Home Community Forget Haaland, We Have a Recent Wonderkid: This AI Approach Trains a Bipedal Robot with Deep RL to Teach Agile Football Skills

Forget Haaland, We Have a Recent Wonderkid: This AI Approach Trains a Bipedal Robot with Deep RL to Teach Agile Football Skills

Forget Haaland, We Have a Recent Wonderkid: This AI Approach Trains a Bipedal Robot with Deep RL to Teach Agile Football Skills

Robots have come a good distance since their inception. They turned from easy automated machines to highly sophisticated, artificially intelligent things that may now perform a variety of complex tasks. Today, robots have gotten increasingly involved in our every day lives, and their capabilities are only recovering with time. From robots that help us clean our homes to people who assist in surgical procedures, there appears to be no limit to what these technological marvels can achieve.

Actually, some individuals are even starting to develop emotional connections with their robotic companions. Take, for instance, the story of a person who bought a robotic vacuum cleaner and gave it a reputation. He became so attached to his little robotic friend that he would refer to it, pat it on the top, and even leave it treats. It’s secure to say that robots are quickly becoming an integral a part of our lives and society.

Though, we should not yet done with robots. We still need them to improve at understanding the physical world in a versatile way, not only the precise way we told them. Embodied intelligence has been a long-term goal of AI and robotics researchers. Animals and humans are masters of their bodies, in a position to perform complex movements and use their bodies to effect complex outcomes on the earth. In the long run, we’re still attempting to mimic nature in our research, and we’ve got a protracted method to go to attain this level of flexibility in our gadgets. 

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Recently the progress in learning-based approaches has accelerated in designing intelligent embodied agents with sophisticated motor capabilities. Deep reinforcement learning (deep RL) has been the important thing contributor to this advancement. It has proven able to solving complex motor control problems for simulated characters, including perception-driven whole-body control or multi-agent behaviors.

The most important challenge in developing an intelligent embodied agent is the necessity for them to have a versatile movement set. They must be agile and understand their environment. Because the research has focused on tackling this problem in recent times, there was a necessity for a method to evaluate how well the proposed approaches perform on this context. That’s why sports like football have turn into a testbed for developing sophisticated, long-horizon, multi-skill behaviors that might be composed, adapt to different environmental contexts, and are secure to be executed on real robots.

Football (soccer for our American readers) requires a various set of highly agile and dynamic movements, including running, turning, side stepping, kicking, passing, fall recovery, object interaction, and lots of more, which must be composed in diverse ways. That’s why it’s the perfect method to reveal how advanced your robots have turn into—time to fulfill the star of the show, OP3 Soccer, from DeepMind.

OP3 Soccer is a project with the goal of coaching a robot to play soccer by composing a big selection of skills akin to walking, kicking, scoring, and defending into long-term strategic behavior. Nonetheless, training such a robot is a difficult task because it just isn’t possible to offer the reward for scoring a goal only. Because doing so won’t lead to the specified behaviors attributable to exploration and learning transferable behaviors challenges.

Due to this fact, OP3 Soccer found a sensible method to tackle these challenges. The training is split into two stages. In the primary stage, teacher policies are trained for 2 specific skills: getting up from the bottom and scoring against an untrained opponent. Within the second stage, the teacher policies are used to regularize the agent while it learns to play against increasingly strong opponents. The usage of self-play enables the opponents to extend in strength because the agent improves, prompting further improvement. 

To make sure a smooth transfer from simulation to the real-world, domain randomization, random perturbations, sensor noise, and delays are incorporated into the training in simulation. This approach enables the robot to learn tactics and methods, akin to defending and anticipating the opponent’s moves.

Overall, OP3 Soccer uses deep RL to synthesize dynamic and agile context-adaptive movement skills which are composed by the agent in a natural and fluent manner into complex, long-horizon behavior. The behavior of the agent emerged through a mixture of skill reuse and end-to-end training with easy rewards in a multi-agent setting. The agents were trained in simulation and transferred to the robot, demonstrating that sim-to-real transfer is feasible even for low-cost, miniature humanoid robots.

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Ekrem Çetinkaya received his B.Sc. in 2018 and M.Sc. in 2019 from Ozyegin University, Istanbul, Türkiye. He wrote his M.Sc. thesis about image denoising using deep convolutional networks. He’s currently pursuing a Ph.D. degree on the University of Klagenfurt, Austria, and dealing as a researcher on the ATHENA project. His research interests include deep learning, computer vision, and multimedia networking.


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