On Fri, Mar  4, 2022 at 11:43:57AM -0500, Tom Lane wrote:
> "Bayer, Samuel" <s...@mitre.org> writes:
> > One concrete question, I suppose, is: the classic TF/IDF search strategy 
> > relies on inverse document frequency, which looks across the corpus. I 
> > can't tell whether that corpus-wide frequency information is taken into 
> > account in either ranking function.
> 
> The documentation is pretty clear that they don't, they just consider each
> document in isolation.  Building a structure that would allow more-global
> info to be taken into account is an interesting project that nobody's
> tackled.

Oh, you mean like, "pizza" is used only in this document vs it being
used in every document.  Should we add some documentation about this or
is it already clear?

-- 
  Bruce Momjian  <br...@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  If only the physical world exists, free will is an illusion.



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