Tech Talk
By

Steven Musil /

CNET/ June 26, 2012, 9:32 AM

Google scientists find evidence of machine learning

binary code and laptops

A neural network created by connecting 16,000 computer processors appears to support biologists' theories on how the human brain identifies objects.

/ iStockphoto
(CNET) Google scientists working in the company's secretive X Labs have made great strides in using computers to simulate the human brain.

Best known for inventing self-driving cars and augmented-reality eyewear, the lab created a neural network for machine learning by connecting 16,000 computer processors and then unleashed it on the Internet. Along the way, the network taught itself to recognize cats.

While the act of finding cats on the Internet doesn't sound all that challenging, the network's performance exceeded researchers' expectations, doubling its accuracy rate in identifying objects from a list of 20,000 items, according to a New York Times report.

To find the cats, the team fed the network thumbnail images chosen at random from more than 10 billion YouTube videos. The results appeared to support biologists' theories that suggest that neurons in the brain are trained to identify specific objects.

"We never told it during the training, 'This is a cat,'" Google fellow Jeff Dean told the newspaper. "It basically invented the concept of a cat."

Falling computing costs has led to significant advancements in areas of computer science such as machine vision, speech recognition, and language translation, The Times noted.

Machine learning is useful for improving translation algorithms and semantic understanding and a favorite topic of Google co-founders Sergey Brin and Larry Page, according to Google.

The article originally appeared at CNET.

© 2012 CBS Interactive Inc.. All Rights Reserved.
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Bojax39 says:
First we teach computers to design and fabricate their own successor CPUs. Then we teach them to build hardware systems to support the new CPUs they have made. Next, we teach them to learn and extrapolate on incomplete data like we do.

Once they can reproduce and think for themselves, they'll get bored with us and POOF! :-)

Will the Frankenstein fable never die?
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Truth_Bee_Told says:
I saw both the Terminator and the Matrix...This can't be good.
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