Minimax estimation and prediction for random variables with bounded sum
S. Trybuła (1987)
Applicationes Mathematicae
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S. Trybuła (1987)
Applicationes Mathematicae
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S Trybuła (1991)
Applicationes Mathematicae
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Hélène Lescornel, Jean-Michel Loubes, Claudie Chabriac (2014)
ESAIM: Probability and Statistics
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We consider a model selection estimator of the covariance of a random process. Using the Unbiased Risk Estimation (U.R.E.) method, we build an estimator of the risk which allows to select an estimator in a collection of models. Then, we present an oracle inequality which ensures that the risk of the selected estimator is close to the risk of the oracle. Simulations show the efficiency of this methodology.
C Platt, Z Paprzycki (1991)
Applicationes Mathematicae
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Tomáš Herbst (1986)
Commentationes Mathematicae Universitatis Carolinae
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Carles Serrat, Guadalupe Gómez (2007)
SORT
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Several aspects of the analysis of two successive survival times are considered. All the analyses take into account the dependent censoring on the second time induced by the first. Three nonparametric methods are described, implemented and applied to the data coming from a multicentre clinical trial for HIV-infected patients. Visser's and Wang and Wells methods propose an estimator for the bivariate survival function while Gómez and Serrat's method presents a conditional approach for...
Karunamuni, Rohana J. (2002)
International Journal of Mathematics and Mathematical Sciences
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Halima Boudada, Sarra Leulmi (2023)
Kybernetika
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In this work, we introduce a local linear estimator of the conditional mode for a random real response variable which is subject to left-truncation by another random variable where the covariate takes values in an infinite dimensional space. We first establish both of pointwise and uniform almost sure convergences, with rates, of the conditional density estimator. Then, we deduce the strong consistency of the obtained conditional mode estimator. We finally illustrate the outperformance...
S. Trybuła (1991)
Applicationes Mathematicae
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Lesław Gajek, B. Mizera-Florczak (1998)
Applicationes Mathematicae
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Information inequalities for the minimax risk of sequential estimators are derived in the case where the loss is measured by the squared error of estimation plus a linear functional of the number of observations. The results are applied to construct minimax sequential estimators of: the failure rate in an exponential model with censored data, the expected proportion of uncensored observations in the proportional hazards model, the odds ratio in a binomial distribution and the expectation...
Wiktor Oktaba, Joanna Tarasińska (2001)
Applicationes Mathematicae
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The aim of the paper is estimation of the generalized variance of a bivariate normal distribution in the case of a sample with missing observations. The estimator based on all available observations is compared with the estimator based only on complete pairs of observations.