reference accuracy

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• Reference class forecasting — predicts the outcome of a planned action based on actual outcomes in a reference class of similar actions to that being forecast. The theories behind reference class forecasting were developed by Daniel Kahneman and Amos Tversky. They helped… …   Wikipedia

• Accuracy and precision — In the fields of science, engineering, industry and statistics, accuracy is the degree of closeness of a measured or calculated quantity to its actual (true) value. Accuracy is closely related to precision, also called reproducibility or… …   Wikipedia

• Accuracy Ratio — Schätzgütemaße für ordinale Insolvenzprognosen messen die Qualität ordinaler Insolvenzprognosen. Ordinale Insolvenzprognosen sind Prognosen über die relativen Ausfallwahrscheinlichkeiten der bewerteten Unternehmen wie „Unternehmen Y fällt mit… …   Deutsch Wikipedia

• Reference antenna — A reference antenna is an antenna with known performance. It is normally used to calibrate other systems.Reference antennas are built with particular care taken to make them simple, robust and repeatable. In a common usage scenario a reference… …   Wikipedia

• Reference clock — In telecommunication, the term reference clock has the following meanings: * A clock with which another clock is compared. * A clock, usually of high stability and accuracy, used to govern a network of mutually synchronized clocks of lower… …   Wikipedia

• reference frame — Physics. See frame of reference (def. 2). [1920 25] * * * or frame of reference Coordinate system that allows description of time and position of points relative to a body. The axes, or lines, emanate from a position called the origin. As a point …   Universalium

• accuracy — The degree to which a measurement, or an estimate based on measurements, represents the true value of the attribute that is being measured. In the laboratory, a. of a test is determined when possible by comparing results from the test in question …   Medical dictionary

• Calculating Demand Forecast Accuracy — upply Chain forecastingUnderstanding customer demand is key to any manufacturer to make and keep sufficient long lead inventory so that customer orders can be correctly met. Forecasts are never perfect but are valuable in better preparedness for… …   Wikipedia

• British national grid reference system — The British national grid reference system is a system of geographic grid references commonly used in Great Britain, different from using latitude and longitude.The Ordnance Survey (OS) devised the national grid reference system, and it is… …   Wikipedia

• High Accuracy Radial Velocity Planet Searcher — The High Accuracy Radial velocity Planet Searcher (HARPS) is a high precision echelle spectrograph installed in 2002 on ESO s 3.6m telescope at La Silla Observatory, with first light achieved February 2003. It is a second generation radial… …   Wikipedia

• Grid reference — A typical map displaying grid reference Grid references define locations on maps using Cartesian coordinates. Grid lines on maps define the coordinate system, and are numbered to provide a unique reference to features. Grid systems vary, but the… …   Wikipedia