7. A computer system, comprising: one or more processors; and memory including instructions that, when executed by the one or more processors, cause the computer system to at least: analyze a query response, corresponding to a query that has been submitted by a user, to obtain an advertisement targeted at the user, the advertisement being part of the query response; provide the query and the query response to a noise engine configured to generate noise information for the computer system based at least in part on the advertisement, the query comprising information that identifies at least one of the user or the query; receive the noise information from the noise engine, the noise information generated by the noise engine based at least in part on the query and the advertisement, and the noise information comprising a noise schedule with respective query execution times; cause one or more additional queries to be generated based at least in part on the noise information; and cause the one or more additional queries to be transmitted to the search engine according to the respective query execution times of the noise schedule.
8. The computer system of claim 7 , wherein the instructions further cause the computer system to determine one or more search queries semantically similar to the query submitted by the user.