[Zope] Re: querying on a ZCTextIndex (need an example)

Casey Duncan casey at zope.com
Tue Apr 27 22:08:01 EDT 2004


The raw scores are available in the 'data_record_score_' attribute of
each result record. You can also use the 'data_record_normalized_score_'
for a bounded value between 0 and 100.

hth,

-Casey

On Sat, 24 Apr 2004 04:35:36 -0700 (PDT)
Roy Mathew <roymath at yahoo.com> wrote:

> Hi Andreas,
> 
> Thanks for your reply; the Zope Book (online version) is indeed very
> helpful. However, even though it does say that the results are
> returned in weighted order, I cannot find a way to display those
> *weights*. Hence my question.
> 
> | For results that include a text index, your results will be returned
> | in order of revelance of the text search. That is, the result set
> | will be sorted based how often search words appear in the indexes. 
> | A search for the word frog against a text index will give priority
> | toward an object that uses that word many times compared with an
> | object that uses that fewer. This is a simplified version of the way
> | that many web search engines work: the more "relevant" your keywords
> | are to an item, the higher its ordering in the results. In
> | particular, with the ZCTextIndex, you have a choice between two
> | algorithms for how to weight the sorting: Okapi: is the best general
> | choice...
> 
> --- Andreas Jung <andreas at andreas-jung.com> wrote:
> > Have you checked out the documentation in the Zope Book??
> > -aj
> > 
> > --On Freitag, 23. April 2004 15:28 Uhr -0700 Roy Mathew
> > <roymath at yahoo.com> wrote:
> > 
> > > Folks,
> > >
> > > I notice that the documentation asks that ZCTextIndex be used in
> > > place of TextIndex.
> > > Does anyone have any examples of python code for querying a
> > > ZCTextIndex field in a ZCatalog, and
> > > presenting the results and their weights?
> > >
> > > Thanks in advance for any insight.
> > > Roy.
> > >
> > >
> > >
> > >
> > >
> > > __________________________________
> > > Do you Yahoo!?
> > > Yahoo! Photos: High-quality 4x6 digital prints for 25_
> > > http://photos.yahoo.com/ph/print_splash
> > >
> > > _______________________________________________
> > > Zope maillist  -  Zope at zope.org
> > > http://mail.zope.org/mailman/listinfo/zope
> > > **   No cross posts or HTML encoding!  **
> > > (Related lists -
> > >  http://mail.zope.org/mailman/listinfo/zope-announce
> > >  http://mail.zope.org/mailman/listinfo/zope-dev )
> > 
> > 
> > 
> > 
> 
> 
> 
> 	
> 		
> __________________________________
> Do you Yahoo!?
> Yahoo! Photos: High-quality 4x6 digital prints for 25_
> http://photos.yahoo.com/ph/print_splash
> 
> _______________________________________________
> Zope maillist  -  Zope at zope.org
> http://mail.zope.org/mailman/listinfo/zope
> **   No cross posts or HTML encoding!  **
> (Related lists - 
>  http://mail.zope.org/mailman/listinfo/zope-announce
>  http://mail.zope.org/mailman/listinfo/zope-dev )
> 




More information about the Zope mailing list