Patent ID: 8255390

Claim:
A method, comprising: by one or more computing devices, accessing: one or more query-resource pairs, wherein for each one of the query-resource pairs comprising one of one or more search queries and one of one or more network resources, the one search query is recency-sensitive with respect to a particular time period, and the one network resource is identified for the one search query; a resource-view count associated with each one of the query-resource pairs, wherein for each one of the query-resource pairs, the resource-view count is a number of search sessions during which one of one or more network users has viewed the one network resource in connection with the one search query; and a resource-click count associated with each one of the query-resource pairs, wherein for each one of the query-resource pairs, the resource-click count is a number of search sessions during which one of the network users has clicked on the one network resource in connection with the one search query; and constructing one or more first click features using the resource-view counts and the resource-click counts associated with the query-resource pairs, wherein constructing one of the first click features in connection with one of the query-resource pairs comprises: determining a only-resource-click count associated with the one query-resource pair using the resource-click count associated with the one query-resource pair, wherein the only-resource-click count is a number of search sessions during which one of the network users has clicked only on the one network resource and none of other ones of the network resources in connection with the one search query; and calculating a ratio between the only-resource-click count and the resource-view count associated with the one query-resource pair as the one first click feature.