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A note on

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A note on functional space A note on the use of a matrix to represent space the functional space argument What we are looking for is a format to ... – PowerPoint PPT presentation

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Title: A note on


1
A note on functional space
2
A note on the use of a matrix to represent space
the functional space argument
  • What we are looking for is a format to represent
    spatial layouts that inherently meets the
    requirements listed earlier
  • We want a formalism that captures or has those
    properties, not one that describes or states them
    any language can do that!
  • A matrix data-structure can be used to represent
    space, but it does not have spatial properties
    (magnitudes, continuity). The user has to
    stipulate what properties the matrix must have
    when it is used to represent space. For example,
  • Cells in a matrix do not have to be accessed in
    any particular order if one insists that they
    must be accessed in some specified (listed) order
    this is not part of the matrix format.
  • Cells in a matrix do not represent magnitudes
    except when their names are interpreted as
    numeral pairs
  • Cells in a matrix do not represent configurations
    any more than a language does
  • A matrix only seems to be a natural
    representation of (2D) space because we usually
    depict it as a NxN table

3
Functional space?
  • There is no such thing as a functional space
    it is whatever we specify it to be, so it cant
    be used to explain how we represent space
  • What seems confusing about this is that we can
    use a matrix to model space, just as we can use a
    diagram, but we do not want to claim that the
    system we are explaining (i.e., the brain) uses
    this matrix model since it does not have the
    right architecture (i.e., a memory addressable by
    numerals)
  • In every case of a proposal for a format for
    spatial representation a useful heuristic is to
    ask what it assumes beyond what you could get
    with a description in natural language i.e.,
    beyond the content of what is represented.
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