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作者：Spiekerman, CF; Lin, DY
作者单位：University of Washington; University of Washington Seattle
摘要：In this article we propose a general Cox-type regression model to formulate the marginal distributions of multivariate failure time data. This model has a nested structure in that it allows different baseline hazard functions among distinct failure types and imposes a common baseline hazard function on the failure times of the same type. We prove that the maximum quasi-partial-likelihood estimator for the vector of regression parameters under the independence working assumption is consistent a...
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作者：Knight, K; Kustra, R; Tibshirani, R
作者单位：University of Toronto; University of Toronto; University of Toronto; University of Toronto
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作者：Baker, SG
作者单位：National Institutes of Health (NIH) - USA; NIH National Cancer Institute (NCI)
摘要：Many randomized cancer screening trials involve all-or-none compliance. Some subjects randomized to an offer of screening refuse screening, and some subjects randomized to no offer of screening obtain Screening outside the trial. The primary analysis to test whether or not cancer screening reduces cancer mortality is by intent-to-treat. To estimate the cost-effectiveness of screening, it is necessary to adjust for all-or-none compliance. Heretofore, adjustments for all-or-none compliance have ...
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作者：Deaton, A; Ng, S
作者单位：Princeton University; Boston College
摘要：In many public policy problems, we need to estimate the way in which policy changes affect people's behavior. In the analysis of tax and subsidy reform-the topic of this article-we need to know how tax-induced price changes affect the amounts that people buy of the taxed goods. We present various economic and statistical approaches to obtaining the required estimates. We consider the standard structural methods in economics, where the behavior and welfare of individual agents are captured simu...
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作者：Santos, RL
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作者：Kadane, JB
作者单位：Carnegie Mellon University
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作者：Wang, YD; Wahba, G
作者单位：University of California System; University of California Santa Barbara; University of Wisconsin System; University of Wisconsin Madison
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作者：Brehm, J
作者单位：Duke University
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作者：Lancaster, VA; Keller-McNulty, S
作者单位：United States Department of Energy (DOE); Los Alamos National Laboratory
摘要：A composite is formed by collecting multiple sample units and combining them in their entirety or in part, to form a new sample. The sample units that make up the composite may retain their integrity or be homogenized through physical processes such as ball milling, sieving, shaking, or centrifuging. One or more subsequent measurements are taken on the composite and the information on the sample units is lost. This counterintuitive loss of information has fueled opposition to composite samplin...
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作者：Ge, NX; Simpson, DG
作者单位：University of Illinois System; University of Illinois Urbana-Champaign
摘要：Classical discriminant analysis breaks down when the feature vectors are of extremely high dimension; for example, when the basic observation is a random function observed over a fine grid. Alternative methods have been developed assuming a simplified form for the covariance structure. We analyze the high-dimensional asymptotics of some of these methods, emphasizing the effects of correlations such as occur when the baseline is random. For instance, the Euclidean distance classifier, which has...
