12. The computing system of claim 10 , wherein indexing the first document includes: identifying a canonical document for the plurality of documents, from one of: (i) the first document, or (ii) a second document in the plurality of documents, by: comparing the query independent score associated with the first document to a query independent score associated with the second document; and selecting the first document as the canonical document when the query independent score associated with the first document is higher than the query independent score associated with the second document by more than a predefined threshold.
10. A computing system, comprising: one or more processors; memory; and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, the one or more programs comprising instructions for: obtaining, using the one or more processors, a plurality of documents, wherein a respective document in the plurality of document is associated with a query independent score; selecting a first document in the plurality of documents in accordance with a query independent score associated with the first document, wherein the first document has a fingerprint that indicates that the first document has substantially identical content to every other document in the plurality of documents; indexing, in accordance with the query independent score, the first document thereby producing an indexed first document; and with respect to the plurality of documents, including only the indexed first document in a document index.