: Subject: Stemmer bug? can you elaborate on what exactly you view as a bug?
if the issue is just that one of the examples stemms something in a way thta you think makes sense, but the other one does not that really isn't a bug so much as it is a comment on the effectiveness of the Snowball Stemmer for Russian vs the RussianStemmer class used by the RussianAnalzer. if you like the stemming that comes out of hte RussianAnalyzer you can use the RussianStemFilter yourslf by creating a simple FilterFactory arround it (there are lots of examples in teh Solr code base) Also keep in mind that the Snowball Stemmer is not designed to produce "real" words when it stems ... it's an algorithmic stemmer designed to produce artificial stems for common cases ... so if you think it's a bug because it produces terms that aren't real words -- it's not, that's just the way it works -- what matters is that it produces the same artificaial stem for related words. -Hoss