Patent Document ID: 7797316
Application ID: 10879503

Base Claim:
1. A method, performed by one or more server devices, of determining the freshness of a first document, comprising: identifying, by a processor of the one or more server devices, a set of second documents that each contains a link to the first document; determining, by a processor of the one or more server devices, a freshness attribute associated with each document of the set of second documents, where the freshness attribute indicates when each document was last modified; assigning, by a processor of the one or more server devices, a freshness score to the first document based on the freshness attribute associated with each document of the set of second documents; and ranking, by a processor of the one or more server devices, the first document with respect to at least one other document based on the freshness score assigned to the first document.

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Claim 4:
4. The method of claim 1 , further comprising: executing a search of a corpus of documents to return results associated with the plurality of documents, where the plurality of documents include the first document.