Intelligent Machines

The Memory Trick Making Computers Seem Smarter

One startup’s approach to teaching computers to learn shows the value of applying new ideas to machine learning.

After several decades in the doldrums, AI is experiencing quite a renaissance. In recent years, amazing progress has been made using so-called deep learning, training algorithms with large amounts of data so that they can recognize subtle patterns. Such approaches have enabled computers to recognize faces in an image or the text of speech, often with eerily human accuracy.

It’s becoming clear, however, that fundamentally new approaches will be needed if machines are to go demonstrate more meaningful intelligence. One technique, being applied by a Silicon Valley startup called MetaMind, shows how adding novel memory capabilities to deep learning can produce impressive results when it comes to answering questions about the content of images. The company was founded by Richard Socher, a machine-learning expert who left an academic post at Stanford to found the company.

Socher’s creation uses what it calls a dynamic memory network (DMN) to enable computers to infer useful things from various inputs. These let a deep-learning system store and update facts as it parses more information. Previously the company showed how its system can feed on different sentences and figure out how to answer some fairly sophisticated questions that require inference. This ability has now been applied to answering questions about the contents of images.

Richard Socher, founder of MetaMind.

As a piece on MetaMind in the New York Times explains, the results are quite basic, and nothing like as sophisticated as a human’s ability to understand what’s going on in images. But the technology shows how new approaches, especially ones that take inspiration from the way memory seems to work in biological brains, may hold the key to the next big step forward in AI.

(Read more: New York Times, “Computers Are Getting a Dose of Common Sense,” “Teaching Machines to Understand Us,” “Next Big Test for AI: Making Sense of the World”)

Tech Obsessive?
Become an Insider to get the story behind the story — and before anyone else.

Subscribe today

Uh oh–you've read all of your free articles for this month.

Insider Premium

$179.95/yr US PRICE

More from Intelligent Machines

Artificial intelligence and robots are transforming how we work and live.

Want more award-winning journalism? Subscribe to Insider Premium.

  • Insider Premium {! insider.prices.premium !}*

    {! insider.display.menuOptionsLabel !}

    Our award winning magazine, unlimited access to our story archive, special discounts to MIT Technology Review Events, and exclusive content.

    See details+

    What's Included

    Bimonthly home delivery and unlimited 24/7 access to MIT Technology Review’s website.

    The Download. Our daily newsletter of what's important in technology and innovation.

    Access to the Magazine archive. Over 24,000 articles going back to 1899 at your fingertips.

    Special Discounts to select partner offerings

    Discount to MIT Technology Review events

    Ad-free web experience

    First Look. Exclusive early access to stories.

    Insider Conversations. Join in and ask questions as our editors talk to innovators from around the world.

/
You've read all of your free articles this month. This is your last free article this month. You've read of free articles this month. or  for unlimited online access.