On Tue, Feb 22, 2011 at 11:23 AM, Clemens Wyss <clemens...@mysign.ch> wrote: > Fernando, Uwe thanks for your suggestions. > Is it possible to get the number of "hits" per term? > ferrari (125) > lamborghini (34) > ...
I think you can just call TermEnum#docFreq(), no? simon > >> -----Ursprüngliche Nachricht----- >> Von: Fernando Wasylyszyn [mailto:ferw...@yahoo.com.ar] >> Gesendet: Montag, 21. Februar 2011 21:11 >> An: java-user@lucene.apache.org >> Betreff: Re: Suggest search terms >> >> I think that the idea that Uwe mentions is completely valid. Although it has >> a >> few disadvantages: >> >> For example, what if you want to suggest "multiword suggestions" and in >> your index you have only "single word" tokens. >> >> Query: Ferrari >> Ideal suggestions: Ferrari 354 BT, Ferrari 355 C, Ferrari 356 Index have the >> tokens: Ferrari, 354, 355, 356, BT, C >> >> >> >> >> >> ________________________________ >> De: Uwe Schindler <u...@thetaphi.de> >> Para: java-user@lucene.apache.org >> Enviado: lunes, 21 de febrero, 2011 15:29:35 >> Asunto: RE: Suggest search terms >> >> Hi, >> >> I just have a suggestion to your first idea of enumerating terms, which is >> very >> fast if done right: >> >> > I'd like to suggest search terms to my users. My naïve approach would >> > have >> > been: >> > After at least n characters have been typed (asynchronously) find >> > terms in >> > IndexReader.terms() which "match" >> >> Much easier is to use IR.terms() but wrap a PrefixTermEnum around it (it's in >> search package). Then you simply iterate (please don't forget that the enum >> is already positioned on the first term!!! If no such term exists, the enum's >> term() returns null). Just use a "if (enum.term() != null) do { } while >> (enum.next()!=null && numberOfTermCollectex <= max)", with Lucene >> trunk this is much better now, but with 3.x, you have to use this ugly >> iteration. >> >> Uwe >> >> >> --------------------------------------------------------------------- >> 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 > > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
