I don't quite understand this. We continually decide between different
actions - and, I would argue, very crudely in line with Expected Utility
Theory - we do this by evaluating the options. In that sense, there is
definitely a need to assign values to our every potential action. But my
point is: we do it extremely crudely - more crudely than I'm aware any
program does.
----- Original Message -----
From: "Rafael C.P."
In RL there's no need to assign values to everything, they are derived
from the basic values (i.e. instinct: life, reproduction, food, etc.).
If an individual's organism produces good sensations for ice cream,
it's producing good reinforcement value for ice cream. The organism
can have different values for different food based on it's value for
life. For example, in general, poison tastes bitter and bitter, for
most people, is bad. Sugar is energy, and sweet things are, in
general, good. The same for fat. For the sexual positions, what counts
are the sensations, as with food. And what's not in our instincts is
derived from experience (near things in time and space contribute to
the value). This is the way psicologic traumas are created, also (a
side effect).
On 6/23/07, Mike Tintner <[EMAIL PROTECTED]> wrote:
C P Raphael: > "Reinforcement learning is a simple theory that *only*
solves
problems
> for which we can design value functions."
> In other words... almost anything in real life...
>
What about if the values are EXTREMELY crude and fluctuating - like the
value to you of Mars ice cream vs Ben & Jerry's Phish food or whatever,
and
the value of this sexual position vs that one?
That is, after all, one of the primary functions of emotions - to serve
as
extremely crude and fluctuating evaluations of different actions -
comparisons that are so crude often as to be pre-mathematical. "How much
do
you like that ice cream?" "Well, I like it 'a lot'." "And that one?"
"Well,
a lot too. But maybe 'a bit more'."
Could reinforcement learning still embrace such crudities - or would you
need a totally different kind of programming?
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