Industry
Investigations on Synaptic Transmission
' This work was done in collaboration with Drs. But it is attenuated because the electrode computes a weighted average over a volume of a function whose own average is zero. To this external medium, the nerve appears to produce, absorb, then produce current when a spike passes; from this probe's standpoint of view, the impulse is a source, followed by sink, followed by source. Their algebraic sum in time is zero, unless the impulse stops either at the electrode or short of it. In the former case, the preceding source is averaged with the initial part of the sink, but the stationary decaying sink is recorded as a large negative potential with respect to a remote electrode.
A machine that learns
It was named M achina speculatrix. "conditioned reflexes" brought the study The conditioned, 01' neutral, stimulus to which In M spheri-latrix we had:1 reflex. MACHINA SPECULATRIX, photographed by time cx-POSUI'E, is attracted by light in hutch at right. CONDITIONED REFLEX requires this arrangement of nerve cells. With this arrangement the model is reasonably docile.
Statistics for the chess computer and the factor of mobility
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A chess-playing machine
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Programming a computer for playing chess
Full text available for a fee. (The paper was first presented in March 1950 at the National Institute for Radio Engineers Convention in New York.)See also: summary slidesPhilosophical Magazine (Series 7) 41:256-275
Intelligent machinery
The possible ways in which machinery might be made to show intelligent behaviour are discussed. The analogy with the human brain is used as a guiding principle. It is pointed out that the potentialities of the human intelligence can only be realized if suitable education is provided. The investigation mainly centres round an analogous teaching process applied to machines. The idea of an unorganized machine is defined, and it is suggested that the infant human cortex is of this nature. Simple examples of such machines are given, and their education by means of rewards and punishments is discussed.