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Finding and disambiguating references to entities on web pages

  • US 8,122,026 B1
  • Filed: 10/20/2006
  • Issued: 02/21/2012
  • Est. Priority Date: 10/20/2006
  • Status: Active Grant
First Claim
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1. A method for identifying documents referring to an entity, the entity being associated with a first set of features, the method comprising:

  • identifying a first set of documents based on a first model and the first set of features, wherein the first model includes a first set of rules specifying at least one combination of features from the first set of features that are sufficient for identifying a document referring to the entity, each document of the first set of documents comprising a sufficient number of features in common with the first set of features to identify a document referring to the entity according to the first model;

    determining a second model based on the features of the first set of documents, wherein the second model includes a second set of rules specifying at least one combination of features from the first set of documents that are sufficient for identifying a document referring to the entity;

    identifying a second set of documents based on the second model and the first set of features, each document of the second set of documents comprising a sufficient number of features in common with the first set of features to identify a document referring to the entity according to the second model;

    identifying a second set of features based on the second set of documents;

    determining if the second set of features are associated with the entity; and

    responsive to determining that the second set of features are associated with the entity, identifying a third set of documents based on a third model and the second set of features, the third set of documents each comprising a sufficient number of features in common with the second set of features to identify a document referring to the entity according to the third model.

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