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Mathematics x Arts and Humanities x Computing x clear all

abduction

Overview page. Subjects: Arts and Humanities — Computing.

An inference process widely used in artificial intelligence, particularly in expert systems and rule-based systems. In diagnosis, for example, there may be a rule like “if measles then red...

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algebra

Overview page. Subjects: Early Modern History (1500 to 1700) — Computing.

The area of mathematics related to the general properties of arithmetic. Relationships can be summarized by using variables, usually denoted by letters x, y, n,… to stand for unknown...

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ambient light

Overview page. Subjects: Computing — Arts and Humanities.

In photography and 3D graphics, indirect light that does not emanate from a discernible source but is reflected and refracted by surfaces and diffused in the atmosphere.

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amplitude modulation

Overview page. Subjects: Computing — Media Studies.

The process whereby a digital signal is sent over a transmission line by changing the amplitude of a sine wave known as a carrier.

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asymptotic

Overview page. Subjects: Computing — Philosophy.

A line is asymptotic to a curve if the distance between the line and the curve tends to zero as the distance along the curve tends to infinity.

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asynchronous communication

Overview page. Subjects: Computing — Media Studies.

The transmission of data over a communication medium where the time at which a character of the data is sent is not determined by the timing of the sending or receiving of a previous...

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avatar

Overview page. Subjects: Computing — Media Studies.

1 The icon representing the user of a virtual reality system. It is normally displayed in the window of a user's computer.

2 The representation of a user...

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broadcast quality

Overview page. Subjects: Media Studies — Computing.

A standard set of criteria by which television engineers judge whether a programme is technically fit or unfit to be broadcast. These include, on tape-based formats, the picture and audio...

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caret

Overview page. Subjects: Computing — Bibliography.

The symbol ʌ. It is sometimes used to indicate exponentiation as in 10ʌ2 (for 102). It is also used to indicate a control character, as in ʌa (holding down the control key and pressing “a”).

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cast shadow

Overview page. Subjects: Art — Computing.

This is similar to a drop shadow. However, the graphic artist uses techniques which enhance the perspective of the graphic image associated with the shadow.

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