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Dimensionality reduction

  • US 20090138428A1
  • Filed: 03/15/2005
  • Published: 05/28/2009
  • Est. Priority Date: 03/15/2005
  • Status: Active Grant
First Claim
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1. A computer-implemented method for presenting a view of data in a multidimensional database the method comprising:

  • assigning aggregate measures of orthogonality to one or more combinations of two or more columns in the multidimensional database;

    wherein each aggregate measure of orthogonality indicates a measure of interdependence between values in a first column and values in one or more other columns;

    determining a view of data based at least upon said aggregate measures of orthogonality, said determining including determining an orthogonal basis for the view;

    wherein said view is of a subset of data in the multidimensional database;

    wherein said orthogonal basis is one or more columns of the multidimensional database selected based on the aggregate measures of orthogonality; and

    displaying said view of data.

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