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> >
