Turing test

The Turing test is a test, developed by Alan Turing in 1950, of a machine's ability to exhibit intelligent behavior equivalent to, or indistinguishable from, that of a human.

Description

Turing proposed that a human evaluator would judge natural language conversations between a human and a machine that is designed to generate human-like responses. The evaluator would be aware that one of the two partners in conversation is a machine, and all participants would be separated from one another. The conversation would be limited to a text-only channel such as a computer keyboard and screen so that the result would not be dependent on the machine's ability to render words as speech. If the evaluator cannot reliably tell the machine from the human (Turing originally suggested that the machine would convince a human 70% of the time after five minutes of conversation), the machine is said to have passed the test. The test does not check the ability to give correct answers to questions, only how closely answers resemble those a human would give.

The test was introduced by Turing in his paper, "Computing Machinery and Intelligence", while working at the University of Manchester (Turing, 1950; p. 460). It opens with the words: "I propose to consider the question, 'Can machines think?'"

Because "thinking" is difficult to define, Turing chooses to "replace the question by another, which is closely related to it and is expressed in relatively unambiguous words." Turing's new question is: "Are there imaginable digital computers which would do well in the imitation game?" This question, Turing believed, is one that can actually be answered. In the remainder of the paper, he argued against all the major objections to the proposition that "machines can think".

Since Turing first introduced his test, it has proven to be both highly influential and widely criticised, and it has become an important concept in the philosophy of artificial intelligence.

See also

• Artificial intelligence in fiction
• Blindsight
• CAPTCHA
• Causality
• Computer game bot Turing Test
• Explanation
• Explanatory gap
• Functionalism (philosophy of mind)
• Graphics Turing Test
• HAL 9000 (from 2001: A Space Odyssey)
• Ex Machina (film)
• Hard problem of consciousness
• Ideological Turing Test
• Mark V Shaney (USENET bot)
• Mind-body problem
• Mirror neuron
• Natural language processing
• Philosophical zombie
• Problem of other minds
• Reverse engineering
• Sentience
• Simulated reality
• Technological singularity
• Theory of mind
• Uncanny valley
• Voight-Kampff machine (fictitious Turing test from Bladerunner)
• SHRDLU

External links

• Turing test @ Wikipedia.org