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A class of local likelihood methods and near-parametric asymptotics
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UNSPECIFIED (1998) A class of local likelihood methods and near-parametric asymptotics. JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES B-STATISTICAL METHODOLOGY, 60 (Part 4). pp. 709-724. ISSN 1369-7412.
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Abstract
The local maximum likelihood estimate <(theta)over cap>(t) of a parameter in a statistical model f(x, theta) is defined by maximizing a weighted version of the likelihood function which gives more weight to observations in the neighbourhood of t. The paper studies the sense in which f(t, <(theta)over cap>(t)) is closer to the true distribution g(t) than the usual estimate f(t, <(theta)over cap>) is. Asymptotic results are presented for the case in which the model misspecification becomes vanishingly small as the sample size tends to infinity. In this setting, the relative entropy risk of the local method is better than that of maximum likelihood. The form of optimum weights for the local likelihood is obtained and illustrated for the normal distribution.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QA Mathematics | ||||
Journal or Publication Title: | JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES B-STATISTICAL METHODOLOGY | ||||
Publisher: | BLACKWELL PUBL LTD | ||||
ISSN: | 1369-7412 | ||||
Official Date: | 1998 | ||||
Dates: |
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Volume: | 60 | ||||
Number: | Part 4 | ||||
Number of Pages: | 16 | ||||
Page Range: | pp. 709-724 | ||||
Publication Status: | Published |
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