I don't have direct experience with MLT, but this sounds like a great improvement, so in answer to (3) I would say "definitely!".
Mike On Tue, Apr 7, 2009 at 2:28 AM, Richard Marr <richard.m...@gmail.com> wrote: > Hi all, > > I've been exploring MoreLikeThisQuery as part of a recent project and > something that came out of that might be useful to others here. > > I found that using MoreLikeThisQuery could be quite slow for my use > case, but that most of the time involved was spent looking up term > frequencies to calculate weightings. Since those term frequencies > usually don't need to be anywhere near real-time I found that caching > them in a hashmap had a very good cost/benefit ratio for my > application, speeding up MLT queries by an order of magnitude. > > My use case was possibly unusual in that I was looking at a limited > vocabulary rather than full English, but in theory other applications > that make use of the MLT class could benefit. > > So at this point I have some questions: (1) Have others experienced > similar performance characteristics for MLT code? (2) Am I missing > some fatal flaw in this approach? (3) Are the modifications worth > sharing? > > Cheers, > > Rich > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-dev-h...@lucene.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org For additional commands, e-mail: java-dev-h...@lucene.apache.org
