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作者:Navidi, W; Arnheim, N
作者单位:Colorado School of Mines; University of Southern California
摘要:The polymerase chain reaction (PCR) is a procedure by which the DNA in a single cell can be made to replicate many times in a test tube. By amplifying the DNA from individual sperm cells and typing the results, estimates of male recombination fractions can be made, which are valuable for creating genetic maps and locating regions of unusually intense crossover activity on the human genome. Because PCR typing results are subject to random error, stochastic models must be constructed to obtain a...
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作者:MacEachern, SN; Shen, XT
作者单位:University System of Ohio; Ohio State University
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作者:Gatto, R; Jammalamadaka, SR
作者单位:ESSEC Business School; University of California System; University of California Santa Barbara
摘要:A saddlepoint approximation is provided for the distribution function of one M statistic conditional on another M statistic. Many interesting statistics based on dependent quantities (e.g., spacings, multinomial frequencies, rank differences) can be expressed in terms of independent identically distributed random variables conditioned on their sum, so that this conditional saddlepoint approximation yields accurate approximations for the distribution of such statistics. This saddlepoint approxi...
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作者:del Castillo, J; Puig, P
作者单位:Autonomous University of Barcelona
摘要:we show that the likelihood ratio test of exponentiality against singly truncated normal alternatives is the uniformly most powerful unbiased test and can be expressed in terms of the sampling coefficient of variation. This test is closely related to Greenwood's statistic for testing departures from the uniform distribution. We provide a way to approximate the critical points of the test, using saddlepoint methods, that gives a high degree of accuracy.
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作者:Carroll, RJ; Ruppert, D; Stefanski, LA
作者单位:Texas A&M University System; Texas A&M University College Station; Texas A&M University System; Texas A&M University College Station; Cornell University; North Carolina State University
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作者:Albert, J
作者单位:University System of Ohio; Bowling Green State University
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作者:Forbes, F; Raftery, AE
作者单位:University of Washington; University of Washington Seattle
摘要:We consider the problems of image segmentation and classification, and image restoration when the true image is made up of a small number of (unordered) colors. Our emphasis is on both performance and speed; speed has become increasingly important for analyzing large images and multispectral images with many bands, processing large image databases, real-time or near realtime image analysis, and the online analysis of video. Bayesian image analysis provides an elegant solution to these problems...
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作者:Stoffer, DS
作者单位:Pennsylvania Commonwealth System of Higher Education (PCSHE); University of Pittsburgh
摘要:One often collects p individual time series Y-j(t) for j = 1,..., p, where the interest is to discover whether any-and which-of the series contain common signals. Let Y(t) = (Y-1(t),...,Y-p(t))' denote the corresponding p x 1 vector-valued time series with p x p positive definite spectral matrix f(Y)(w). Models are proposed to answer the primary question of which, if any, series have common Spectral power at approximately the same frequency. These models yield a type of complex factor analytic...
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作者:Givens, GH
作者单位:Colorado State University System; Colorado State University Fort Collins
摘要:International Whaling Commission management of aboriginal subsistence whaling will eventually use an aboriginal whaling management procedure (AWMP) chosen from a collection of candidate procedures after grueling simulation testing. An AWMP is a fully automatic algorithm designed to operate on the results of an assessment (i.e., a statistical estimation problem relying on sparse series of whale abundance data) to produce a catch limit in each year of real or simulated management. An AWMP should...
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作者:Aerts, M; Claeskens, G; Hart, JD
作者单位:Hasselt University; Texas A&M University System; Texas A&M University College Station
摘要:General methods for testing the fit of a parametric function are proposed. The idea underlying each method is to accept the prescribed parametric model if and only if it is chosen by a model selection criterion. Several different selection criteria are considered, including one based on a modified version of the Akaike information criterion and others based on various score statistics. The tests have a connection with nonparametric smoothing because they use orthogonal series estimators to det...