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.
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. 13. The computing system of claim 12 , wherein the query independent score associated with the second document is the highest among a subset of the plurality of documents, wherein the subset of the plurality of documents excludes the first document.