I don't know the specific rules in these specific stemmers, but generally a
"less aggressive" stemming (e.g., "plural-only") of "paintings" would be
"painting", while a "more aggressive" stemming would be "paint". For some
"aggressive" stemmers the stemmed word is not even a word.
It would be nice to have doc with some example words for each stemmer.
-- Jack Krupansky
-----Original Message-----
From: spr...@gmx.eu
Sent: Friday, May 25, 2012 5:59 AM
To: solr-user@lucene.apache.org
Subject: RE: Wildcard-Search Solr 3.5.0
Oh, thx for the update! I didn't noticed that solr 3.6 has a text_de field
type. These two options... less / more aggressive. Aggressive in terms of
what?
Thank you!
-----Original Message-----
From: Jack Krupansky [mailto:j...@basetechnology.com]
Sent: Freitag, 25. Mai 2012 03:25
To: solr-user@lucene.apache.org
Subject: Re: Wildcard-Search Solr 3.5.0
I tried it and it does appear to be the
SnowballPorterFilterFactory that
normally does the accent folding but can't here because it is
not multi-term
aware. I did notice that the text_de field type that comes in
the Solr 3.6
example schema handles your case fine. It uses the
GermanNormalizationFilterFactory to fold accented characters and is
multi-term aware. Any particular reason you're not using the
stock text_de
field type? It also has three stemming options which might be
sufficient for
your needs.
In any case, try to make your text_de field type closer to the stock
version, and try to use GermanNormalizationFilterFactory, and
that may be
good enough for your situation.
