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Karl Wettin commented on LUCENE-1515: ------------------------------------- This is actually a rather nice stemmer if you ask me. It's semi-expensive due to the rule-set but does a much better job compared to the standard Swedish Snowball stemmer and I've successfully used it in several projects. > Improved(?) Swedish snowball stemmer > ------------------------------------ > > Key: LUCENE-1515 > URL: https://issues.apache.org/jira/browse/LUCENE-1515 > Project: Lucene - Core > Issue Type: New Feature > Components: modules/analysis > Affects Versions: 2.4 > Reporter: Karl Wettin > Attachments: LUCENE-1515.txt > > > Snowball stemmer for Swedish lacks support for '-an' and '-ans' related > suffix stripping, ending up with non compatible stems for example "klocka", > "klockor", "klockornas", "klockAN", "klockANS". Complete list of new suffix > stripping rules: > {pre} > 'an' 'anen' 'anens' 'anare' 'aner' 'anerna' 'anernas' > 'ans' 'ansen' 'ansens' 'anser' 'ansera' 'anserar' 'anserna' > 'ansernas' > 'iera' > (delete) > {pre} > The problem is all the exceptions (e.g. svans|svan, finans|fin, nyans|ny) and > this is an attempt at solving that problem. The rules and exceptions are > based on the [SAOL|http://en.wikipedia.org/wiki/Svenska_Akademiens_Ordlista] > entries suffixed with 'an' and 'ans'. There a few known problematic stemming > rules but seems to work quite a bit better than the current SwedishStemmer. > It would not be a bad idea to check all of SAOL entries in order to make sure > the integrity of the rules. > My Snowball syntax skills are rather limited so I'm certain the code could be > optimized quite a bit. > *The code is released under BSD and not ASL*. I've been posting a bit in the > Snowball forum and privatly to Martin Porter himself but never got any > response so now I post it here instead in hope for some momentum. -- This message was sent by Atlassian JIRA (v6.1#6144) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org