Hi Erick, Slower queries for getting facets can be tolerated, as long as they don't affect those without facets. The requirement is for a separate query which can get me both term vector and facet counts.
One issue I am facing is that, for a search query I only want the term vectors and facet counts, but not the results/docs. If I set the rows=0, then term vectors are not returned. Could you suggest some way to achieve the above. Also it will be helpful to get a way to get aggregate TF of a term (across all docs in the query). Regards, David On Sat, Feb 8, 2014 at 10:49 AM, Erick Erickson <erickerick...@gmail.com>wrote: > David: > > If you're, say, faceting on fields with lots of unique values, this > will be quite expensive. > No idea whether you can tolerate slower queries or not, just sayin'.... > > Erick > > On Fri, Feb 7, 2014 at 5:35 PM, David Miller <davthehac...@gmail.com> > wrote: > > Thanks Mikhai, > > > > It seems that, this was what I was looking for. Being new to this, I > wasn't > > aware of such a use of facets. > > > > Now I can probably combine the term vectors and facets to fit my > scenario. > > > > Regards, > > Dave > > > > > > On Fri, Feb 7, 2014 at 2:43 PM, Mikhail Khludnev < > mkhlud...@griddynamics.com > >> wrote: > > > >> David, > >> > >> I can imagine that "DF for resultset" is facets! > >> > >> > >> On Fri, Feb 7, 2014 at 11:26 PM, David Miller <davthehac...@gmail.com > >> >wrote: > >> > >> > Hi Mikhail, > >> > > >> > The DF seems to be based on the entire document set. What I require is > >> > based on a the results of a single query. > >> > > >> > Suppose my Solr query returns a set of 50K documents from a superset > of > >> > 10Million documents, I require to calculate the DF just based on the > 50K > >> > documents. But currently it seems to be calculated on the entire doc > set. > >> > > >> > So, is there any way to get the DF or IDF just on basis of the docs > >> > returned by the query? > >> > > >> > Regards, > >> > Dave > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > On Fri, Feb 7, 2014 at 5:15 AM, Mikhail Khludnev < > >> > mkhlud...@griddynamics.com > >> > > wrote: > >> > > >> > > Hello Dave > >> > > you can get DF from http://wiki.apache.org/solr/TermsComponent(invert > >> > it > >> > > yourself) > >> > > then, for certain term you can get number of occurrences per > document > >> by > >> > > http://wiki.apache.org/solr/FunctionQuery#tf > >> > > > >> > > > >> > > > >> > > On Fri, Feb 7, 2014 at 3:58 AM, David Miller < > davthehac...@gmail.com> > >> > > wrote: > >> > > > >> > > > Hi Guys.. > >> > > > > >> > > > I require to obtain Tf-idf score from Solr for a certain set of > >> > > documents. > >> > > > But the catch is that, I needs the IDF (or DF) to be calculated on > >> the > >> > > > documents returned by the specific query and not the entire > corpus. > >> > > > > >> > > > Please provide me some hint on whether Solr has this feature or > if I > >> > can > >> > > > use the Lucene Api directly to achieve this. > >> > > > > >> > > > > >> > > > Thanks in advance, > >> > > > Dave > >> > > > > >> > > > >> > > > >> > > > >> > > -- > >> > > 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> > >> >
