[SAtalk] Site wide Bayes effectiveness with minimal training

2003-08-19 Thread Clayton, Nik [IT]
Hi, Does anyone have any evidence (empircal or anecdotal) as to how well 2.5x fares against 2.4x using Bayes sitewide with minimal training (no more than SA does when autolearning)? It's my understanding (BICBW) that most of the PHRASE rules disappeared in 2.5x in favour of Bayes. Which is all w

RE: [SAtalk] Server Load

2002-11-20 Thread Clayton, Nik [IT]
> I think you're going to run into problems. I would suggest you think > about adding three more of those boxes, maybe more. As a reference, 4 880s with 2 CPUs and 4GB of RAM are currently handling ~ 2.2 million messages a day (in conjunction with MIMEDefang) without breaking in to a serious swe

RE: [SAtalk] A patent on Bayesian (and other methods) ?

2002-11-11 Thread Clayton, Nik [IT]
> Does this Microsoft patent cause trouble? > > Here's the link to the document. > > http://makeashorterlink.com/?V27615462 ifile, at http://www.nongnu.org/ifile/faq.html has been doing client side bayesian filtering since 1996. That should be sufficient prior art. N -- 11

RE: [SAtalk] Consistency between releases

2002-10-16 Thread Clayton, Nik [IT]
> As you can see, almost the same proportion of mail is scored above 5.0 > (I would expect this) - but now only a fraction of said mail is being > blocked as spam. To get the same level of blocking on that second day, > under 2.42, I actually have to lower the threshold from 10 to > 6.6 - not a s

[SAtalk] Observations from the trenches

2002-04-30 Thread Clayton, Nik [IT]
A couple of things I've observed in the recent past that I thought I'd pass on. adversend.com seem to exist solely to send adverts. Which makes deciding what to do with the mail very easy :-) And the spammers seem to be getting a little more creative with their message text to try and avoid s