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The BIAS of the maximum likelihood estimators of the von mises-fisher concentration parameters
Authors:DJ Best  NI Fisher
Institution:CSIRO Division of Mathematics and Statistics , Lindfield, Australia
Abstract:It is shown that the bias of the maximum likelihood estimators of the concentration parameters of the von Mises and Fisher distributions is considerable. New estimators which are either nearly unbiased or nearly median unbiased are proposed.
Keywords:circular distribution  spherical distribution  jackknife estimator  simulation
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