Publication

A collaborative ontology for `spatialised communication'

2004
Conference Papers

Abstract

The objective of this position paper is to present my research interest in participating in the workshop of the FOIS2004 and secondly, to systematise the reasoning process I undertook so far during the literature review for my PhD work. Hence, the claims raised in this text may be accidentally fuzzy or not supported by proper references.

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2004
Conference Papers

Abstract

Official source

Related concepts (20)

Proper length

Proper length or rest length is the length of an object in the object's rest frame. The measurement of lengths is more complicated in the theory of relativity than in classical mechanics. In classical mechanics, lengths are measured based on the assumption that the locations of all points involved are measured simultaneously. But in the theory of relativity, the notion of simultaneity is dependent on the observer. A different term, proper distance, provides an invariant measure whose value is the same for all observers.

Proper velocity

In relativity, proper velocity (also known as celerity) w of an object relative to an observer is the ratio between observer-measured displacement vector and proper time τ elapsed on the clocks of the traveling object: It is an alternative to ordinary velocity, the distance per unit time where both distance and time are measured by the observer. The two types of velocity, ordinary and proper, are very nearly equal at low speeds. However, at high speeds proper velocity retains many of the properties that velocity loses in relativity compared with Newtonian theory.

Proper time

In relativity, proper time (from Latin, meaning own time) along a timelike world line is defined as the time as measured by a clock following that line. The proper time interval between two events on a world line is the change in proper time, which is independent of coordinates, and is a Lorentz scalar. The interval is the quantity of interest, since proper time itself is fixed only up to an arbitrary additive constant, namely the setting of the clock at some event along the world line.

Related publications (4)

A collaborative ontology for `spatialised communication'

Chat with Graph Search

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