What is this 2 GIG file in .spamassassin folder (bayes_toks.new)

[cunoodle2]

When I log into cpanel it says that I am using up 2 gigs of disk space but I did not have any idea as to why I was using so much. Upon further looking into it I found a file called "bayes_toks.new" that is located in my .spamassassin folder. The file is 2524404 k in size. Does anyone have any idea as to what this might be? I have a few spam boxes but have accounts set up in outlook to automatically delete all of these files so I don't think that is the problem. I viewed the contents of the file and it was nothing more than just a bunch of jibberish...was not words or anything like that...just symbols.

Can I clear out this file? What is it used for?

 

[chirpy]

It's to do with the bayesian spam filtering, and you can delete it if you want.

 

[cunoodle2]

What exactly is "bayesian spam filtering" and where would I be able to find more information on it? What exactly is stored in this file?

 

[chirpy]

I'd suggest that you read about it from source:
http://wiki.apache.org/spamassassin/