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Apparatus for data decomposition and method and storage medium therefor

  • US 6,341,283 B1
  • Filed: 12/21/1998
  • Issued: 01/22/2002
  • Est. Priority Date: 05/21/1998
  • Status: Expired due to Term
First Claim
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1. An apparatus for data decomposition that extracts partial data from whole data by selecting, with respect to each record and from data which catalog a plurality of attributes possessed by each record, a combination of each event corresponding to each record and a combination of feature quantities, which are said attributes, comprising:

  • a unit figuring evaluation values that become standards for ascertaining a relevance among data with respect to combinations of specific features and combinations of specific events; and

    a unit extracting a plurality of partial data for which an evaluation value becomes a maximum value with respect to both changes in combinations of features and changes in combinations of events, wherein the evaluation values are figured by including a selected event count, a total segment count in partial feature spaces that are to be selected, and a selected segment count in the partial feature spaces that are to be selected.

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