August 18, 2009

For evolving robots, deception is in the genes

Researchers in Switzerland have developed an experimental system that allows them to track the evolution of social cues. The experiments do not, however, involve the Swiss population. Instead, the individuals involved are small-wheeled robots that compete for food and emit light to signal to their neighbors. Evolution occurs because their behavior is controlled by a set of 33 digital "genes." In a paper that will be released later this week by PNAS, the authors describe how these robots evolve to avoid tipping their competitors off to the site of a food source.

These robots and the ecosystem they "live" in is described in a paper they have published previously in Current Biology. The robots themselves have a floor sensor, wheels, a camera, and light that can display different colors. They're set loose in an arena that contains two hubs, one with food that improves their health, and a second with poison that damages it. The hubs look identical from a distance, and can only be distinguished at close range using the floor sensor.


ars technica

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