Re: mass-check, reuse, scores and thoughts

[Justin Mason <jm...@jmason.org>]

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Peter Fritz writes:
> Results are better, feel BAYES_99 is a bit low, but a good start.  Time
> to double check for FN/FPs in my corpus.
> 
> # SUMMARY for threshold 5.0:
> # Correctly non-spam:    314  92.90%
> # Correctly spam:      14688  97.56%
> # False positives:        24  7.10%
> # False negatives:       368  2.44%
> # Average score for spam:  21.294    ham: 1.3
> # Average for false-pos:   7.230  false-neg: 3.0
> # TOTAL:               15394  100.00%
> score BAYES_00                       -2.599 # not mutable
> score BAYES_05                       -0.413 # not mutable
> score BAYES_40                       -1.096 # not mutable
> score BAYES_50                       0.001 # not mutable
> score BAYES_60                       0.372 # not mutable
> score BAYES_80                       2.087 # not mutable
> score BAYES_95                       2.063 # not mutable
> score BAYES_99                       1.886 # not mutable

quite often BAYES_99 fires on the spam that's *really* spammy -- in other
words it doesn't need a high score for many messages to be marked as spam.

in my opinion, it may be worthwhile locking the BAYES_99 scores
to a high value, manually, and not let the Perceptron do this.
I've raised this as an issue at 
http://bugzilla.spamassassin.org/show_bug.cgi?id=4467

- --j.
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