Nav: Home

How game theory can bring humans and robots closer together

January 07, 2019

Researchers at the University of Sussex, Imperial College London and Nanyang Technological University in Singapore have for the first time used game theory to enable robots to assist humans in a safe and versatile manner.

The research team used adaptive control and Nash equilibrium game theory to programme a robot that can understand its human user's behaviour in order to better anticipate their movements and respond to them.

The researchers believe the breakthrough could help robots complementing humans for sport training, physical rehabilitation or shared driving.

Lead author Dr Yanan Li, Lecturer in Control Engineering at the University of Sussex, said: "It is still very early days in the development of robots and at present, those that are used in a working capacity are not intuitive enough to work closely and safely with human users. By enabling the robot to identify human users' behaviour and exploiting game theory to let the robot optimally react to them, we have developed a system where robots can work along humans as humans do."

In a paper published today in Nature Machine Intelligence, the researchers outline how they adapted game theory for the physical interaction of a robot with a human, and how this can be used to help an impaired stroke survivor retrain their motor control.

Game theory is commonly used to understand how economic agents decide and interact with each other in order to maximise their own gain. To successfully apply game theory to the interaction of a robot and its human user, the researchers had to overcome the issue that the robot cannot know the human's intentions. The researchers thus had to develop a method enabling the robot to identify the human partner while safely and efficiently interacting with their motion.

The reactive robotic programming system enables a robot to continuously learn the human user's control and adapt its own control correspondingly. The robot is able to understand the human user's action and then respond to and assist them to perform tasks successfully and with minimal effort.

Professor Etienne Burdet, Chair in Human Robotics in the Department of Bioengineering at Imperial College London and senior author of the paper, added: "Game theory has had important impacts in economics during the last century and lead to several Nobel prizes such as Nash's one. To apply it for human-robot interaction, it was necessary to understand how the robot can identify the human user's control goals simultaneously to smoothly interacting with them."
-end-


University of Sussex

Related Robots Articles:

Tactile sensor gives robots new capabilities
Eight years ago, Ted Adelson's research group at MIT's Computer Science and Artificial Intelligence Laboratory (CSAIL) unveiled a new sensor technology, called GelSight, that uses physical contact with an object to provide a remarkably detailed 3-D map of its surface.
Researchers question if banning of 'killer robots' actually will stop robots from killing
A University at Buffalo research team has published a paper that implies that the rush to ban and demonize autonomous weapons or 'killer robots' may be a temporary solution, but the actual problem is that society is entering into a situation where systems like these have and will become possible.
Soft robots that mimic human muscles
An EPFL team is developing soft, flexible and reconfigurable robots.
Team of robots learns to work together, without colliding
When you have too many robots together, they get so focused on not colliding with each other that they eventually just stop moving.
Social robots -- programmable by everyone
The startup LuxAI was created following a research project at the Interdisciplinary Centre for Security, Reliability and Trust (SnT) of the University of Luxembourg.
On the path toward molecular robots
Scientists at Hokkaido University have developed light-powered molecular motors that repetitively bend and unbend, bringing us closer to molecular robots.
Gentle strength for robots
A soft actuator using electrically controllable membranes could pave the way for machines that are no danger to humans.
Robots get creative to cut through clutter
Clutter is a special challenge for robots, but new Carnegie Mellon University software is helping robots cope, whether they're beating a path across the moon or grabbing a milk jug from the back of the refrigerator.
Humans can empathize with robots
Toyohashi Tech researchers in cooperation with researchers at Kyoto University have presented the first neurophysiological evidence of humans' ability to empathize with a robot in perceived pain.
Giving robots a more nimble grasp
Engineers at MIT have now hit upon a way to impart more dexterity to simple robotic grippers: using the environment as a helping hand.

Related Robots Reading:

The Wild Robot
by Peter Brown (Author)

The Wild Robot Hardcover Gift Set
by Peter Brown (Author)

Robot Modeling and Control
by Mark W. Spong (Author), Seth Hutchinson (Author), M. Vidyasagar (Author)

Robot-Proof: Higher Education in the Age of Artificial Intelligence (The MIT Press)
by Joseph E. Aoun (Author)

Rise of the Robots: Technology and the Threat of a Jobless Future
by Martin Ford (Author)

Gods and Robots: Myths, Machines, and Ancient Dreams of Technology
by Adrienne Mayor (Author)

I, Robot
by Isaac Asimov (Author)

Ricky Ricotta's Mighty Robot Book Set (7 Volumes)
by Dav Pilkey (Author), Martin Ontiveros (Illustrator)

Robot
by DK (Author), Lucy Rogers (Foreword)

MR. ROBOT: Red Wheelbarrow: (eps1.91_redwheelbarr0w.txt)
by Sam Esmail (Author), Courtney Looney (Author)

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Approaching With Kindness
We often forget to say the words "thank you." But can those two words change how you — and those around you — look at the world? This hour, TED speakers on the power of gratitude and appreciation. Guests include author AJ Jacobs, author and former baseball player Mike Robbins, Dr. Laura Trice, Professor of Management Christine Porath, and former Danish politician Özlem Cekic.
Now Playing: Science for the People

#509 Anisogamy: The Beginning of Male and Female
This week we discuss how the sperm and egg came to be, and how a difference of reproductive interest has led to sexual conflict in bed bugs. We'll be speaking with Dr. Geoff Parker, an evolutionary biologist credited with developing a theory to explain the evolution of two sexes, about anisogamy, sexual reproduction through the fusion of two different gametes: the egg and the sperm. Then we'll speak with Dr. Roberto Pereira, research scientist in urban entomology at the University of Florida, about traumatic insemination in bed bugs.