Patent ID: 8521746

Claim:
A system comprising: one or more devices to: identify sets of related documents; selectively classify the sets of related documents as bounce pads based on redirects associated with documents in the sets of related documents, the one or more devices, when selectively classifying the sets of related documents being to: determine a first value representing a quantity of documents, in the sets of related documents, that are sources of the redirects, determine a second value representing a quantity of the documents, in the sets of related documents, that are not sources of the redirects, compute a redirect score based on the first value and the second value, and use the computed redirect score to selectively classify the sets of related documents as the bounce pads; compile a list of bounce pads based on one or more of the sets of related documents that are classified as bounce pads; identify a cluster of duplicate documents; determine whether a particular document in the cluster of duplicate documents corresponds to a bounce pad in the list of bounce pads; select one of the documents in the cluster of duplicate documents as representative of the cluster without considering the particular document when the particular document corresponds to a bounce pad in the list of bounce pads; and index the selected document.