If Hoss is referring to synonym expansion, allow me to point out that freely downloadable code from Lucene in Action (first edition) has code for that, if you'd like to have a look, OP.
Otis -- Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch ----- Original Message ---- > From: Chris Hostetter <hossman_luc...@fucit.org> > To: java-user@lucene.apache.org > Sent: Saturday, December 20, 2008 2:12:21 PM > Subject: Re: Inquiry on Lucene Stemming > > > : Well some client inquiries if it's possible to expand such simple words > : and does Lucene have an API for this logic? Because all I read was the > : stemming logic for Lucene was the other way around which is, example > : "flashing" it will be trimmed to the root word "flash" when searched. > > there are two fundemental approaches (that i know of) to stemming: > reduction and expansion. > > reduction can either be algorithmic, or morphologically/dictionary based. > expansion esentially has to be morphologically based. > > The SnowballAnalyzer uses the Snowball stemming algorithm, which is a > reduction approach to stemming. if you want an expansion based appraoch, > you have to have a dictionary. Lucene doens't provide one of these, but > that doens't mean you can't use one if you find one -- it's been a while > since i looked but the only ones i've ever seen were only commercially > avialable. > > http://en.wikipedia.org/wiki/Stemming > > > > > -Hoss > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
