Hi,
In our java project we uses a (slightly modifed) version of
FuzzyLikeThis query which
"For each source term the fuzzy variants are held in a BooleanQuery with
no coord factor (because
we are not looking for matches on multiple variants in any one doc).
Additionally, a specialized
TermQuery is used for variants and does not use that variant term's IDF
because this would favour rarer
terms eg misspellings. Instead, all variants use the same IDF ranking
(the one for the source query
term) and this is factored into the variant's boost. If the source
query term does not exist in the
index the average IDF of the variants is used."
In most cases it performs well but if there is short query term with (as
usual) big number of variants the exact matches will be stay spreaded
among the others which is not so useful: it should be "sorted" like (or
forcibly set more relevant) exact matches and variant matches according
to relevancy.
Is there any simple solution or already implemented contrib query class
for this problem?
Best regards,
Adam Berkes,
Intland Software
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