Interesting talk from Deb Roy, a researcher of language acquisition in children - he now is working to use that knowledge in artificial intelligence applications.
Deb Roy: The birth of a word
MIT researcher Deb Roy wanted to understand how his infant son learned language -- so he wired up his house with video cameras to catch every moment (with exceptions) of his son's life, then parsed 90,000 hours of home video to watch "gaaaa" slowly turn into "water." Astonishing, data-rich research with deep implications for how we learn.
About Deb: RoyDeb Roy studies how children learn language, and designs machines that learn to communicate in human-like ways. Currently on sabbatical from MIT Media Lab, he's working with the AI company Bluefin Labs.