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Stochastic modeling of spatial distributed sequences

  • US 7,613,572 B2
  • Filed: 02/20/2002
  • Issued: 11/03/2009
  • Est. Priority Date: 02/20/2001
  • Status: Active Grant
First Claim
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1. An apparatus for determining statistical consistency in spatially related data, wherein said spatially related data is expressible in terms of a finite set of symbols, the apparatus comprising:

  • a sequence input configured for receiving a spatially related data sequence of symbols selected from said finite set;

    a modeler configured for producing at least one context tree model from at least part of said data sequence, wherein said context tree model comprises a set of conditional probabilities of symbols in said sequence,a comparator configured for calculating a statistical distance between said context tree model and a reference model, and for comparing said calculated statistical distance to a user-defined level so as to determine if said context tree model and said reference model are statistically consistent; and

    an output interface configured for outputting said determination to a display, to a user, in a graphical format, or in a user readable format, thereby allowing monitoring of said spatially related data.

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