Have you taken a look at MoreLikeThis http://lucene.apache.org/java/2_4_0/api/org/apache/lucene/search/similar/MoreLikeThis.html
Regards, Dinh my mission is that finding in the SET what are tops of similar documents > with this query. > -- Spica Framework: http://code.google.com/p/spica http://www.twitter.com/pcdinh http://groups.google.com/group/phpvietnam