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Inferencing data types of message components

  • US 7,617,531 B1
  • Filed: 02/18/2004
  • Issued: 11/10/2009
  • Est. Priority Date: 02/18/2004
  • Status: Active Grant
First Claim
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1. A method of a device for filtering messages routed across a network, the messages including field name-value pairs, the method comprising:

  • extracting, by a filter configured on a device, field name-value pairs from messages received via a network;

    determining, by a learning engine configured on the device, a most restrictive data type of values from a plurality of data types of values for a field name of the extracted field name-value pairs;

    determining, by the learning engine, a match factor for a data type, the match factor indicating a fraction of values for the same field name that match the data type;

    selecting, by the learning engine, a data type having a match factor exceeding a threshold and having no child data types with a match factor exceeding the threshold; and

    storing, by the device, the most restrictive data type in association with the field name.

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