Re: Using Eric Raymond's bogofilter tool within Gnus

[Matthias Andree <ma@dt.e-technik.uni-dortmund.de>]

pinard@iro.umontreal.ca (François Pinard) writes:

> Hello, my friends.
>
> Some of you might be aware of the speedy Graham filter written by Eric Raymond
> last week.  Here is the recipe I cooked for using it from within Gnus.
> Despite a bit rough, a bit raw, it might be usable.  Of course, if you improve
> on it, please tell me, so I can take advantage of your ideas as well! :-)

Sorry to be intrusive, but it looks as though "bogofilter" does not
quite work for me, particularly, the -N option does not work (at least
not in 0.6), and I recently got a lot of false positives although I I
fed 2,000 non-spam mails to bogofilter -n and only one spam-mail to
bogofilter -s. I sent Eric a patch to fix the -N breakage and another
bug report yesterday, and will have to figure what else is going
astray. It may not necessarily be bogofilter, it may also be my doing it
the wrong way.

However, there are at least two competing projects that a "Bayesian"
search on freshmeat dug up, but I have not yet had the time to look at
them. From what it looks, your script could easily also support
spamprobe, it's similar to bogofilter in use, only that it uses
cleartext operation mode specifiers rather than options as -n or -s (as
bogofilter does).

1. spamprobe  http://sourceforge.net/projects/spamprobe/
              uses GNU gdbm

2. bayespam   http://www.garyarnold.com/projects.php
              seems to use some db as well
              but looks targetted at qmail
=====
3. bogofilter http://www.tuxedo.org/~esr/bogofilter/
              uses HP's LGPL Judy in a persistent daemon
              and plain text files

-- 
Matthias Andree