5. The method of claim 3 , wherein: each set of search results stored in the target query record includes a feedback indicator, and the feedback indicator indicates whether a user selected one or more of the search results in response to being presented with the search results.
5. The method of claim 3 , wherein: each set of search results stored in the target query record includes a feedback indicator, and the feedback indicator indicates whether a user selected one or more of the search results in response to being presented with the search results. 6. The method of claim 5 , wherein determining the query recommendation score includes: determining a click-through rate associated with the search query based on the feedback indicators stored in the target query record; and determining the query recommendation score based on the click-through rate.