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作者:VARDI, Y; LEE, D
作者单位:Nokia Corporation; Nokia Bell Labs; AT&T
摘要:The problem of recovering an input signal from a blurred output, in an input-output system with linear distortion, is ubiquitous in science and technology. When the blurred output is not degraded by statistical noise the problem is entirely deterministic And amounts to a mathematical inversion of a linear system with positive parameters, Subject to positivity constraints on the solution. We show that all such linear inverse problems with positivity restrictions (LININPOS problems for short) ca...
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作者:GILKS, WR; CLAYTON, DG; SPIEGELHALTER, DJ; BEST, NG; MCNEIL, AJ; SHARPLES, LD; KIRBY, AJ
摘要:We review applications of Gibbs sampling in medicine, involving longitudinal, spatial, covariate measurement and survival models. Applications in immunology, pharmacology, transplantation, cancer screening, industrial epidemiology and genetic epidemiology are discussed.
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作者:LINDLEY, DV; SINGPURWALLA, ND
摘要:The life testing of items that exhibit a distribution of times to failure is undertaken for making decisions such as design qualification and reliability demonstration. In such contexts, procedures based on the Bayesian paradigm have assumed a common prior distribution of item reliability by both the consumer and the manufacturer. In this paper we consider the adversarial situation wherein both parties agree on a statistical model for lifetimes but use different prior distributions. We require...
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作者:CLIFFORD, P; JENNISON, C; WAKEFIELD, J; PHILLIPS, D; FRIGESSI, A; GRAY, AJ; LAWSON, A; FORSTER, J; RAMGOPAL, P; ARSLAN, O; CONSTABLE, PDL; KENT, JT; WOLFF, RCL; HARDING, EF; MIDDLETON, R; DIGGLE, PJ; AYKROYD, RG; BERZUINI, C; BREWER, M; AITKEN, C; CELEUX, G; DIEBOLT, J; CRITCHLEY, F; DIACONIS, P; ROSENTHAL, JS; DIEBOLT, J; ROBERT, CP; GELFAND, AE; LEE, TM; GELMAN, A; RUBIN, DB; GEMAN, D; GEWEKE, J; GEYER, CJ; GIGLI, A; GIVENS, GH; GOODALL, C; JONALASINIO, GD; GRIEVE, AP; HAN, XL; KOLASSA, JE; TANNER, MA; KOOPERBERG, C; LEWIS, SM; LIN, S; THOMPSON, EA; LITTON, CD; BUCK, CE; LIU, CH; LIU, J; MARDIA, KV; MARRIOTT, JM; MOLLER, J; RAFTERY, AE; SHEPHARD, N; SINHA, D; SOKAL, AD; TITTERINGTON, DM; WILSON, JD; YORK, J; MADIGAN, D; SMITH, AFM; ROBERTS, GO; BESAG, J; GREEN, PJ; GILKS, WR; CLAYTON, DG; SPIEGELHALTER, DJ
作者单位:University of Bath; Imperial College London; Consiglio Nazionale delle Ricerche (CNR); University of Strathclyde; University of Abertay Dundee; Loughborough University; Kimberly-Clark; University of Leeds; University of Glasgow; University of Manchester; University of Oxford; Lancaster University; University of Bradford; University of Pavia; University of Edinburgh; University of Warwick; Harvard University; Sorbonne Universite; University of Connecticut; University of California System; University of California Berkeley; University of Massachusetts System; University of Massachusetts Amherst; University of Minnesota System; University of Minnesota Twin Cities; Federal Reserve System - USA; University of Washington; University of Washington Seattle; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; Sapienza University Rome; University of Bristol; University of Rochester; University of Nottingham; University of Leeds; Nottingham Trent University; University of Oxford; New York University
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作者:LI, ZH; ZHANG, CH
作者单位:Rutgers University System; Rutgers University New Brunswick
摘要:Given two Bernoulli populations with unknown means, we consider the problem of sampling x1, x2, ... sequentially from these populations such as to maximize the expected value of the sum S(n) = x1 + x2 + ... + x(n) as n --> infinity. We obtain an asymptotically efficient rule. Simulation studies show that it performs well for moderate values of n.
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作者:WALLACE, CS; FREEMAN, PR
作者单位:University of Leicester
摘要:The minimum message length (MML) technique is applied to the problem of estimating the parameters of a multivariate Gaussian model in which the correlation structure is modelled by a single common factor. Implicit estimator equations are derived and compared with those obtained from a maximum likelihood (ML) analysis. Unlike ML, the MML estimators remain consistent when used to estimate both the factor loadings and the factor scores. Tests on simulated data show the MML estimates to be on aver...
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作者:PERRON, F
摘要:For the problem of estimating the mean of a p-dimensional normal distribution, p > 1, confidence regions based on half-spaces bounded by a hyperplane having the vector of observations as normal are proposed. Confidence regions with exact probability of coverage are constructed. Tables are provided.
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作者:FRYDMAN, H
摘要:Estimation in a three-state Markov process with irreversible transitions in the presence of interval-censored data is considered. A nonparametric maximum likelihood procedure for the estimation of the cumulative transition intensities is presented. A self-consistent estimator of the parameters is defined and it is shown that the maximum likelihood estimator is a self-consistent estimator. This extends the idea of self-consistency introduced by Efron to the estimation of more than one parameter...
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作者:TONG, H; SMITH, RL
作者单位:University of North Carolina; University of North Carolina Chapel Hill
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作者:EBRAHIMI, N; HABIBULLAH, M; SOOFI, ES
作者单位:University of Wisconsin System; University of Wisconsin System; University of Wisconsin Milwaukee
摘要:In this paper a test of fit for exponentiality based on the estimated Kullback-Leibler information is proposed. The procedure is applicable when the exponential parameter is or is not specified under the null hypothesis. The test uses the Vasicek entropy estimate, so to compute it a 'window size' m must first be fixed. A procedure for choosing m for various sample sizes is proposed and corresponding critical values are computed by Monte Carlo simulations. The use of the proposed test is shown ...