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OpenAI builds robot hand learns real world moves

Tinuku - Researchers at OpenAI backed by Tesla Inc founder Elon Musk and Silicon Valley financier Sam Altman have found a novel way to use software to teach a human-like robotic hand new tasks. A discovery that could eventually make it more economical to train robots to do things that are easy for humans.

OpenAI, a nonprofit artificial intelligence research group founded in 2015, said on Monday had taught a robotic hand to rotate a lettered, multi-colored block until a desired side of the block faces upward. The task is simple, but the advance was in how the hand gained the skill, all the learning happened in a software simulation and was then transferred to the physical world with relative ease.

Tinuku OpenAI builds robot hand learns real world moves

That solves a challenge for robotic hands, which look like the fist of a robot from the 1980s “Terminator” film. The hands have been commercially available for years but are difficult for engineers to program. Engineers write specific computer code for each new task, which requires a pricey new program each time. Robots also be equipped with software that lets them “learn” through physical training.

Physical training takes months or years and has problems of its own. If a robot hand drops a workpiece, a human needs to pick it up and put it back. That is expensive as well, researchers have sought to chop up those years of physical training and distribute them to multiple computers for a software simulation that can do the training in hours or days without human help.

“Now we’re looking for more complicated tasks to conquer,” said Lilian Weng, a member of the technical staff at OpenAI who worked on the research.

A key advance in the OpenAI research was transferring the robot hand’s software learning to the real world, overcoming what OpenAI researchers call the “reality gap” between the simulation and physical tasks. Researchers injected random noise into the software simulation, making the robot hand’s virtual world messy enough that it was not befuddled by the unexpected in the real world.

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