"We program the robot based on some functions that define the reward the robot is going to get, depending on the construction that they make. They cannot change their own reward. In the case of the child robot, it's distance, so the longer the distance the robot walks, the better the reward it receives," said Rosendo.
After several generations, the "children" were running twice as fast.
"The mother robot generated 500 robots to see what one is good and which one is bad," said Iida.
The researchers suggest the machines could be used in an auto plant, for example, where robot cameras scrutinize each car in the assembly line, evaluate any mistakes, and then design a better car.
Vocabulary
preferential:优先的
incentive: 奖励
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