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Many search engines allow for different weightings for queries vs. documents
SMART Notation: denotes the combination in use in an engine, with the notation ddd.qqq, using the acronyms from the previous table
A very standard weighting scheme is: lnc.ltc
Document: logarithmic tf (l as first character), no idf and cosine normalization
Query: logarithmic tf (l in leftmost column), idf (t in second column), no normalization …
A bad idea?
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