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Evaluation and cluster formation based on element correlation

  • US 20050251514A1
  • Filed: 04/13/2005
  • Published: 11/10/2005
  • Est. Priority Date: 04/14/2004
  • Status: Abandoned Application
First Claim
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1. An evaluation system comprising:

  • an evaluation target cluster selection unit, wherein said system is for calculating a self-confidence value for a cluster formed by selecting some of a plurality of elements having a predetermined degree of correlation with each other, the self-confidence value indicating a degree of confidence in selection of member elements included in the cluster, said evaluation target cluster selection unit to select a neighbor element set as a target cluster for evaluation, the neighbor element set being a set of a reference number of elements each having a higher correlation with a predetermined reference element;

    a neighbor element set selection unit to select a neighbor element set for each of member elements included in the cluster, the neighbor element set being a set of the reference number of elements each having a higher correlation with the relevant member element; and

    a confidence value calculation unit to calculate a ratio of the number of elements to the reference number, the elements being included both in the neighbor element set for one member element of a combination of two member elements available from the cluster and in the neighbor element set for the other member element, and which outputs a value based on a sum of the ratios calculated for all the combinations of the member elements, as the self-confidence value.

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