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作者:MacEachern, Steven N.; Rao, Youlan; Wu, Chunjie
作者单位:University System of Ohio; Ohio State University; Shanghai University of Finance & Economics
摘要:In practice, the cumulative sum (CUSUM) control chart is often used to detect small shifts in the mean of a normally distributed process, but it performs poorly for thick-tailed processes and for large shifts. This article provides a robust-likelihood cumulative sum (RLCUSUM) chart that discounts outliers and yet has the ability to detect large shifts quickly. The new chart is motivated by the likelihood underpinnings of the CUSUM. It is based on the likelihood of a variate constructed to ensu...
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作者:Huang, Hsin-Cheng; Chen, Chun-Shu
作者单位:National Central University
摘要:In many fields of science, predicting variables of interest over a study region based on noisy data observed at some locations is an important problem. Two popular methods for the problem are kriging and smoothing splines. The former assumes that the underlying process is stochastic, whereas the latter assumes it is purely deterministic. Kriging performs better than smoothing splines in some situations, but is outperformed by smoothing splines in others. However, little is known regarding sele...
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作者:Raghunathan, Trivellore E.; Xie, Dawei; Schenker, Nathaniel; Parsons, Van L.; Davis, William W.; Dodd, Kevin W.; Feuer, Eric J.
作者单位:University of Michigan System; University of Michigan; University of Pennsylvania; Centers for Disease Control & Prevention - USA; CDC National Center for Health Statistics (NCHS); National Institutes of Health (NIH) - USA; NIH National Cancer Institute (NCI); NIH Division of Cancer Control & Population Sciences
摘要:Cancer surveillance research requires estimates of the prevalence of cancer risk factors and screening for small areas such as counties. Two popular data sources are the Behavioral Risk Factor Surveillance System (BRFSS), a telephone survey conducted by state agencies, and the National Health Interview Survey (NHIS), an area probability sample survey conducted through face-to-face interviews. Both data sources have advantages and disadvantages. The BRFSS is a larger survey and almost every cou...
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作者:Sen, Pranab K.; Tsai, Ming-Tien; Jou, Yuh-Shan
作者单位:University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina; University of North Carolina Chapel Hill
摘要:High-dimensional categorical data models, often with inadequately large sample sizes, crop up in many fields of application. The SARS epidemic, originating in southern China in 2002, had an identified single-stranded and positive-sense RNA virus with large genome size and moderate mutation rate. The present genomic study is used as a prime illustration for motivating appropriate statistical methodology for comprehending the genomic variation in such high-dimensional categorical data models. Be...
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作者:Liu, W.; Hayter, A. J.
作者单位:University of Southampton; University of Denver
摘要:The average width of a simultaneous confidence band has been used by several authors (e.g., Naiman and Piegorsch) as a criterion for the comparison of different confidence bands. In this article the area of the confidence set that corresponds to a confidence band is used as a new criterion. For simple linear regression, comparisons have been carried out under this new criterion between hyperbolic bands, two-segment bands, and three-segment bands, which include constant width bands as special c...
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作者:Stute, Winfried; Xue, Liugen; Zhu, Lixing
作者单位:Justus Liebig University Giessen; Beijing University of Technology; Hong Kong Baptist University; Renmin University of China
摘要:In this article we study inference in parametric-nonparametric errors-in-covariables regression models using an empirical likelihood approach based on validation data. It is shown that the asymptotic behavior of the proposed estimator depends on the ratio of the sizes of the primary sample and the validation sample, respectively. Unlike cases without measurement errors, the limit distribution of the estimator is no longer tractable and cannot be used for constructing confidence regions. Monte ...
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作者:Tian, Lu; Liu, Jun; Wei, L. J.
作者单位:Northwestern University; Harvard University
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作者:Mardia, Kanti V.
作者单位:University of Leeds
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作者:Kalbfleisch, John D.; Jiang, Wenyu
作者单位:University of Michigan System; University of Michigan; Concordia University - Canada
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作者:DuBois Bowman, F.
作者单位:Emory University; Rollins School Public Health
摘要:In vivo functional neuroimaging technology enables the evaluation of behavior-related changes in measured brain activity within specific cortical regions of interest (ROIs). When sufficient neurophysiologic evidence exists to restrict attention to a defined cortical region, an ROI analysis can provide powerful insights regarding neural representations of cognition. emotions. behaviors, and the neuropathology of psychiatric disorders. Given the complexity and abundance of data from neuroimaging...