The Annals of Applied Statistics

最新文章

• UNDERSTANDING RESIDENT MOBILITY IN MILAN THROUGH INDEPENDENT COMPONENT ANALYSIS OF TELECOM ITALIA MOBILE USAGE DATA AI翻译
  作者：Zanini, Paolo; Shen, Haipeng; Truong, Young
  作者单位：Polytechnic University of Milan; University of Hong Kong; University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine
  摘要：We consider an urban planning application where Telecom Italia collected mobile-phone traffic data in the metropolitan area of Milan, Italy, aiming to retrieve meaningful information regarding working, residential, and mobility activities around the city. The independent component analysis (ICA) framework is used to model underlying spatial activities as spatial processes on a lattice independent of each other. To incorporate spatial dependence within the spatial sources, we develop a spatial ...
• DETECTION OF EPIGENOMIC NETWORK COMMUNITY ONCOMARKERS AI翻译
  作者：Bartlett, Thomas E.; Zaikin, Alexey
  作者单位：University of London; University College London; University of London; University College London
  摘要：In this paper we propose network methodology to infer prognostic cancer biomarkers based on the epigenetic pattern DNA methylation. Epigenetic processes such as DNA methylation reflect environmental risk factors, and are increasingly recognised for their fundamental role in diseases such as cancer. DNA methylation is a gene-regulatory pattern, and hence provides a means by which to assess genomic regulatory interactions. Network models are a natural way to represent and analyse groups of such ...
• MODELING CONCURRENCY AND SELECTIVE MIXING IN HETEROSEXUAL PARTNERSHIP NETWORKS WITH APPLICATIONS TO SEXUALLY TRANSMITTED DISEASES AI翻译
  作者：Admiraal, Ryan; Handcock, Mark S.
  作者单位：Murdoch University; University of California System; University of California Los Angeles
  摘要：Network-based models for sexually transmitted disease transmission rely on initial partnership networks incorporating structures that may be related to risk of infection. In particular, initial networks should reflect the level of concurrency and attribute-based selective mixing observed in the population of interest. We consider momentary degree distributions as measures of concurrency and propensities for people of certain types to form partnerships with each other as a measure of attribute-...
• CAPTURE-RECAPTURE ABUNDANCE ESTIMATION USING A SEMI-COMPLETE DATA LIKELIHOOD APPROACH AI翻译
  作者：King, Ruth; McClintock, Brett T.; Kidney, Darren; Borchers, David
  作者单位：University of Edinburgh; National Oceanic Atmospheric Admin (NOAA) - USA; University of St Andrews; University of St Andrews
  摘要：Capture-recapture data are often collected when abundance estimation is of interest. In this manuscript we focus on abundance estimation of closed populations. In the presence of unobserved individual heterogeneity, specified on a continuous scale for the capture probabilities, the likelihood is not generally available in closed form, but expressible only as an analytically intractable integral. Model-fitting algorithms to estimate abundance most notably include a numerical approximation for t...
• SPATIO-TEMPORAL ASSIMILATION OF MODELLED CATCHMENT LOADS WITH MONITORING DATA IN THE GREAT BARRIER REEF AI翻译
  作者：Gladish, Daniel W.; Kuhnert, Petra M.; Pagendam, Daniel E.; Wikle, Christopher K.; Bartley, Rebecca; Searle, Ross D.; Ellis, Robin J.; Dougall, Cameron; Turner, Ryan D. R.; Lewis, Stephen E.; Bainbridge, Zoe T.; Brodie, Jon E.
  作者单位：Commonwealth Scientific & Industrial Research Organisation (CSIRO); University of Missouri System; University of Missouri Columbia; James Cook University
  摘要：Soil erosion and sediment transport into waterways and the ocean can adversely affect water clarity, leading to the deterioration of marine ecosystems such as the iconic Great Barrier Reef (GBR) in Australia. Quantifying a sediment load and its associated uncertainty is an important task in delineating how changes in management practices can contribute to improvements in water quality, and therefore continued sustainability of the GBR. However, monitoring data are spatially (and often temporal...
• TEMPERATURES IN TRANSIENT CLIMATES: IMPROVED METHODS FOR SIMULATIONS WITH EVOLVING TEMPORAL COVARIANCES AI翻译
  作者：Poppick, Andrew; McInerney, David J.; Moyer, Elisabeth J.; Stein, Michael L.
  作者单位：University of Chicago; University of Adelaide; University of Chicago
  摘要：Future climate change impacts depend on temperatures not only through changes in their means but also through changes in their variability. General circulation models (GCMs) predict changes in both means and variability; however, GCM output should not be used directly as simulations for impacts assessments because GCMs do not fully reproduce present-day temperature distributions. This paper addresses an ensuing need for simulations of future temperatures that combine both the observational rec...
• FIBER DIRECTION ESTIMATION, SMOOTHING AND TRACKING IN DIFFUSION MRI AI翻译
  作者：Wong, Raymond K. W.; Lee, Thomas C. M.; Paul, Debashis; Peng, Jie
  作者单位：Iowa State University; University of California System; University of California Davis
  摘要：Diffusion magnetic resonance imaging is an imaging technology designed to probe anatomical architectures of biological samples in an in vivo and noninvasive manner through measuring water diffusion. The contribution of this paper is threefold. First, it proposes a new method to identify and estimate multiple diffusion directions within a voxel through a new and identifiable parametrization of the widely used multi-tensor model. Unlike many existing methods, this method focuses on the estimatio...
• SHRINKAGE OF DISPERSION PARAMETERS IN THE BINOMIAL FAMILY, WITH APPLICATION TO DIFFERENTIAL EXON SKIPPING AI翻译
  作者：Ruddy, Sean; Johnson, Marla; Purdom, Elizabeth
  作者单位：University of California System; University of California Berkeley; University of California System; University of California Berkeley
  摘要：The prevalence of sequencing experiments in genomics has led to an increased use of methods for count data in analyzing high-throughput genomic data to perform analyses. The importance of shrinkage methods in improving the performance of statistical methods remains. A common example is gene expression data, where the counts per gene are often modeled as some form of an overdispersed Poisson. Shrinkage estimates of the per-gene dispersion parameter have led to improved estimation of dispersion,...
• BAYESIAN INFERENCE FOR THE BROWN-RESNICK PROCESS, WITH AN APPLICATION TO EXTREME LOW TEMPERATURES AI翻译
  作者：Thibaud, Emeric; Aalto, Juha; Cooley, Daniel S.; Davison, Anthony C.; Heikkinen, Juha
  作者单位：Colorado State University System; Colorado State University Fort Collins; Finnish Meteorological Institute; Swiss Federal Institutes of Technology Domain; Ecole Polytechnique Federale de Lausanne; Natural Resources Institute Finland (Luke)
  摘要：The Brown-Resnick max-stable process has proven to be well suited for modeling extremes of complex environmental processes, but in many applications its likelihood function is intractable and inference must be based on a composite likelihood, thereby preventing the use of classical Bayesian techniques. In this paper we exploit a case in which the full likelihood of a Brown-Resnick process can be calculated, using componentwise maxima and their partitions in terms of individual events, and we p...
• COAUTHORSHIP AND CITATION NETWORKS FOR STATISTICIANS AI翻译
  作者：Ji, Pengsheng; Jin, Jiashun
  作者单位：University System of Georgia; University of Georgia; Carnegie Mellon University
  摘要：We have collected and cleaned two network data sets: Coauthorship and Citation networks for statisticians. The data sets are based on all research papers published in four of the top journals in statistics from 2003 to the first half of 2012. We analyze the data sets from many different perspectives, focusing on (a) productivity, patterns and trends, (b) centrality and (c) community structures. For (a), we find that over the 10-year period, both the average number of papers per author and the ...