Stemming options

[Boris Goldowsky <bo...@alum.mit.edu>]

Has anyone on the list implemented a dictionary-based English stemmer
with Lucene?  Perhaps based on the freely-available ispell dictionaries
or something like that?  The Porter and Snowball stemmers have not
worked that well for our application, but it is a bit daunting to start
from scratch in developing an alternate stemmer.

Alternatively, is there an algorithmic stemmer that anyone has used
which is a little less aggressive than the Porter algorithm?  We've been
having problems with searches for "conversion" returning "converse" and
"conversational"; and "animal" returning "animate".  Yes, these are
morphologically related, but in our particular application it would be
better to stick with removing simple inflections.

Thanks for any pointers --

Boris



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