Electronic Resource
    Electronic Resource
    Synthesizing plans that contain actions with context-dependent effects (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 4 (1988), S. 0 
    Details
    ISSN: 1467-8640
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Computer Science
    Notes: This paper presents a method of solving planning problems that involve actions whose effects change according to the situations in which they are performed. The approach is an extension of the conventional planning methodology in which plans are constructed through an iterative process of scanning for goals that are not yet satisfied, inserting actions to achieve them, and introducing subgoals to these actions. This methodology was originally developed under the assumption that one would be dealing exclusively with actions that produce the same effects in every situation. The extension involves introducing additional subgoals to actions above and beyond the preconditions of execution normally introduced. These additional subgoals, called secondary preconditions, ensure that the actions are performed in contexts conducive to producing the effects we desire. This paper defines and analyzes secondary preconditions from a mathematically rigorous standpoint and demonstrates how they can be derived from regression operators.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8640.1988.tb00285.x
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  • 6
    Electronic Resource
    Electronic Resource
    Comments on An inquiry into computer understanding (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 4 (1988), S. 0 
    Details
    ISSN: 1467-8640
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Computer Science
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8640.1988.tb00096.x
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