Algorithm, Automata, Biological Computation, Brain, Code, Interface, Logic, Mathematics, Neural Networks, PDF, Science

Water Memory

“This paper demonstrates that the waves produced on the surface of water can be used as the medium for a “Liquid State Machine” that pre-processes inputs so allowing a simple perceptron to solve the XOR problem and undertake speech recognition. Interference between waves allows non-linear parallel computation upon simultaneous sensory inputs. Temporal patterns of stimulation are converted to spatial patterns of water waves upon which a linear discrimination can be made. Whereas Wolfgang Maass’ Liquid State Machine requires fine tuning of the spiking neural network parameters, water has inherent self-organising properties such as strong local interactions, time-dependent spread of activation to distant areas, inherent stability to a wide variety of inputs, and high complexity. Water achieves this “for free”, and does so without the time-consuming computation required by realistic neural models. An analogy is made between water molecules and neurons in a recurrent neural network.”

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Earth Computer

“The earth computer conceives of a (computational) device of the same substance as the earth, to be embedded in the earth and embedding a quotation (after Edgar Allen Poe’s The Narrative of Arthur Gordon Pym). The central conceit is the use of the earth itself as a dirty, irrational computational device. An attempt will be made to reproduce common components, such as memory, power supply, and CPU with earth-based elements; a form of computational land art. Techniques borrowed from the semiconductor and computer industry will be applied to the raw earth substrate either in situ (documented actions at Whitby) or as a speculative performance.”

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