Results 251 to 260 of about 747,562 (306)
Dimensional behaviors of direct-printed versus thermoformed clear retainers in relation to changes of inter-piece occlusal contact distribution measured by T-scan after intraoral aging: a prospective clinical study. [PDF]
Prog OrthodJeong H +5 more
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An in-vitro study on factors influencing the accuracy of current intraoral scanners. [PDF]
Sci RepBuhl J, Mehl A, Ender A.
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Clinical prediction of aortic arch anatomy to guide stroke CT angiography protocols: A machine learning study. [PDF]
Neuroradiol JMarquez-Romero JM +4 more
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Exploring Current Trends, Challenges and Future Directions of Intraoral Digital Impression in the Management of Patients with Cleft Lip and/or Palate: A Narrative Literature Review. [PDF]
Children (Basel)Unnikrishnan J +3 more
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Lithuanian Mathematical Journal, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Leipus, R., Viano, M.-C.
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Leipus, R., Viano, M.-C.
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The Review of Economic Studies, 1995
Summary: We introduce a new model for time-varying conditional variances as the most general quadratic version possible within the ARCH class. Hence, it encompasses all the existing restricted quadratic variance functions. Its properties are very similar to those of GARCH models, but avoids some of their criticisms.
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Summary: We introduce a new model for time-varying conditional variances as the most general quadratic version possible within the ARCH class. Hence, it encompasses all the existing restricted quadratic variance functions. Its properties are very similar to those of GARCH models, but avoids some of their criticisms.
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Journal of Business & Economic Statistics, 1991
Abstract This article introduces a semiparametric autoregressive conditional hetero scedasticity (ARCH) model that has conditional first and second moments given by autoregressive moving average and ARCH parametric formulations but a conditional density that is assumed only to be sufficiently smooth to be approximated by a nonparametric ...
Robert F Engle, Gloria Gonzalez-Rivera
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Abstract This article introduces a semiparametric autoregressive conditional hetero scedasticity (ARCH) model that has conditional first and second moments given by autoregressive moving average and ARCH parametric formulations but a conditional density that is assumed only to be sufficiently smooth to be approximated by a nonparametric ...
Robert F Engle, Gloria Gonzalez-Rivera
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Asymptotic Filtering Theory for Univariate Arch Models [PDF]
Econometrica, 1994 The paper deals with estimation of conditional variances with (misspecified) ARCH-models. It employs continuous record asymptotics to approximate the distribution of the measurement error. This allows to compare the efficiency of various ARCH-models, characterize the impact of different kinds of misspecification on efficiency, and to characterize ...
Nelson, Daniel B, Foster, Dean P
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A Class of Nonlinear Arch Models
International Economic Review, 1992Summary: A class of nonlinear ARCH models is suggested. The proposed class encompasses several functional forms of ARCH which have been put forth in the literature. A Lagrange multiplier test is developed to test \textit{R. F. Engle's} ARCH specification [Econometrica 50, 987-1007 (1982; Zbl 0491.62099)] against a wider class of models.
Higgins, Matthew L, Bera, Anil K
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