Hi Philipp,
At 10:49 pm +0100 3/7/07, Paul Elschot wrote:
On Wednesday 07 March 2007 18:12, Philipp Nanz wrote:
Thanks for your answers. Your input is really appreciated :-)
@Paul Elschot:
Thanks for the hint. I guess I could use coord() to penalize missing
terms like this:
Query: a b c d
Doc A: a b c d => sloppyFreq(0) * coord(4, 4) = 1
Doc B: a b c => sloppyFreq(0) * coord(3, 4) = 0,75
Doc would score higher. I guess that might be a valid solution.
There is a drawback though, i.e. sloppyFreq(1) * coord(4, 4) = 0,5
So a perfect match with one insertion would score less than a 3 of 4
match with no slop.
Your examples are based on DefaultSimilarity.
With a Similarity in your Scorer you can leave the tradeoff between these
factors to the user of your query by letting them provide the Similarity
at query time.
[snip]
I'm curious if Paul's input here helped you finish your
FuzzyPhraseQuery (or FuzzySpanQuery) addition to Lucene.
Thanks,
-- Ken
--
Ken Krugler
Krugle, Inc.
+1 530-210-6378
"If you can't find it, you can't fix it"
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