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作者：Bailey, TC; Sapatinas, T; Powell, KJ; Krzanowski, WJ
作者单位：University of Exeter; University of Bristol
摘要：This article considers the use of wavelet methods in relation to a common signal processing problem, that of detecting transient features in sound recordings that contain interference or distortion. In this particular case, the data are various types of underwater sounds, and the objective is to detect intermittent departures (potential signals) from the background sound environment in the data (noise), where the latter may itself be evolving and changing over time. We develop an adaptive mode...
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作者：Chao, A; Tsay, PK
作者单位：National Tsing Hua University
摘要：The concept of sample coverage used in animal abundance estimation is modified to evaluate the undercount of a census. Lack of independence between the census and its postenumeration survey leads to correlation bias for the standard estimator of population size. An additional recapture sample (besides the census and postenumeration survey) can be used to estimate the correlation bias due to two types of dependences. This work expresses the correlation bias for the three-sample model as a funct...
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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：Waternaux, C; Petkova, E; DuMouchel, W
作者单位：New York State Psychiatry Institute; Columbia University; AT&T
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作者：Hansen, M; Kooperberg, C; Sardy, S
作者单位：AT&T; Nokia Corporation; Nokia Bell Labs; Fred Hutchinson Cancer Center; University of Washington; University of Washington Seattle
摘要：In this article we introduce the Triogram method for function estimation using piecewise linear, bivariate splines based on an adaptively constructed triangulation. We illustrate the technique for bivariate regression and log-density estimation and indicate how our approach can be applied directly to model bivariate functions in the broader context of an extended linear model. The entire estimation procedure is invariant under affine transformations and is a natural approach for modeling data ...
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作者：Agresti, A
作者单位：State University System of Florida; University of Florida
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作者：Rotnitzky, A; Robins, JM; Scharfstein, DO
作者单位：Harvard University; Harvard T.H. Chan School of Public Health; Johns Hopkins University
摘要：We consider inference about the parameter beta* indexing the conditional mean of a vector of correlated outcomes given a vector of explanatory variables when some of the outcomes are missing in a subsample of the study and the probability of response depends on both observed and unobserved data values; that is, nonresponse is nonignorable. We propose a class of augmented inverse probability of response weighted estimators that are consistent and asymptotically normal (CAN) for estimating beta*...
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作者：Kadane, JB
作者单位：Carnegie Mellon University
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作者：Yu, KM; Jones, MC
作者单位：Open University - UK
摘要：In this article we study nonparametric regression quantile estimation by kernel weighted local linear fitting. Two such estimators are considered. One is based on localizing the characterization of a regression quantile as the minimizer of E{rho(p)(Y-a)\X = x}, where rho(p) is the appropriate check function. The other follows by inverting a local linear conditional distribution estimator and involves two smoothing parameters, rather than one. Our aim is to present fully operational versions of...
