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Asymptotic normality of a projective estimator of an infinite-dimensional parameter of nonlinear regression

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Abstract

A model of nonlinear regression is studied in infinite-dimensional space. Observation errors are equally distributed and have the identity correlation operator. A projective estimator of a parameter is constructed, and the conditions under which it is true are established. For a parameter that belongs to an ellipsoid in a Hilbert space, we prove that the estimators are asymptotically normal; for this purpose, the representation of the estimator in terms of the Lagrange factor is used and the asymptotics of this factor are studied. An example of the nonparametric estimator of a signal is examined for iterated observations under an additive noise.

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References

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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 45, No. 9, pp. 1205–1214, September, 1993.

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Kukush, A.G. Asymptotic normality of a projective estimator of an infinite-dimensional parameter of nonlinear regression. Ukr Math J 45, 1348–1359 (1993). https://doi.org/10.1007/BF01058633

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  • DOI: https://doi.org/10.1007/BF01058633

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