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    Penduga Maksimum Likelihood untuk Parameter Dispersi Model Poisson-Gamma dalam Konteks Pendugaan Area Kecil

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    MIPA_Penduga Maksimum Likelihood untuk Parameter Dispersi Model.pdf (651.4Kb)
    Date
    2008-11-30
    Author
    HADI, Alfian F.
    NUSYIRWAN
    NOTODIPUTRO, Khairil Anwar
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    Abstract
    The Poisson-Gamma (Negative Binomial) distribution is considered to be able to handle overdispersion better than other distributions. Estimation of the dispersion parameter, φ, is thus important in refining the predicted mean when the Empirical Bayes (EB) is used. In GLM’s sense dispersion parameter (φ) have effects at least in two ways, (i) for Exponential Dispersion Family, a good estimator of φ gives a good reflection of the variance of Y, (ii) although, the estimated β doesnt depend on φ, estimating β by maximizing log-likelihood bring us to Fisher’s information matrix that depends on its value. Thus, φ does affect the precision of β, (iii) a precise estimate of φ is important to get a good confidence interval for β. Several estimators have been proposed to estimate the dispersion parameter (or its inverse). The simplest method to estimate φ is the Method of Moments Estimate (MME). The Maximum Likelihood Estimate (MLE) method, first proposed by Fisher and later developed by Lawless with the introduction of gradient elements, is also commonly used. This paper will discuss the use of those above methods estimating φ in Empircal Bayes and GLM’s of Poisson-Gamma model that is applied on Small Area Estimation.
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    https://repository.unej.ac.id/xmlui/handle/123456789/113395
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    • LSP-Conference Proceeding [1877]

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    Indonesia DSpace Group :

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