algorithms

The Information Wrangler

He develops new ways to get the most information with the least effort

Carlos Guestrin wants to stop the spread of waterborne disease, design chairs that adjust to your posture, and cure Internet-induced information overload. This might seem a bit overambitious, but Guestrin has developed a single algorithm that can tackle them all.

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Rise of the Game-Playing Machines

We humans are no longer undefeated in the classic game of Go. Next year: the first computer poet laureate

The game of Go has long been a bastion of human brilliance. While computers have gotten steadily better at playing chess and poker, they've had a harder time wrapping their silicon minds around the elegant Japanese strategy game. That's why it's a big deal that a computer Go player known as MoGo beat a top-ranked human, Myungwan Kim, yesterday.

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Leggo My Van Gogh

Scientists develop a database that could pinpoint forgeries once and for all

Detecting art forgeries is an inexact science—even some certified masterpieces have a cloud of doubt over their authenticity. But in recent years James Z. Wang and his colleague Jia Li have been putting Van Gogh under the microscope to create a database they hope will eventually thwart art fakers and revolutionize the detection of forgeries. Using 23 high-resolution gray scale images known to be by Van Gogh, the Penn State team broke the images down into 2.5 x 2.5 inch squares, analyzing “wavelet” based texture features and the geometric characteristics of the master’s brushstrokes.

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