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About the computer WATSON, built to play Jeopardy against humans. Explains how they taught the computer (very interesting approach...don't make it rule based, give it lots of examples so it can figure out what is being said, and an "A" looks like, etc). And some unexpected errors it makes because of how it would parse what was said and the information it tapped to decide on an answer. For example, it didn't understand that "the '40s'" meant the 1940s.

http://www.pbs.org/wgbh/nova/tech/smartest-machine-on-earth....

The the right is the "watch the program" button, so you can watch if you are intrigued. I found it very interesting, and I'm not an computer scientist or programmer.
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