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{"text":[[{"start":6,"text":"An AI-powered robot has beaten expert table tennis players in a landmark machine-over-human triumph in a major competitive sport."}],[{"start":14.75,"text":"The mechanical maestro, known as Ace, uses a network of cameras and AI to achieve the rapid planning and reaction times needed to compete."}],[{"start":22.95,"text":"The invention made by Japanese tech group Sony highlights how researchers are using AI to improve robots’ ability to adapt to physical tasks they have struggled with, particularly those involving people."}],[{"start":35.4,"text":"It follows a race in China at the weekend in which some automated robots outperformed runners, a dramatic improvement on last year."}],[{"start":null,"text":"
"}],[{"start":null,"text":"Sony AI has built a table tennis robot that can beat elite human players under professional rules
"}],[{"start":43.55,"text":"“Table tennis is a game of enormous complexity that requires split-second decisions as well as speed and power,” said Peter Dürr, director of Sony AI in Zurich, who led the Ace project."}],[{"start":56.5,"text":"“This research breakthrough highlights the potential of physical AI agents to perform real-time interactive tasks, and represents a significant step toward creating robots with broader applications in fast, precise and real-time human interactions.”"}],[{"start":72,"text":"Ace beat three out of five elite table tennis players who had more than ten years of training, and scored 48 points versus 70 in two defeats to professionals, according to a paper published in Nature on Wednesday. "}],[{"start":84.6,"text":"The robot had improved further, Sony said: since the paper’s submission, it had played four further matches against humans, beating two elite players and winning one out of two matches against professionals."}],[{"start":96.6,"text":"The robot handled spin and unexpected changes in trajectory caused by the ball clipping the net on its way over, the researchers said. It outscored the elite players in aces — points won directly from serve — by 16 to eight."}],[{"start":null,"text":""}],[{"start":null,"text":"Sony AI robot beat professional table tennis player Mayuka Taira during Project Ace tests
"}],[{"start":109.89999999999999,"text":"The results show how robots are starting to challenge human sporting capabilities after demonstrating superiority in cognitive and screen-based pursuits such as chess, Go and video games. "}],[{"start":121.85,"text":"In a half-marathon in Beijing on Sunday, a robot developed by the smartphone company Honor finished in 50 minutes and 26 seconds — almost seven minutes faster than the men’s world record. "}],[{"start":134.79999999999998,"text":"Researchers not involved in the Ace project hailed it as a milestone but noted the complexity of the visual inputs needed to track the ball’s location and velocity. The system included nine cameras and three so-called gaze-control systems, positioned around the table. "}],[{"start":151.54999999999998,"text":"A big hurdle that remained for robot interactions with humans was how machines behaved when “information is incomplete, situations are ambiguous, and mistakes have serious consequences”, said Johannes Köhler, an assistant professor in Imperial College London’s Department of Mechanical Engineering."}],[{"start":169.14999999999998,"text":"“Those challenges are largely not present here: the robot can see everything it needs to see, the task is highly structured, physical interaction is minimal, and there is little inherent danger,” he said. "}],[{"start":180.45,"text":"“As a result, while the work is technically impressive, I am not convinced it addresses the core safety and uncertainty issues that currently limit autonomous robots operating around people.”"}],[{"start":198.6,"text":""}]],"url":"https://audio.ftcn.net.cn/album/a_1777037280_5175.mp3"}