Embedded Systems Conference
Breaking News
Comments
Oldest First | Newest First | Threaded View
Page 1 / 3   >   >>
stixoffire
User Rank
Author
re: IBM demos cognitive computer chips
stixoffire   8/18/2011 8:30:47 AM
NO RATINGS
Aye'll Be Back.

rbtbob
User Rank
Author
re: IBM demos cognitive computer chips
rbtbob   8/18/2011 11:42:46 AM
NO RATINGS
Someone there at EE Times should ask Ron Neale about this part; "...the more conductive it becomes..."

Volatile Memory
User Rank
Author
re: IBM demos cognitive computer chips
Volatile Memory   8/18/2011 12:56:05 PM
NO RATINGS
Naah, even Apple II's 1Mhz processor could beat humans at "Pong" and read a written letter 7! This is just another scam on the taxpayer, and IBM should be ashamed! The so-called cognitive computer is nothing more than an underpowered curve-fitting device that gets stuck in local extrema, as IBM knows very well. A multi-core CPU with enough DRAM beats IBM's monstrosity in any task, any time.

R G.Neale
User Rank
Author
re: IBM demos cognitive computer chips
R G.Neale   8/18/2011 1:29:24 PM
NO RATINGS
Mr rbtbob-I am aware, and I tried to cover at least one application of a programmable resistance device, the PCM, in neural applications with the work I reported in:- http://www.eetimes.com/design/memory-design/4218114/PCM-Progress-Report-No-4--Brains Here is my quote from PCM PR#4 that I think is applicable in light of the present stagnant state of commercial PCM product development “If, going forward, the dreams of neural network emulation are to be fully realized, the challenges to PCM device designers in terms of precision, discrimination and scaling will exceed, by far, anything that has been accomplished to date.” A quote that is also applicable to all programmable resistance devices, including, CBRAM and ReRAM. Also, with respect, I think you should also be reminded that for the synapse, timing between pre- and post-synaptic pulses as well as conduction change as a function of usage is important.

mdkosloski
User Rank
Author
re: IBM demos cognitive computer chips
mdkosloski   8/18/2011 2:09:13 PM
NO RATINGS
I can't help but find it a bit odd that IBM is still trying to duplicate probabilistic, over-complete, non-orthogonal, impulse integration systems using perfectly ordered and organized grids of binary devices. Might as well write the whole thing in software at that point. Biological neurons don't send signals in one or two defined routes, rather many directions randomized from neuron to neuron often including back to the neurons that originated the signal. It is interesting to note, though, that their learning algorithm does strengthen or "prune" pathways based on use.

rbtbob
User Rank
Author
re: IBM demos cognitive computer chips
rbtbob   8/18/2011 2:29:40 PM
NO RATINGS
Just to keep things straight, almost all neurons send OUT only one signal along one axon. The axon branches at the end and connects to the dendrites of many other neurons. Neurons may have thousands of dendrites receiving signals from other neurons (or receptors) Axons and synapses are like PCM, there is no possible way they could actually work :-)

Volatile Memory
User Rank
Author
re: IBM demos cognitive computer chips
Volatile Memory   8/18/2011 3:43:01 PM
NO RATINGS
PCM brings nothing to the so-called cognitive chip. Even if the cognitive chip made sense (which it does not), its value would be in the connectivity per sq inch (i.e., number of "synapses"), not the storage/counting media.

Volatile Memory
User Rank
Author
re: IBM demos cognitive computer chips
Volatile Memory   8/18/2011 3:45:22 PM
NO RATINGS
rbtbob: Axons and synapses work. PCM doesn't. As demonstrated by JPL/NASA, Samsung, and even Numonyx/Micron.

R_Colin_Johnson
User Rank
Author
re: IBM demos cognitive computer chips
R_Colin_Johnson   8/18/2011 5:23:33 PM
NO RATINGS
This is IBM's first generation device, intentionally created to transfer its supercomputer simulations to a hardware platform. As their simulations become more detailed, IBM will have to deal with all the mentioned issues going forward. (And yes, it is relatively easy to program a computer to play Pong or recognize a numeral, which is why these were good metrics for a very simple chip learning a task on its own.)

rbtbob
User Rank
Author
re: IBM demos cognitive computer chips
rbtbob   8/18/2011 5:43:05 PM
NO RATINGS
On reading your explanation of what Stanford had demonstrated, I was amazed that they could perform a resistance change using such a large number of pulses AND, if I understand your analysis, get the device to repeat the cycle enough to demonstrate a workable functionality. Now the question is whether IBM is pursuing Stanford's scheme or some other? Also, could directional current pulses be used to enable both additive and subtractive resistance changes?

Page 1 / 3   >   >>


Radio
LATEST ARCHIVED BROADCAST
Overview: Battle-hardened veterans of the electronics industry have heard of the “connected car” so often that they assume it’s a done deal. But do we really know what it takes to get a car connected and what its future entails? Join EE Times editor Junko Yoshida as she moderates a panel of movers and shakers in the connected car business. Executives from Cisco, Siemens and NXP will share ideas, plans and hopes for connected cars and their future. After the first 30 minutes of the radio show, our listeners will have the opportunity to ask questions via live online chat.
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Special Video Section
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...