1. A method performed by one or more devices, the method comprising: determining, by at least one of the one or more devices, a frequency at which a document is selected over time when the document is included in a set of search results, where determining the frequency at which the document is selected includes: determining a first rate at which the document is selected in a first time period, determining a second rate at which the document is selected in a second time period, and comparing the first rate and the second rate to determine whether there is an increase or a decrease in the rate at which the document is selected between the first and second time periods; generating, by at least one of the one or more devices, a score for the document based on the frequency at which the document is selected over time when the document is included in a set of search results, where generating the score for the document includes: scoring the document based on whether there is an increase or a decrease in the rate at which the document is selected; and ranking, by at least one of the one or more devices, the document with regard to at least one other document based on the score.
1. A method performed by one or more devices, the method comprising: determining, by at least one of the one or more devices, a frequency at which a document is selected over time when the document is included in a set of search results, where determining the frequency at which the document is selected includes: determining a first rate at which the document is selected in a first time period, determining a second rate at which the document is selected in a second time period, and comparing the first rate and the second rate to determine whether there is an increase or a decrease in the rate at which the document is selected between the first and second time periods; generating, by at least one of the one or more devices, a score for the document based on the frequency at which the document is selected over time when the document is included in a set of search results, where generating the score for the document includes: scoring the document based on whether there is an increase or a decrease in the rate at which the document is selected; and ranking, by at least one of the one or more devices, the document with regard to at least one other document based on the score. 4. The method of claim 1 , further comprising: determining an amount of time that one or more users spent accessing the document when the document is selected from the set of search results.