Watson goes to college: How the world's smartest PC will revolutionize AI

James Hendler:

In 2011, IBM achieved a quantum leap in artificial intelligence technology when its Watson computer program trounced human champions Ken Jennings and Brad Rutter in a three-day Jeopardy! tourney, taking home the million-dollar prize by outscoring the second place competitor by a three-to-one margin.

Since then, Watson has shown its computing prowess in the world of medicine and in other business settings. However, as was recently announced, IBM decided Watson could use a college education and so will join here us at Rensselaer Polytechnic Institute. With its help, we hope to further advance artificial intelligence in a number of key areas.

The Watson program is already a breakthrough technology in AI. For many years it had been largely assumed that for a computer to go beyond search and really be able to perform complex human language tasks it needed to do one of two things: either it would "understand" the texts using some kind of deep "knowledge representation," or it would have a complex statistical model based on millions of texts.

Watson used very little of either of these. Rather, it uses a lot of memory and clever ways of pulling texts from that memory. Thus, Watson demonstrated what some in AI had conjectured, but to date been unable to prove: that intelligence is tied to an ability to appropriately find relevant information in a very large memory. (Watson also used a lot of specialized techniques designed for the peculiarities of the Jeopardy! game, such as producing questions from answers, but from a purely academic viewpoint that's less important.)

Posted by Jim Zellmer at March 6, 2013 2:34 AM
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