Joel: I find that whenever I say something totally wrong publicly, I remember the correction really really well...
Thanks for straightening that out! Erick On Sat, Sep 6, 2014 at 12:58 PM, Joel Bernstein <joels...@gmail.com> wrote: > This folllowing query: > > http://localhost:8080/solr/select?q=malaysian airline crash&rq={!rerank > reRankQuery=$rqq reRankDocs=1000}&rqq=*:*&sort=publish_date > desc&fl=headline,publish_date,score > > Is doing the following: > > The main query is sorted by publish_date. Then the results are reranked by > *:*, which in theory would have no effect at all. > > The reRankQuery only uses the reRankQuery to re-rank the results. The sort > param will always apply to the main query. > > > > > > > > > > > > > Joel Bernstein > Search Engineer at Heliosearch > > > On Sat, Sep 6, 2014 at 2:33 PM, Ravi Solr <ravis...@gmail.com> wrote: > >> Erick, >> Your idea about reversing Joel's suggestion seems to give the best >> results of all the options I tried...but I cant seem to understand why. I >> thought the query shown below should give irrelevant results as sorting by >> date would throw relevancy off...but somehow its getting relevant results >> with fair enough reverse chronology. It is as if the sort is applied after >> the docs are collected and reranked (which is what I wanted). One more >> thing that baffled me was, if I change reRankDocs from 1000 to100 the >> results become irrelevant, which doesnt make sense. >> >> So can you kindly explain whats going on in the following query. >> >> http://localhost:8080/solr/select?q=malaysian airline crash&rq={!rerank >> reRankQuery=$rqq reRankDocs=1000}&rqq=*:*&sort=publish_date >> desc&fl=headline,publish_date,score >> >> I love the solr community, so much to learn from so many knowledgeable >> people. >> >> Thanks >> >> Ravi Kiran Bhaskar >> >> >> >> On Fri, Sep 5, 2014 at 1:23 PM, Erick Erickson <erickerick...@gmail.com> >> wrote: >> >> > OK, why can't you switch the clauses from Joel's suggestion? >> > >> > Something like: >> > q=Malaysia plane crash&rq={!rerank reRankDocs=1000 >> > reRankQuery=$myquery}&myquery=*:*&sort=date+desc >> > >> > (haven't tried this yet, but you get the idea....). >> > >> > Best, >> > Erick >> > >> > On Fri, Sep 5, 2014 at 9:33 AM, Markus Jelsma >> > <markus.jel...@openindex.io> wrote: >> > > Hi - You can already achieve this by boosting on the document's >> recency. >> > The result set won't be exactly ordered by date but you will get the most >> > relevant and recent documents on top. >> > > >> > > Markus >> > > >> > > -----Original message----- >> > >> From:Ravi Solr <ravis...@gmail.com <mailto:ravis...@gmail.com> > >> > >> Sent: Friday 5th September 2014 18:06 >> > >> To: solr-user@lucene.apache.org <mailto:solr-user@lucene.apache.org> >> > >> Subject: Re: Query ReRanking question >> > >> >> > >> Thank you very much for responding. I want to do exactly the opposite >> of >> > >> what you said. I want to sort the relevant docs in reverse chronology. >> > If >> > >> you sort by date before hand then the relevancy is lost. So I want to >> > get >> > >> Top N relevant results and then rerank those Top N to achieve relevant >> > >> reverse chronological results. >> > >> >> > >> If you ask Why would I want to do that ?? >> > >> >> > >> Lets take a example about Malaysian airline crash. several articles >> > might >> > >> have been published over a period of time. When I search for - >> malaysia >> > >> airline crash blackbox - I would want to see "relevant" results but >> > would >> > >> also like to see the the recent developments on the top i.e. >> > effectively a >> > >> reverse chronological order within the relevant results, like telling >> a >> > >> story over a period of time >> > >> >> > >> Hope i am clear. Thanks for your help. >> > >> >> > >> Thanks >> > >> >> > >> Ravi Kiran Bhaskar >> > >> >> > >> >> > >> On Thu, Sep 4, 2014 at 5:08 PM, Joel Bernstein <joels...@gmail.com >> > <mailto:joels...@gmail.com> > wrote: >> > >> >> > >> > If you want the main query to be sorted by date then the top N docs >> > >> > reranked by a query, that should work. Try something like this: >> > >> > >> > >> > q=foo&sort=date+desc&rq={!rerank reRandDocs=1000 >> > >> > reRankQuery=$myquery}&myquery=blah >> > >> > >> > >> > >> > >> > Joel Bernstein >> > >> > Search Engineer at Heliosearch >> > >> > >> > >> > >> > >> > On Thu, Sep 4, 2014 at 4:25 PM, Ravi Solr <ravis...@gmail.com >> > <mailto:ravis...@gmail.com> > wrote: >> > >> > >> > >> > > Can the ReRanking API be used to sort within docs retrieved by a >> > date >> > >> > field >> > >> > > ? Can somebody help me understand how to write such a query ? >> > >> > > >> > >> > > Thanks >> > >> > > >> > >> > > Ravi Kiran Bhaskar >> > >> > > >> > >> > >> > >> >> > > >> > >>
