11. The method of claim 9 , wherein generating a revised query based on the filtering term comprises generating a negative Boolean term based on the filtering term.
9. The method of claim 1 , wherein identifying filtered content items based on the query and the filtering term comprises: generating a revised query based on the filtering term; initiating a search of an information corpus for content items that are responsive to the revised query; and identifying the content items that are responsive to the revised query as the filtered content items.