Re: Where is behavior AI now?

"dpa" <dpa@xxxxxxxxxxxxxxx> wrote in message
news:1156559944.538305.34330@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Does this post relate to your thoughts last march?

<http://list.dprg.org/archive/2006-March/029764.html>


Relate, yes. However, I was apparently cycling back to the same
conclusion via another route, not having that wonder series of exchange
in mind. But perhaps missing the quality of such discussions.

This time I was more interested in filling the gap between 1991 (or so)
and 2006.

So here's the route I was coming this time. Say you have a simple robot.
You know, our simple robots of today hard mostly hardware, extremely
hardware, here I mean, almost no moving parts, no body joints, no
waists, no heads that swivel, seldom knees or elbows, or articulated
finger tips, etc. Mostly hard materials stuck together.

Take jBot as an example. Two motors. That's it. That's the total number
of (significant) outputs. (Yes there's a display you might be able to
read if you chased it down, picked it up, and held it close to your
face, but otherwise, as far as actuators that deal with the world, two
motors, that's it. Likewise there are limited sensors. 5 (or 4 or 6 I
don't exactly remember) sonars are the primary world sensors. Really we
could stop there.

Yes there are stall sensors, but they don't measure the world, they
measure the motors. Yes there are navigational sensors, encoders, IMU
with compass, accelerometers, gyros, gps, but they again monitor the
motors and body of the robot relative to the world, and not the external
world for details to make decisions about the robot. To wit, the compass
doesn't measure the magnetic field to see if there is one, and it's
direction and strength, rather it assumes a constant magnetic field, and
then tries to determine the robots orientation to that existant field.

So to my point from this. How many different behaviors can jBot have? It
has two outputs. It has 1 bank (of 5) rangers to sense the world with.
All the remaining sensors are feedback on what the robot is doing
relative to the world, rather than what the world is like external to
the robot. How many different behaviors (evidenced by output actions)
can jBot have?

1) Left stop, right stop? 2) Left forward, right stop? 3) Left forward,
right forward? 4) ...

How many inputs can those behaviors sense?

Isn't there a limit to the number of interconnections possible?

Isn't there a limit to intelligence given that matrix of combinations?

While we can come up with many names for all sorts of fancy behaviors,
isn't there a limit to how much intelligence can be evidenced with BBR?

Isn't the intelligence of the robot, not in the behaviors at all (which
given a list of all outputs, can be fully described by the states of all
possible outputs), but in the number of ways we can combine those
behaviors to have "emergent" properties?

And there I come full circle again, back to the same place as the March
discussion. Isn't intelligence not in the behaviors themselves, but in
the way they are interconnected, sensed and triggered?

--
Randy M. Dumse
www.newmicros.com
Caution: Objects in mirror are more confused than they appear.


.

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