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  • US 7,751,592 B1
  • Filed: 01/13/2006
  • Issued: 07/06/2010
  • Est. Priority Date: 01/13/2006
  • Status: Active Grant
First Claim
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1. A method performed by one or more processors of one or more server devices, the method comprising:

  • extracting a feature from an image;

    determining a first score for the image based on the extracted feature, the first score representing a likelihood that the image contains inappropriate content based on the extracted feature;

    generating a first set of statistics for the extracted feature representing a distribution of the feature across other images on at least one first document with which the image is associated;

    generating a second set of statistics based on the first score, the second set of statistics representing a distribution of the first score across the other images on the at least one first document;

    determining a second score for a second document that contains the image or refers to the image, the second score representing a likelihood that the second document contains inappropriate content;

    generating a third set of statistics based on the second score, the third set of statistics representing a distribution of the second score across the at least one first document;

    determining a third score for the image based on the first score, the first set of statistics, the second set of statistics, the second score, and the third set of statistics; and

    using the third score to determine whether to provide the image to a user.

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