US Patent 9110975 Search result inputs using variant generalized queries

Systems, methods and computer program products for generalizing a user-submitted query by forming one or more variants of the user-submitted query to generate one or more other queries, each of the one or more other queries being different from the user-submitted query. A generalized quality of result statistic is derived for a first document from respective data associated with each of the other queries, each respective data being indicative of user behavior relative to the first document as a search result for the associated other query. The generalized quality of result statistic is provided as the quality of result statistic input to a document ranking process for the first document and the user-submitted query.