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Smart Swarms of Bacteria-Inspired Agents with Performance Adaptable Interactions

Figure 2

Illustration of the motion of an individual bacterium and an individual agent.

A. A bacterium's motion in chemical gradients is a biased random walk towards areas of higher chemical concentration. A bacterium makes longer excursions when it moves in areas of higher chemical gradients after which it performs a random switch of direction, known as a tumble. B. The motion of an individual agent is composed of equal sized excursions after which the agent tumbles. The tumble is a change in direction taken from a Gaussian distribution whose variance is a function of the chemical concentration. When the chemical gradient is small, the variance is large, and vice versa.

Figure 2

doi: https://doi.org/10.1371/journal.pcbi.1002177.g002