On Oct 27, 2009, at 7:41 PM, Hideki Kato wrote:
IMHO, Jeff's idea is still very interesting while the implementation by the staff in Numenta have been going to not right direction.
That was also my opinion. What I thought was strange is that Numenta's implementation doesn't have feed-back connections, which is a corner- stone of the ideas in the book.
Those playouts are done in Cerebellum using some associative memory, I beleive. Then the mechanism, how to communicate with Cerebral, is a mistery, assuming some kind of tree search is done in Cerebral.
It's not so sure to me there's a clear boundary between the activity of the two. It seems the tree search is done in the Cerebral cortex. But that may simply be because we're conscious of it. It's unclear what exactly happens during the unconscious processes. It mays also be a form of tree search that blends in with the conscious process. Knowledge about how the brain works is growing, but I believe it's mostly still a mystery. The way it's being observed currently is mostly like trying to figure out a computer-program by observing a piece of computer-memory on the screen. You see bits flashing on and off but you have to guess what instructed it to do so.
The games in last Meijin-sen in Japan, Iyama vs Cho, may support your thought.
I'm rather out of touch with what happens in tournaments. I've never heard of Iyama and even Cho could be a different one than I know. What happened in that match that is relevant to this discussion?
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