12-04-2012 дата публикации
Номер: US20120089619A1
A system determines a freshness of a first document. The system determines whether a freshness attribute is associated with the first document. The system identifies, based on the determination, a set of second documents that each contain a link to the first document. The system assigns a freshness score to the first document based on a freshness attribute associated with each document of the set of second documents or the freshness attribute associated with the first document. 135-. (canceled)36. A method comprising:identifying, by one or more processors, a set of second documents, each second document, in the set of second documents, including a link to a first document;determining, by one or more processors, a time at which the links to the first document existed;assigning, by one or more processors, a freshness score to the first document based on the times at which the links to the first document existed; andranking, by one or more processors, the first document, with respect to at least one other document, based on the freshness score assigned to the first document.37. The method of claim 36 , where determining the time at which the links to the first document existed includes:determining times at which the links to the first document were created.38. The method of claim 36 , where identifying the set of second documents includes:identifying, as the set of second documents, second documents that include, or previously included, a link to the first document.39. The method of claim 38 , where determining a time at which the links to the first document existed includes:determining, for each of the second documents that include a link to the first document, a time at which the link to the first document was created; anddetermining, for each of the second documents that previously included a link to the first document, the time at which the link to the first document was created and a time at which the link to the first document was removed.40. The method of claim ...
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