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

Roy Mathew roymath at yahoo.com
Sat Apr 24 07:35:36 EDT 2004


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.
> >
> >
> >
> >
> >
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