David, here is an example. * Original query: foo bar baz
* "phrases created from the entire query": "foo bar baz" Otis ---- Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch Lucene ecosystem search :: http://search-lucene.com/ ----- Original Message ---- > From: David Boxenhorn <da...@lookin2.com> > To: solr-user@lucene.apache.org > Sent: Sun, October 10, 2010 5:02:01 AM > Subject: Re: Query slop vs. phrase slop > > Thanks, Jonathan. Your explanation is very helpful. > > Can you explain exactly what you mean by "phrases created from the entire > query"? > > > > On Thu, Oct 7, 2010 at 7:13 PM, Jonathan Rochkind <rochk...@jhu.edu> wrote: > > > What you said in your own quoted message is correct. qs is slop applied to > > phrases explicitly in the &q with double quotes. ps is slop applied to the > > phrases created from the entire query for evaluating pf boosts. > > > > qs will (potentially) change your result set. ps will only (potentially) > > change the ranked ordering of your result set, by loosening what a "phrase > > match" means to the pf boost. > > > > > > David Boxenhorn wrote: > > > >> Does anybody know the answer to this? > >> > >> On Tue, Oct 5, 2010 at 7:19 PM, David Boxenhorn <da...@lookin2.com> > >> wrote: > >> > >> > >> > >>> Thank you. I am talking about dismax's parameters. > >>> > >>> This is how I understand things, please tell me where I'm wrong: > >>> > >>> Query slop (qs) = how many words you can move the query to match the > >>> text. > >>> Phrase slop (ps) (when used in conjunction with &pf=text - is there > >>> another > >>> possibility?) = how many words you can move the text to match the query. > >>> > >>> How are those two different in terms of the results they produce? > >>> > >>> On Tue, Oct 5, 2010 at 7:08 PM, Ahmet Arslan <iori...@yahoo.com> wrote: > >>> > >>> > >>> > >>>> Can anyone explain to me the > >>>>> practical difference (i.e. in terms of results) > >>>>> between query slop and phrase slop? > >>>>> > >>>>> > >>>> I think you are asking about dismax's parameters, right? > >>>> > >>>> ps (Phrase Slop) is about pf parameter. > >>>> > >>>> qs (Query Phrase Slop) : You cannot use tilde operator with dismax, so > >>>> this parameter is used instead. > >>>> > >>>> luceneQParser : "term1 term2"~3 => dismaxQParer : q="term1 term2"&qs=3 > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>> > >> > >> > > >
