Together with my advisor, Manuel Blum, I co-invented CAPTCHAs, or computer-generated tests that humans are routinely able to pass but that computers have not mastered (they are the squiggly computer letters that are prevalent across the web).

I watch a lot of TV. That's how I spend most of my time outside of work. If I had more time, I would fill it 100 percent with watching TV.

Because education is such a broad area, I chose to focus on language learning.

Together with my advisor, Manuel Blum, I co-invented CAPTCHAs, or computer-generated tests that humans are routinely able to pass but that computers have not mastered (they are the squiggly computer letters that are prevalent across the web).

I usually make to-do lists with timelines, and pen and paper does the trick for me.

People are good at figuring out what's attractive, and computers are good at quickly searching and finding. You put them together, and bang!

Every time you buy tickets on Ticketmaster, you help to digitize a book.