10. A method executable by computer hardware for digitally deriving a classification for a candidate document retrieved in response to a search query submitted to an online search engine, the method comprising: calculating a hub score for an adult hub, wherein the adult hub is connected to a plurality of adult documents; calculating a document score for the candidate document, the document score comprising a hub distance score measuring a hop distance between the candidate document and the adult hub, the hop distance corresponding to a total number of hops between the candidate document and the adult hub, and each hop corresponding to a direct connection between two Web documents; classifying the candidate document as adult based on inputs comprising the document score of the candidate document and the hub score; calculating at least one synthetic score for each of a plurality of document groups associated with a plurality of documents, each synthetic score comprising an aggregation of a plurality of document scores, the classifying the candidate document as adult being further based on inputs comprising the at least one synthetic score; and if the candidate document is classified as adult, removing the candidate document from responses to a search query provided to the search engine.
10. A method executable by computer hardware for digitally deriving a classification for a candidate document retrieved in response to a search query submitted to an online search engine, the method comprising: calculating a hub score for an adult hub, wherein the adult hub is connected to a plurality of adult documents; calculating a document score for the candidate document, the document score comprising a hub distance score measuring a hop distance between the candidate document and the adult hub, the hop distance corresponding to a total number of hops between the candidate document and the adult hub, and each hop corresponding to a direct connection between two Web documents; classifying the candidate document as adult based on inputs comprising the document score of the candidate document and the hub score; calculating at least one synthetic score for each of a plurality of document groups associated with a plurality of documents, each synthetic score comprising an aggregation of a plurality of document scores, the classifying the candidate document as adult being further based on inputs comprising the at least one synthetic score; and if the candidate document is classified as adult, removing the candidate document from responses to a search query provided to the search engine. 13. The method of claim 10 , each document group comprising documents associated with a single container.