Patent Document ID: 9767478
Application ID: 13615730

Base Claim:
1. A method comprising: determining, by one or more server devices and for a first time period, a first quantity of links associated with a document; determining, by the one or more server devices and for a second time period, a second quantity of links associated with the document, the second time period being subsequent to the first time period, and the second quantity of links being less than the first quantity of links; identifying, by the one or more server devices, a first weight associated with each link of the second quantity of links; determining, by the one or more server devices and based on the first weight, a second weight; determining, by the one or more server devices and based on the determined second weight and the second quantity of links being less than the first quantity of links, that the document is stale; and processing, by the one or more server devices and based on determining that the document is stale, the document.

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Claim 5:
5. The method of claim 1 , further comprising: determining another document associated with at least one of the second quantity of links; and determining a score associated with the other document, the score being determined by discounting a contribution of the at least one of the second quantity of links to the score.