RAND Corporation Paper P-987, Santa Monica, Calif

Between 1946 and 1956, a number of BBC radio broadcasts were made by pioneers in the fields of computing, artificial intelligence and cybernetics. Although no sound recordings of the broadcasts survive, transcripts are held at the BBC's Written Archives Centre at Caversham in the UK. This paper is based on a study of these transcripts, which have received little attention from historians. The paper surveys the range of computer-related broadcasts during 1946-1956 and discusses some recurring themes from the broadcasts, especially the relationship of'artificial intelligence' to human intelligence.

"The modern general-purpose computer can be characterized as the embodiment of a three-point philosophy: (1) There shall exist a way of computing anything computable; (2) The computer shall be so fast that it does not matter how complicated the way is; and (3) Man shall be so intelligent that he will be able to discern the way and instruct the computer." Proceedings of the 1955 Western Joint Computer Conference, Institute of Radio Engineers, New York, pp 101-108, 1955. (Also issued as RAND Technical Report P-620.)

Current issues are now on the Chicago Journals website. Read the latest issue.Since 1950, The British Journal for the Philosophy of Science (BJPS) has presented the best new work in the discipline. Published on behalf of the British Society for the Philosophy of Science, the journal offers innovative and thought-provoking papers that open up new areas of inquiry or shed new light on well-known issues.

The maze can be changed _ any desired mantler by rearranging the partitions between the twen --:five squares. In the maze there is a sensing finger, which can feel the -.:titions of the maze as it comes against them. This finger is moved .- The goal is mounted on a pin which can be slipped into a jack _ any of the twenty-five squares. Thus you can change the problem ..' way you choose, within the limits of the 5 x 5 maze.

' 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.

The entropy is a statistical parameter which measures, in a certain sense, how much information is produced on the average for each letter of a text in the language. If the language is translated into binary digits (0 or 1) in the most efficient way, the entropy // is the average number of binary digits required per letter of the original language. The redundancy, on the other hand, measures the amount of constraint imposed on a text in the language due to its statistical structure, e.g., in English the high frequency of the letter £, the strong tendency of H to follow T or of V to follow Q. It was estimated that when statistical effects extending over not more than eight letters are considered the entropy is roughly 2.3 bits per letter, the redundancy about 50 per cent. Since then a new method has been found for estimating these quantities, which is more sensitive and takes account of long range statistics, influences extending over phrases, sentences, etc.

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.

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

An excellent place to start. In this article, Turing not only proposes the Imitation Game in its original form, but addresses nine different arguments against AI, including Goedel's theorem and consciousness. Several recent arguments against AI are variations on the ones Turing enumerates. 'I propose to consider the question, "Can machines think?" This should begin with definitions of the meaning of the terms "machine" and "think." The definitions might be framed so as to reflect so far as possible the normal use of the words, but this attitude is dangerous....The new form of the problem can be described in terms of a game which we call the "imitation game."' I.—COMPUTING MACHINERY AND INTELLIGENCE. Mind 59, p. 433-460 (PDF from Oxford University Press).