Oxford Index Browse

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...

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...

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.

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

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.

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...

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...

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...

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”).

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.