Re: Gradients
Re: Gradients
- Subject: Re: Gradients
- From: "Bertho Boman" <email@hidden>
- Date: Thu, 30 Oct 2003 14:46:27 -0500
----- Original Message -----
From: "Marc Levine" <email@hidden>
To: <email@hidden>; <email@hidden>
Marc's explanation follows the "makes sense" criteria to me, although
this is not my field.
If one is to measure an egg, or a penguin or any object, the more data
points that are obtained, the better definition of the shape and size of
the object. That is still true even if the individual measurements are
noisy. Actually, it ought to work specially well if the measurements are
a little noisy since more data points will be averaged to provide a
better definition of the object.
Why there apparently are different results in the field is not clear to
me. Do some profiling engines choke on too much data? Do they fail to
internally average the data to provide a smoothed fit or do they take
each point as an inflexible data point?
CD's comment about nailing a carpet vs. stretching it a clever
explanation for the output section of the profile although I do not see
it applying to the input side of the system.
So many question, so little I know on the subject.
Bertho
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