Although I symphathize with some of Hawkin's general ideas about unsupervised learning, his current HTM framework is unimpressive in comparison with state-of-the-art techniques such as Hinton's RBM's, LeCun's convolutional nets and the promising low-entropy coding variants.
But it should be quite clear that such methods could eventually be very handy for AGI. For example, many of you would agree that a reliable, computationally affordable solution to Vision is a crucial factor for AGI: much of the world's information, even on the internet, is encoded in audiovisual information. Extracting (sub)symbolic semantics from these sources would open a world of learning data to symbolic systems. An audiovisual perception layer generates semantic interpretation on the (sub)symbolic level. How could a symbolic engine ever reason about the real world without access to such information? Vision may be classified under "Narrow" AI, but I reckon that an AGI can never understand our physical world without a reliable perceptual system. Therefore, perception is essential for any AGI reasoning about physical entities! Greets, Durk On Sun, Mar 30, 2008 at 4:34 PM, Derek Zahn <[EMAIL PROTECTED]> wrote: > > It seems like a reasonable and not uncommon idea that an AI could be built > as a mostly-hierarchical autoassiciative memory. As you point out, it's not > so different from Hawkins's ideas. Neighboring "pixels" will correlate in > space and time; "features" such as edges should become principle components > given enough data, and so on. There is a bunch of such work on > self-organizing the early visual system like this. > > That overall concept doesn't get you very far though; the trick is to make > it work past the first few rather obvious feature extraction stages of > sensory data, and to account for things like episodic memory, language use, > goal-directed behavior, and all other cognitive activity that is not just > statistical categorization. > > I sympathize with your approach and wish you luck. If you think you have > something that produce more than Hawkins has with his HTM, please explain it > with enough precision that we can understand the details. > > ------------------------------ > *agi* | Archives <http://www.listbox.com/member/archive/303/=now> > <http://www.listbox.com/member/archive/rss/303/> | > Modify<http://www.listbox.com/member/?&;>Your Subscription > <http://www.listbox.com> > ------------------------------------------- agi Archives: http://www.listbox.com/member/archive/303/=now RSS Feed: http://www.listbox.com/member/archive/rss/303/ Modify Your Subscription: http://www.listbox.com/member/?member_id=8660244&id_secret=98558129-0bdb63 Powered by Listbox: http://www.listbox.com
