I just installed an anti-spam filter for the comments on my site. It was written by James Seng, and uses a Bayesian network to detect probable spam -- just like many popular email filters. We'll see how it works. I don't get a lot of spam here, so it may take some time to train it. Meanwhile, I won't have it actually filter anything, so no comments will be lost.
No, I cannot resist adding artificial intelligence to everything, whenever possible.









Good geek.
hln
We use Movable Type at work - I am using it as a news archive and to publish faculty-authored blogs - so I've got to get our IT guys to install the Seng filter. Unfortunately, they don't really understand Movable Type and outsourced its initial installation. :-(
It wasn't that hard to install, but it is still giving a lot of false-positives because it isn't fully trained yet. The instructions that come with it are pretty simple, though.