463期

最新文章

• Order-preserving nonparametric regression, with applications to conditional distribution and quantile function estimation AI翻译
  作者：Hall, P; Müller, HG
  作者单位：Australian National University; University of California System; University of California Davis
  摘要：In some regression problems we observe a response Y-ti to level t of a treatment applied to an individual with level Xi of a given characteristic, where it has been established that response is monotone increasing in the level of the treatment. A related problem arises when estimating conditional distributions, where the raw data are typically independent and identically distributed pairs (X-i, Z(i)), and Y-ti denotes the proportion of Z(i)'s.that do not exceed t. We expect the regression mean...
• On ψ-learning AI翻译
  作者：Shen, XT; Tseng, GC; Zhang, XG; Wong, WH
  作者单位：University System of Ohio; Ohio State University; University of Minnesota System; University of Minnesota Twin Cities; Pennsylvania Commonwealth System of Higher Education (PCSHE); University of Pittsburgh; Tsinghua University; Harvard University; Harvard T.H. Chan School of Public Health
  摘要：The concept of large margins have been recognized as an important principle in analyzing learning methodologies, including boosting, neural networks, and support vector machines (SVMs). However, this concept alone is not adequate for learning in nonseparable cases. We propose a learning methodology, called psi-learning, that is derived from a direct consideration of generalization errors. We provide a theory for psi-learning and show that it essentially attains the optimal rates of convergence...
• Wavelet-based nonparametric modeling of hierarchical functions in colon carcinogenesis - Comment AI翻译
  作者：Wu, CO; Huang, JHZ
  作者单位：National Institutes of Health (NIH) - USA; NIH National Heart Lung & Blood Institute (NHLBI); University of Pennsylvania
• Objective Bayesian analysis of spatially correlated data (vol 96, pg 1361, 2001) AI翻译
  作者：Berger, JO; De Oliveira, V; Sansó, B; Ren, CR; Wittig, TA
• Wavelet-based nonparametric modeling of hierarchical functions in colon carcinogenesis - Comment AI翻译
  作者：Clyde, M; George, EI
  作者单位：Duke University; University of Pennsylvania
• Smoothing spline ANOVA for time-dependent spectral analysis AI翻译
  作者：Guo, WS; Dai, M; Ombao, HC; von Sachs, R
  作者单位：University of Pennsylvania; University of Illinois System; University of Illinois Urbana-Champaign; Universite Catholique Louvain
  摘要：In this article we propose a smoothing spline ANOVA model (SS-ANOVA) to estimate and to make inference on the time-varying logspectrum of a locally stationary process. The time-varying spectrum is assumed to be smooth in both time and frequency. This assumption essentially turns a time-frequency spectral estimation problem into a 2-dimensional surface estimation problem. A smooth localized complex exponential (SLEX) basis is used to calculate the initial periodograms, and a SS-ANOVA is fitted ...
• Wavelet-based nonparametric modeling of hierarchical functions in colon carcinogenesis - Rejoinder AI翻译
  作者：Morris, JS; Vannucci, M; Brown, PJ; Carroll, RJ
• Calibrating the degrees of freedom for automatic data smoothing and effective curve checking AI翻译
  作者：Zhang, CM
  作者单位：University of Wisconsin System; University of Wisconsin Madison
  摘要：Curve fitting and curve checking based on the local polynomial regression technique are commonly used data-analytic methods in statistics. This article examines, in nonparametric settings, both the asymptotic expressions and empirical formulas for degrees of freedom (DF), a notion introduced by Hastie and Tibshirani, of linear smoothers. The asymptotic results give useful insights into the nonparametric modeling complexity. Meanwhile, by substituting the exact DFs by the empirical formula, an ...
• Evolutionary similarity among genes AI翻译
  作者：Suchard, MA; Weiss, RE; Sinsheimer, JS; Dorman, KS; Patel, M; McCabe, ERB
  作者单位：University of California System; University of California Los Angeles; University of California Los Angeles Medical Center; David Geffen School of Medicine at UCLA; University of California System; University of California Los Angeles; University of California System; University of California Los Angeles; University of California Los Angeles Medical Center; David Geffen School of Medicine at UCLA; Iowa State University; Iowa State University; University of Toronto; Hospital for Sick Children (SickKids); University of California System; University of California Los Angeles; University of California Los Angeles Medical Center; David Geffen School of Medicine at UCLA
  摘要：An evolutionary history of a set of organisms is a family tree, or topology, with branches of various lengths between vertices that describe how closely the organisms are related to each other. We consider the K evolutionary histories of K genes from a set of N organisms. Evolutionary similarity (ES) occurs when the branching patterns and relative branch lengths in the K evolutionary histories of the genes are the same or nearly the same across the set of organisms. Evolutionary similarity ind...
• Multiple imputation for incomplete data with semicontinuous variables AI翻译
  作者：Javaras, KN; Van Dyk, DA
  作者单位：University of Oxford; University of California System; University of California Irvine
  摘要：We consider the application of multiple imputation to data containing not only partially missing categorical and continuous variables, but also partially missing 'semicontinuous' variables (variables that take on a single discrete value with positive probability but are otherwise continuously distributed). As an imputation model for data sets of this type, we introduce an extension of the standard general location model proposed by Olkin and Tate; our extension, the blocked general location mo...