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From Robert Muir <rcm...@gmail.com>
Subject Re: Multi-IDF for a single term possible?
Date Tue, 03 Dec 2019 12:58:37 GMT
it is enough to give each its own field.

On Tue, Dec 3, 2019 at 7:57 AM Adrien Grand <jpountz@gmail.com> wrote:

> Is there any reason why you are not storing each DOC_TYPE in its own index?
>
> On Tue, Dec 3, 2019 at 1:50 PM Ravikumar Govindarajan
> <ravikumar.govindarajan@gmail.com> wrote:
> >
> > Hello,
> >
> > We are using TF-IDF for scoring (Yet to migrate to BM25). Different
> > entities (DOC_TYPES) are crunched & stored together in a single index.
> >
> > When it comes to IDF, I find that there is a single value computed across
> > documents & stored as part of TermStats, whereas our documents are not
> > homogeneous. So, a single IDF value doesn't work for us
> >
> > We would like to compute IDF for each <Term/DOC_TYPE> pair, store it &
> > later use the paired-IDF values during query time. Is something like this
> > possible via Codecs or other mechanisms?
> >
> > Any help is much appreciated
> >
> > --
> > Ravi
>
>
>
> --
> Adrien
>
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