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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 ?
Key Words: Malocclusion, dental arch, bicuspid, molar and palate.
The second arch gives rise to an operculum that contains the platysma.
Arch Chemicals, a spin-off of The Olin Corporation, has been a sub-tenant at Merritt 7 for more than 10 years.
Many dancers prefer a split-sole design because it articulates the arch and shows off the foot better.
But on Memorial Day weekend this year, rangers were shocked to discover that the top of the arch had crashed to the ground.
However, concern to extend visually the form of the arch inspired the resultant modification to a steel cantilever.
The study emphasizes that consideration should be given to the arch form specific for the particular individual.
Almost one of every five cervical masses in the pediatric population is of branchial arch origin.
Arch, along with its affiliated companies, offers primary and reinsurance coverage for both property/casualty lines on a worldwide basis.
The two structures of primary importance in the transition from agnathan (jawless) fish to gnathostomes were the mandibular arch (gill arch 2) and the hyoid arch (gill arch 3).
The upgrades reflect the upgrade in the rating of Arch Reinsurance Ltd (Bermuda) (see today's press release) which provides explicit support to Arch Europe in the form of an 85% quota share.
A 9-month-old girl was brought to us for evaluation of a right-sided aortic arch and associated tracheal narrowing that was detected on chest x-ray.