Saturday, September 11, 2010

The Intelligence Of Crowds In 'The Perfect Swarm' from NPR: Science Friday Podcast

In his book The Perfect Swarm, Len Fisher talks about swarm intelligence -- where the collective ideas of a group add up to better solutions than any individual could have dreamed up, including an example of how UPS reorganized its driving routes using the logic of an ant colony.
Download the NPR Science Friday podcast here. Scientific American had this to say about the book:
Next time you get annoyed when you discover an army of ants marching through your kitchen pantry, think about this: these tiny insects could teach you how to make better decisions in your social, private and professional life. Sounds crazy? Not according to scientist and journalist Len Fisher. In his new book, The Perfect Swarm, he introduces us to the modern science of complexity—how intricate patterns grow out of simple rules. Research shows that such rules underlie the group behaviors of animals, such as bees and locusts, and Fisher explains how we can learn a thing or two from these basic laws. At the heart of the book lies swarm intelligence, a phenomenon that results when large groups of individuals—be they robots or guppies—behave in the same way, and their collective actions (presumably unbeknownst to the individuals) become intelligent. Ant colonies provide a good example, Fisher says. In search of food, individual ants initially roam an area at random. Yet those animals that happen to be on the fastest route to a food source will return to the nest first. The pheromones they lay down on their trail then allow other ants to use that same route. By the time the remaining pioneers return to the nest, more animals will have already laid down more pheromones on the fastest route, which quickly becomes the predominant one.
See also: Emergence: The Connected Lives of Ants, Brains, Cities, and Software, The Essence Of Chaos (The Jessie and John Danz Lecture Series), Chaos: A Very Short Introduction (Very Short Introductions), Nonlinear Dynamics And Chaos: With Applications To Physics, Biology, Chemistry, And Engineering (Studies in Nonlinearity)

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