I think it can, but it's sort of tricky thing to implement. On Tue, Jan 27, 2015 at 10:29 PM, Alexandre Rafalovitch <arafa...@gmail.com> wrote:
> Can this be done as a custom post-filter with the recent Solr improvements? > > Regards, > Alex. > ---- > Sign up for my Solr resources newsletter at http://www.solr-start.com/ > > > On 27 January 2015 at 14:22, Mikhail Khludnev > <mkhlud...@griddynamics.com> wrote: > > Hello, > > if I get you right it's frequently requested feature, but it requires > > really deep hack like > > https://issues.apache.org/jira/browse/LUCENE-6066 > > > > > > > > On Tue, Jan 27, 2015 at 9:28 PM, Jorge Luis Betancourt González < > > jlbetanco...@uci.cu> wrote: > > > >> Hi all, > >> > >> Recently I got an interesting use case that I'm not sure how to > implement, > >> the idea is that the client wants a fixed number of documents, let's > call > >> it N, to appear in the top of the results. Let me explain a little we're > >> working with web documents so the idea is too promote the documents that > >> match the query of the user from a given domain (wikipedia, for > example) to > >> the top of the list. So if I apply a a boost using the boost parameter: > >> > >> > >> > http://localhost:8983/solr/select?q=search&fl=url&boost=map(query($type1query),0,0,1,50)&type1query=host:wikipedia > >> > >> I get *all* the documents from the desired host at the top, but there is > >> no way of limiting the number of documents from the host that are > boosted > >> to the top of the result list (which could lead to several pages of > content > >> from the same host, which is not desired, the idea is to only show N) . > I > >> was thinking in something like field collapsing/grouping but only for > the > >> documents that match my $type1query parameter (host:wikipedia) but I > don't > >> see any way of doing grouping/collapsing on only one group and leave the > >> other results untouched. > >> > >> I although thought on using 2 groups using group.query=host:wikipedia > and > >> group.query=-host:wikipedia, but in this case there is no way of > >> controlling how much documents each independently group will have. > >> > >> In this particular case QueryElevationComponent it's not helping > because I > >> don't want to map all the posible queries I just want to put the some of > >> the results from a certain host in the top of the list, but without > >> boosting all the documents from the same host. > >> > >> Any thoughts or recommendations on this? > >> > >> Thank you, > >> > >> Regards, > >> > >> > >> --------------------------------------------------- > >> XII Aniversario de la creación de la Universidad de las Ciencias > >> Informáticas. 12 años de historia junto a Fidel. 12 de diciembre de > 2014. > >> > >> > > > > > > -- > > Sincerely yours > > Mikhail Khludnev > > Principal Engineer, > > Grid Dynamics > > > > <http://www.griddynamics.com> > > <mkhlud...@griddynamics.com> > -- Sincerely yours Mikhail Khludnev Principal Engineer, Grid Dynamics <http://www.griddynamics.com> <mkhlud...@griddynamics.com>
