Turing Learning takes inspiration from the work of pioneering computer scientist Alan Turing, who proposed a test which required a machine to behave indistinguishably from a human in some respect. In this test, an interrogator exchanges messages with two players in a different room: one human, the other a machine. The interrogator has to find out which of the two players is human. If they consistently fail to do so – meaning that they are no more successful than if they had chosen one player at random – the machine has passed the test and is considered to have human-level intelligence.
Turing learning was successfully applied to infer swarm behaviors. We put a swarm of robots under surveillance and wanted to find out which rules caused their movements.To do so, we put a second swarm – made of learning robots – under surveillance as well. The movements of all the robots were recorded, and the motion data shown to interrogators. Unlike in the original Turing test, however, the interrogators in Turing Learning are not human but rather computer programs that learn by themselves. Their task is to distinguish between robots from either swarm. They are rewarded for correctly categorizing the motion data from the original swarm as genuine and those from the other swarm as counterfeit. The learning robots that succeed in fooling an interrogator – making it believe that their motion data were genuine – receive a reward. By doing so, Turing Learning can not only infer the behavioral rules of the swarm but also detect abnormalities in behavior.
Turing Learning could prove useful whenever a behavior is not easily characterizable using metrics, making it suitable for a wide range of applications. For example, computer games, could gain in realism as virtual players could observe and assume characteristic traits of their human counterparts. They would not simply copy the observed behavior, but rather reveal what makes human players distinctive from the rest. Turing Learning could also be used to reveal the workings of some animal collectives, such as, schools of fish or colonies of bees. This could lead to a better understanding of what factors influence the behavior of these animals, and eventually inform policy for their protection.