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Beep Boop: Teaching Robots to Communicate Like R2-D2

Why do people love R2-D2? Two British researchers are trying to find out

2 min read
Beep Boop: Teaching Robots to Communicate Like R2-D2

It's easy to argue that R2-D2 from Star Wars has more personality than many robots twice its size, but without a face or limbs to speak of, where does it all come from? The answer, of course, is sound. Now U.K. researchers are trying to do the same with real robots, teaching them to communicate information and emotions to humans using beeps, boops, and squeaks.

Robin Read and Tony Belpaeme from Plymouth University's Centre for Robotics and Neural, in the U.K., are investigating the relationship between things like the pitch and rhythm of sounds and their perceived emotional connotations. Funded by the ALIZ-E Project, an European effort to create robots that can form meaningful bonds with humans in a hospital setting, the researchers asked several dozen 6- to 8-year-old kids to try to match sounds with expressions (as performed by Nao):

So, how well did it work out? Here's a summary from the paper, which you can read in full at the link below.

It is striking how children show strong categorical perception when interpreting the robot's utterances. There is no subtlety in their interpretation: the robot is -- in their words -- either sad, happy, angry, scared, surprised or tired, but they seldomly interpret utterances in more subtle emotions. We believe that upon closer inspection categorical perception will be observed in other modalities also, having a significant impact on the design of HRI [human-robot interaction] for younger children: any effort to convey subtlety might be a lost effort.

Non-verbal communication, whether or not subtlety is involved, is going to be a critical skill for human-robot interaction in the short term, since it doesn't require any complex hardware or software to implement and it's generally language and age independent. Roomba owners, for example, will immediately recognize their robots' "I'm charged!" tune. And communication isn't limited to audio, either: remember PR2's needy behaviors from back in 2009?

If we're lucky, we should be hearing a lot more about all this human robot interaction stuff at the ACM/IEEE International Conference on Human Robot Interaction (HRI 2012, if you like to breathe while speaking), which takes place in Boston starting today. 

[ Paper (PDF) ]

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The Bionic-Hand Arms Race

The prosthetics industry is too focused on high-tech limbs that are complicated, costly, and often impractical

12 min read
A photograph of a young woman with brown eyes and neck length hair dyed rose gold sits at a white table. In one hand she holds a carbon fiber robotic arm and hand. Her other arm ends near her elbow. Her short sleeve shirt has a pattern on it of illustrated hands.

The author, Britt Young, holding her Ottobock bebionic bionic arm.

Gabriela Hasbun. Makeup: Maria Nguyen for MAC cosmetics; Hair: Joan Laqui for Living Proof

In Jules Verne’s 1865 novel From the Earth to the Moon, members of the fictitious Baltimore Gun Club, all disabled Civil War veterans, restlessly search for a new enemy to conquer. They had spent the war innovating new, deadlier weaponry. By the war’s end, with “not quite one arm between four persons, and exactly two legs between six,” these self-taught amputee-weaponsmiths decide to repurpose their skills toward a new projectile: a rocket ship.

The story of the Baltimore Gun Club propelling themselves to the moon is about the extraordinary masculine power of the veteran, who doesn’t simply “overcome” his disability; he derives power and ambition from it. Their “crutches, wooden legs, artificial arms, steel hooks, caoutchouc [rubber] jaws, silver craniums [and] platinum noses” don’t play leading roles in their personalities—they are merely tools on their bodies. These piecemeal men are unlikely crusaders of invention with an even more unlikely mission. And yet who better to design the next great leap in technology than men remade by technology themselves?

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