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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 ?
Fiber-reinforced polymer composites have been used as arch wires for more than a decade.
Decreasing the pH value leading to a decrease in the [E.sub.pit] and passive range for composite arch wire indicated that the pitting corrosion resistance and passivity breakdown resistance of CoAW were more susceptible to the pH variation.
Spire Biomedical, a wholly-owned subsidiary of Spire Corporation (Nasdaq:SPIR) and a provider of surface treatment services for implantable medical devices, announced on Tuesday that the National Institutes of Health (NIH), National Institute of Dental and Craniofacial Research (NIDCR), has awarded Spire a nine-month Small Business Innovation Research (SBIR) Phase I Grant of USD114,173, to develop coatings for dental arch wires used in orthodontics.
The tubes have slots that hold arch wires, elastics, and other gadgets that help move teeth.
The objective of present study was to compare the effect of flurbiprofen and wafers on pain control after initial arch wire placement in terms of decrease in Visual Analogue Scale (VAS) score.
Following the leveling phase, 0.16x0.16 stainless steel arch wire was applied, and lace-back was performed for canine distalization.
We started with the alignment of the upper arch with a 0.014-in nickel--titanium arch wire, and the patient was referred for the extraction of the lower right lateral tooth.
Davidovitch, "The ground rules for arch wire design," Seminars in Orthodontics, vol.
The uprightinog spring was fabricated using 17x 25 Titanium-Molybdenum alloy arch wire (Figure 3).
The gold chain extending from the impacted UR1 was tied to the arch wire passively (Fig.