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wardbekker/async_bm25.erl

Created September 9, 2011 11:18
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async_bm25.erl
term_document_score(NumberOfTimesTermAppearsInDocument, NumberOfDocumentsWithTerm, AverageDocumentLength, TotalNumberOfDocuments) ->
TermFrequency = term_frequency( NumberOfTimesTermAppearsInDocument, AverageDocumentLength),
Idf = important_document_frequency_of_term( TotalNumberOfDocuments, NumberOfDocumentsWithTerm ),
TermFrequency * Idf.
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