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Re: Graphical help browser
From: |
Søren Hauberg |
Subject: |
Re: Graphical help browser |
Date: |
Mon, 24 Nov 2008 20:52:49 +0100 |
man, 24 11 2008 kl. 14:41 -0500, skrev John Swensen:
> I think I will probably stick with Xapian for now, since it does an
> indexing of the HTML files and all of their content.
Yeah, the stuff I mentioned depends on a fairly intrusive changeset,
that I don't know if will be included. So, I wouldn't depend on it
either :-)
> When searching
> it also gives a percentage that tries to indicate how "good" of a
> match it is. For example, when I search for FFT, it comes up with the
> FFT function as the top of the list, but FFT2 is second and a slew of
> functions that involve the FFT (e.g. fftshift) and lists them in
> according to their rank.
>
> As far as I can tell from the help on lookfor(), it will probably
> return all the same results as Xapian, but doesn't try to rank them in
> any terms of relevance. That being said, Xapian uses an algorithm
> call the BM25 Weighting Scheme for ranking results. See
> http://xapian.org/docs/bm25.html
Sounds quite nice. Perhaps such an algorithm would be nice to have in
'lookfor' ? I don't really see the difference between searching in a
help browser, and using 'lookfor', so I'd prefer if these two functions
shared as much code as possible. This is, however, not trivial as the
help browser runs in a different thread.
Søren
Re: Graphical help browser, Jordi Gutiérrez Hermoso, 2008/11/25