New WBE implementation
post by Louie
It usually isn't profitable to pay attention to science news, since science journalists largely misintrepret new "breakthroughs". But I am somewhat interested in this story about "artificial brains" coming out of Canada.
Curious what others think of this recent development.
Comments sorted by top scores.
comment by jimrandomh ·
2012-11-30T15:56:59.020Z · LW(p) · GW(p)
The actual project, links to including source code, is here. A link to the paper this article is based on, which I found on HN, here.
Replies from: Wei_Dai
↑ comment by Wei_Dai ·
2012-12-02T18:04:15.907Z · LW(p) · GW(p)
I found a more detailed paper here which actually explains how Spaun works. What they're doing is really pretty far from WBE or even neuromorphic AI. They're wrote down specific algorithms for solving the tasks they wanted Spaun to perform, and then analytically solved for neuron connection weights that would cause their model to implement those algorithms, so essentially just using the simulated brain as a very slow programmable computer.
comment by Wei_Dai ·
2012-12-02T18:48:50.362Z · LW(p) · GW(p)
This isn't WBE or even AGI, because they essentially programed the simulated brain to perform certain specific tasks, by writing down algorithms for doing those tasks and then choosing synaptic connection weights to implement those algorithms. (See this paper for details.) Neuromorphic AI is scary because someone might be able to build an AGI without having to understand general intelligence on an algorithmic level, but that's not how Spaun works, at least not the current iteration of it.
comment by Dr_Manhattan ·
2012-11-30T13:50:57.309Z · LW(p) · GW(p)
Same as you - filed under the "interesting" pile. I think with results like this (published in Science according to Nature) we'll know much more soon as people are going to be lining up to throw more hardware at this.