From: "Nix" <[EMAIL PROTECTED]>
On Wed, 26 Jul 2006, [EMAIL PROTECTED] yowled:
My impression is that the perceptron tries to cluster scores NEAR 5.0
with as much spam as possible over 5.0 and as little ham as possible
over 5.0.
Well, it doesn't *try* to cluster, but since it'll keep tweaking until
as many FPs and FNs as possible are eliminated, it'll tend to end up
with a pair of `humps' near 5.0, and a slight reduction around 5.0
itself.
That's like mashing too boobs into one cup. Lift and
separate is the answer. It works for me so why not others, too.
Your metaphors are worrying, this may be Too Much Information, but, yes,
that is rather similar to what the accumulated mail-score graph looks
like. I *had* been thinking of it as like a jelly mould, but doubtless
now you've poisoned my mind and I won't be able to look at that graph
again without getting, ahem, distracted. :/
I'm a techie. I read science fiction and carry a Swiss Army knife
and a flashlight. (Well, metaphorically... I carry a small pocketknife
and a mini-maglite in my belly pouch.) I was contaminated by this
image back a little while after PCs like the SOL and such became
available by an Analog magazine novella in which the protagonist was
a computer programming student on his way to a summer job he'd gotten
by being just the right kind of goofy for the era. He was in a vehicle
heading for the job musing about his classes and grade curves when the
class had both grad students and undergrad students. The grading curve
was colloquially called a brassiere curve. And I've NEVER been able to
shake that image. It's SO true!
{^_-}
