On 09 March 2002, Kerry Nice said:
> Maybe SA needs to come up with a concept of a profile for a user or a
> company. This would make the installation more involved, but ultimately
> more useful and accurate. Certain rules like your attribution line or
> my customized subject could have local settings built at installation
> time. If you work for a pharmacy, then the rules specific to drugs will
> be zeroed out.
OK, here's an idea on how to implement this:
* define "rule group" as a collection of related rules and a
group score
* any given rule can belong to zero, one, or many rule groups
* if rule A matches on a particular message for a particular
user at a particular site, then it contributes
score(A) * score(G1 with A) * ... * score(Gn with A)
ie. all rule groups to which A belongs affect the score
assigned to A.
* some of the default rule groups and there scores might be:
PORN 1 # discrimnate against porn
ASIA 0 # discrimnate against .cn/.tw/.kr addresses,
# hosts, languages
MONEY 1 # money-grubbing spam rules
DRUGS 1 # pharmaceutical spam rules
* the sys admin determines a "rule profile" for the site, eg.
a company in China, a real estate company, and a bunch of
geeks would all have very different rule profiles; the rule
profile would be set by assigning scores to rule groups
* users could adjust the site rule profile to taste, simply by
assigning different scores to rule groups
One nice side-effect of this design: it gives us a simple and general
way to say, "These are spam-detecting rules" and "These are offset rules
to reduce false positives". Negative scores could be forced by setting
the group score for the anti-false-positive rule group to -1.
Hmmm: putting a rule into two groups, one with a group score < 0 and
another with a group score > 0, could be confusing. Should probably
warn about that case.
Greg
--
Greg Ward - software developer [EMAIL PROTECTED]
MEMS Exchange http://www.mems-exchange.org
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