| http://www.w3.org/ns/prov#value | - S D =??S T *TF TD, ST has the value set forth above, TFTD=Robertson's term frequency for Term T in Document D =NTD/(NTD+K1+K2*(LD/L0)), where: NTD is a number of times the term T occurs in document D, LD is a length of document D, L0 is an average length of a document in the collection of documents indexed, and K1 and K2 are constants. 37.
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