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
