Researchers developed the first AI to date that can intelligently design robots from scratch by compressing billions of years of evolution into mere seconds. It's not only fast but also runs on a lightweight computer and designs wholly novel structures from scratch — without human-labeled, bias-filled datasets.
A team led by Northwestern University researchers has developed the first artificial intelligence to date that can intelligently design robots from scratch.
Kriegman is an assistant professor of computer science, mechanical engineering and chemical and biological engineering at Northwestern's McCormick School of Engineering, where he is a member of the Center for Robotics and Biosystems. David Matthews, a scientist in Kriegman's laboratory, is the paper's first author. Kriegman and Matthews worked closely with co-authors Andrew Spielberg and Daniela Rus and Josh Bongard for several years before their breakthrough discovery.
"Now anyone can watch evolution in action as AI generates better and better robot bodies in real time," Kriegman said."Evolving robots previously required weeks of trial and error on a supercomputer, and of course before any animals could run, swim or fly around our world, there were billions upon billions of years of trial and error. This is because evolution has no foresight. It cannot see into the future to know if a specific mutation will be beneficial or catastrophic.
Now, it was time to see if the robot's simulated behavior -- walking -- was retained in the physical world. The researchers filled the rubber robot body with air, making its three legs expand. When the air deflated from the robot's body, the legs contracted. By continually pumping air into the robot, it repeatedly expanded then contracted -- causing slow but steady locomotion.While the evolution of legs makes sense, the holes are a curious addition.
"When humans design robots, we tend to design them to look like familiar objects," Kriegman said."But AI can create new possibilities and new paths forward that humans have never even considered. It could help us think and dream differently. And this might help us solve some of the most difficult problems we face."Although the AI's first robot can do little more than shuffle forward, Kriegman imagines a world of possibilities for tools designed by the same program.
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