10. The system of claim 6 , where the generated score is a first score, where the one or more devices are further to: generate a second score, for the document, that is based on a relevance of the document to a search query; and combine the first and second scores to generate an overall score, where when ranking the document, the one or more devices are to rank the document with regard to the at least one other document based on the overall score.
6. A system, comprising: one or more devices to: determine a first average amount of time that a first set of users spent accessing a document during a first time period; determine a second average amount of time that a second set of users spent accessing the same document during a second time period, the second time period occurring after the first time period; compare the first average amount of time to the second average amount of time; determine, based on the comparing, that the first average amount of time is different from the second average amount of time classify the document as stale or fresh based on determining that the first average amount of time is different from the second average amount of time, when classifying the document, at least one of the one or more devices further being to: classify the document as stale when the first average amount of time is greater than the second average amount of time, and classify the document as fresh when the first average amount of time is less than the second average amount of time generate a score for the document based on classifying the document as stale or fresh; and rank the document with regard to at least one other document based on the generated score.