StanfordMLOctave/machine-learning-ex6/ex6/easy_ham/1690.0b46c8163c389f96d88717...

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From jm@jmason.org Wed Sep 18 12:36:24 2002
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To: "Fox" <lds0062@cdc.net>
Cc: "Justin Mason" <yyyy@example.com>, razor-users@example.sourceforge.net
Subject: Re: [Razor-users] HTML Table - Razor Stats using -lm 4
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of "Tue, 17 Sep 2002 18:01:40 EDT." <003d01c25e95$ccf547c0$7c640f0a@mfc.corp.mckee.com>
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"Fox" said:
> Before or after I whitelisted all the legit mailing lists that Razor is
> tagging? I had one false positive in the last four days. Razor tagged some
> guys person-to-person message because he used an ostrich-in-your-face jpeg
> that is probably pretty popular on the net, and -lm 4 means any single
> attachment in a message that is razored, razors the whole message, if I
> understand it correctly.
Razor folks: is -lm documented anywhere? BTW, I notice all my *.conf
files in ~/.razor use "lm = 4" by default anyway.
> No, I am not keeping official tally of false positives. I need to write a
> html interface to do it, and then it would be easy. I imagine you want
> false positive rate per filter. I will work on it tomorrow, and maybe in a
> week I will have some stats for false positives.
Yeah, that'd be cool -- much appreciated! comparing text classifiers
like spam filters, without tracking FPs, is not good. After all, "cat >
/dev/null" gets a 100% hit rate, but without the FP rate figure of, let's
say 90%, you'd never know it was a bad thing to do ;)
--j.