-
作者：George, EO; Kodell, RL
作者单位：US Food & Drug Administration (FDA)
摘要：Existing methods of testing for treatment effects for clustered binary data include the beta-binomial, quasilikelihood, and GEE procedures. All of these methods revolve around the mean response and the second-order correlation. However, these two parameters alone do not fully determine the effect of treatment. This article develops nonparametric likelihood ratio procedures to test for independence, heterogeneity, and dose-related trend in dose-response studies involving exchangeable binary dat...
-
作者：GonzalezManteiga, W; Cao, R; Marron, JS
作者单位：Universidade da Coruna; University of North Carolina; University of North Carolina Chapel Hill
摘要：An asymptotic representation of the mean weighted integrated squared error for the kernel-based estimator of the hazard rate in the presence of right-censored samples is obtained for different bootstrap resampling methods. As a consequence, a new bandwidth selector based on the bootstrap is introduced. Very satisfactory simulations results are obtained in comparison to the cross-validation selector for different models, using WARPed (i.e., binned) versions of the estimators.
-
作者：Kass, RE; Wasserman, L
摘要：Subjectivism has become the dominant philosophical foundation for Bayesian inference. Yet in practice, most Bayesian analyses are performed with so-called ''noninformative'' priors, that is, priors constructed by some formal rule. We review the plethora of techniques for constructing such priors and discuss some of the practical and philosophical issues that arise when they are used. We give special emphasis to Jeffreys's rules and discuss the evolution of his viewpoint about the interpretatio...
-
作者：Berk, R; Marcus, R
作者单位：VOLCANI INSTITUTE OF AGRICULTURAL RESEARCH
摘要：Exact simultaneous one-sided confidence intervals for contrasts in m normal means are discussed. The set K of Contrast vectors considered is of one of two forms: Either it is a cone whose coordinates are monotone for a partial ordering defined on the coordinate index set (1,...,m) or it is the polar of such a cone. It is shown that the intervals obtained are inverted from test statistics that may be used for testing the null hypothesis that the mean vector mu lies in the dual (or negative pola...
-
作者：Andrews, DWK; Ploberger, W
作者单位：University of St Andrews
摘要：This article is concerned with tests for serial correlation in time series and in the errors of regression models. In particular, the nonstandard problem of testing for white noise against autoregressive moving average model ARMA(1, 1) alternatives is considered. The likelihood ratio (LR), sup Lagrange multiplier (LM), and exponential average LM and LR tests are shown to be asymptotically admissible for ARMA(1, 1) alternatives. In addition, they are shown to be consistent against all (weakly s...
-
作者：Baglivo, J; Pagano, M; Spino, C
作者单位：Harvard University; Harvard T.H. Chan School of Public Health
摘要：Generating functions provide a simple and elegant way to describe probability or frequency distributions of discrete statistics and, in particular, permutation distributions. They are also a computational tool. Many efficient algorithms, including those described as fast Fourier transform methods, network methods, and multiple shift methods, are different implementations of the recursions needed to evaluate generating functions efficiently. Our goals here are twofold. First, we make the relati...
-
作者：Kooperberg, C; OSullivan, F
摘要：Spatial-temporal decompositions of climatologic fields have been obtained using a range of techniques, including principal component analysis (PCA) and principal oscillation patterns (POPS). PCA decompositions are forced to be correlated to the original held, but they may not capture interesting aspects of temporal variation. On the other hand, POPS decompositions focus on temporal variation but are not forced to correlate to the field. Here we introduce a hybrid of these methods that attempts...
-
作者：Binder, DA
-
作者：Goutis, C; Fearn, T
作者单位：University of London; University College London
摘要：In this article we present a modification of partial least squares regression to account for inherent nonexchangeabilities of the columns of the design matrix. In chemometrics applications it is common to write the matrix as a bilinear form of latent variables and loadings. These loadings are often interpreted as sampled values of functions; hence they should exhibit a degree of smoothness. Our method forces the partial least squares factors to be smooth, by using a roughness penalty motivated...
-
作者：Wells, MT; Yeo, KP
作者单位：National University of Singapore
摘要：In this article we construct a kernel estimate of the probability density function from bivariate data that have been randomly censored. We study the large-sample properties of the proposed estimator using a strong approximation result. We establish consistency and asymptotic normality and give a convenient representation of the kernel density estimator. Simulation studies show that the proposed procedure gives a good estimate of the true density function even when the sample size is moderate....
