Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

> has built some impressive predictive systems

Do you have any links to examples? I'm not aware of any systems built with HTMs that I'd consider "impressive" relative to what ANNs are doing these days, e.g. learning to play Atari games by watching the screen [1], approaching human performance on object classification in unrestricted images [2], or learning to execute simple python programs by reading the source code [3].

[1] https://medium.com/the-physics-arxiv-blog/the-last-ai-breakt...

[2] http://karpathy.github.io/2014/09/02/what-i-learned-from-com...

[3] http://arxiv.org/abs/1410.4615



Oh don't get me wrong, the things being done with ANNs are incredibly impressive. Far more so than anything I've seen with HTMs to date. I was just pointing out that Jeff is putting his money where his mouth is. Also, much of the resurgence in interest in AI came about 12 years ago in large part due to Jeff's thinking and writings (which was mostly consolidating existing ideas into a cohesive theory), as Andrew Ng and others have stated[1]. Jeff helped kick AI out of a plateau and avoid another AI winter.

For interesting things that Numenta has done, just check their website[2]. Their most popular product is likely Grok[3], which predicts things like server loads. It's nothing that ANNs couldn't do, and ultimately isn't that impressive at face value, but the implementation is interesting and has far reaching implications (w/regards to things like energy efficiency and other areas).

I think the future holds incredible things for ANNs and we'll continue to see great breakthroughs with them, but HTMs hold a lot of promise too. ANNs have been around quite a bit longer and have orders of magnitude more researchers working with them, so I'd argue it's premature to dismiss HTMs just because a handful of researchers in Redwood, CA haven't solved every AI problem within 12 years.

It was only 15-20 years ago that ANNs were considered to have peaked and been surpassed by bayesian networks and support vector machines. How times have changed since then!

[1] http://www.forbes.com/sites/roberthof/2014/08/28/interview-i...

[2] http://numenta.com/

[3] http://numenta.com/grok/




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: