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Polyworld: Using Evolution to Design Artificial Intelligence


Google Tech Talks November, 8 2007 ABSTRACT This presentation is about a potential shortcut to artificial intelligence by trading mind-design for world-design using artificial evolution. Evolutionary algorithms are a pump for turning CPU cycles into brain designs. With exponentially increasing CPU cycles while our understanding of intelligence is almost a flat-line, the evolutionary route to AI is a centerpiece of most Kurzweilian singularity scenarios. This talk introduces the Polyworld artificial life simulator as well as results from our ongoing attempt to evolve artificial intelligence and further the Singularity. Polyworld is the brain child of Apple Computer Distinguished Scientist Larry Yaeger, who remains the primary developer of Polyworld: http://www.beanblossom.in.us/l... Speaker: Virgil Griffith Virgil Griffith is a first year graduate student in Computation and Neural Systems at the California Institute of Technology. On weekdays he studies evolution, computational neuroscience, and artificial life. He did computer security work until his first year of university when his work got him sued for sedition and espionage. He then decided that security was probably not safest field to be in and he turned his life to science.

Channel: People & Blogs
Uploaded: November 13, 2007 at 10:12 am
Author: googletechtalks

Length: 06:38
Rating: 4.78
Views: 33886

Tags: education  engedu  google  googletechtalks  talk  talks  techtalk  techtalks  

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Video Comments

cyborgtroy (October 6, 2008 at 3:31 am)
Yeah Spore is rly annoying bc it's a game, not anything about evolution. If Spore were evolution you wouldn't even be playing :P
batymun (October 5, 2008 at 11:18 pm)
dicks and cocks
Luftwaffe101 (October 2, 2008 at 12:37 am)
sp sp sp sp sp spit it out!
rmessenger (September 29, 2008 at 6:16 pm)
"Natural selection" is used as an analogue. It's not really natural, but it is selection. You can't have any kind of selection (or evolution) without a cost or fitness function. In nature there are sets of probabilities that act as the "fitness function" although not explicitly stated as a "function"
Colombian459 (September 28, 2008 at 3:24 am)
What? lol then we will never achieve human level intelligence!
EmotionIsIgnorance (September 23, 2008 at 8:53 pm)
in spore they dont evolve they made it look like you do but in fact this is far more closer to evolution.
inthefade (September 16, 2008 at 7:44 am)
You're talking about something different. I'm not talking about AI *learning* what you do, and then trying to counter it, I'm talking about AI that uses a randomly mutating genetic algorithm for behavior and then a fitness function to naturally select more successful behavior. This is a significantly different model for AI, and you are right, it is entirely possible, and maybe someone has tried it already.
DbzmasterdbzNecross (September 16, 2008 at 3:39 am)
inthefade- Err...there are already AI that should be able to do that. In certain games they can temporarily remember moves you do and use them, I'm pretty sure, and if not, it's entirely possible and just hasn't been done yet.
qarnos (September 14, 2008 at 11:07 am)
I challenge the claim that Polyworld is pure natural selection with no fitness function. Virgil mentions that there's a cost function applied to the networks. Obviously, if there is no cost function, then the networks will be filled with a lot of neurons that do nothing, as long as they are being "carried" by a useful neuron. The problem is the cost function is arbitrary. Unless the cost function is subject to natural selection, this is not purely natural. It is essentially a fitness function.
tomakist (September 7, 2008 at 7:08 pm)
While interesting, it will not be useful until you can "harvest" parts of the neural network. The visual subsystem would be useful, if it was 3D. However the self preservation that will evolve will just get in the way (I mean in the short term, way before the system rises up in revolt)

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