Evolution in materio: a tone discriminator in liquid crystal
Harding, S.; Miller, J.F.
Evolutionary Computation, 2004. CEC2004. Congress on
Volume 2, Issue , 19-23 June 2004 Page(s): 1800 - 1807 Vol.2
Digital Object Identifier  
Summary: Intrinsic evolution in evolvable hardware research has hitherto been limited to using standard electronic components as the media for problem solving. However, recently it has been argued that because such components are human designed and intentionally has predictable responses; they may not be the optimal medium to use when trying to get a naturally inspired search technique to solve a problem. Evolution has been demonstrated as capable of exploiting the physical properties of material to form solutions; however, by giving evolution only conventional components, we may be placing arbitrary constraints on our ability to solve certain problems. We have shown for the first time, that liquid crystal can be used as the physical substrate for evolution. We demonstrate that it is possible to evolve various functions, including a tone discriminator, in materio.

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