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ARCH

Autoregressive Conditional Heteroskedasticity

A statistical measure of the average error between a best fit line and actual data that uses past data to predict future performance. General Autoaggressive Conditional Heteroskedasticity is the most common way of doing this. See also: Fractal Distribution.
References in periodicals archive ?
19 Pepe SH: Polynomial and catenary curve fits to human dental arches. J Dent Res.
All the pre-treatment and post-treatment dental stone models of maxillary and mandibular arches were scanned using 3D digital scanner (Maestro 3D, Great lakes, USA) and converted into digital models which could be examined in all the 3 planes of space.
"We also hold the UK's largest stock of inflatable hire arches which currently stands at 14, they are sent out to companies all over UK for races.
After the decision on licensing hours, more than 37,000 people signed a petition and 400 leading creative figures - including Makar Liz Lochhead, novelist Irvine Welsh and members of Mogwai, Belle & Sebastian and Franz Ferdinand - signed an open letter backing The Arches.
Eversendai revealed, The scope of work being undertaken by Eversendai includes connection design; steel material supply; fabrication and erection of the steel arches; installation of the cable net and hangars; as well as the 4000-tonne strand jacking of the visitors centre to a height of 40 metres and hanging it through hangars and cross bracing cables from the arches.
The results of the present study demonstrated that the characteristics of the gill rakers (rakers and spines length, distance between rakers and spines) may vary between gill arches of the same species, and also with the fish size.
When Gary Simpson, who runs Northumberlandbased Heritage Consolidation Ltd, began work on the arches he was surprised to be visited by a local farmer, who offered Gary two 2.5ft hood stones - decorative features which carried water away from the structure and had fallen from the arches many years ago - having had them in his barn since 1992.
Sundt decided to Cast the arches on their sides for efficiency and planned for unconventional post-tensioning, or reinforcement of the concrete with cables, by doing so in three stages.
Usually the palmar arterial arches are typical but several variations can occur.
The project comes after an inspection by Denbighshire Council revealed the condition of the arches had deteriorated, with the central arch no longer conforming to modern standards.
Eid said there would be two identical arches on both sides of the road going to and out of Makkah to show the exact boundaries of the Haram.