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作者：Morris, Emily L.; He, Kevin; Kang, Jian
作者单位：University of Michigan System; University of Michigan
摘要：Neuroimaging studies have a growing interest in learning the association between the individual brain connectivity networks and their clinical char-acteristics. It is also of great interest to identify the sub-brain networks as biomarkers to predict the clinical symptoms, such as disease status, poten-tially providing insight on neuropathology. This motivates the need for devel-oping a new type of regression model where the response variable is scalar, and predictors are networks that are typi...
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作者：Schneble, Marc; Kauermann, Goeran
作者单位：University of Munich
摘要：In the past decades the growing amount of network data lead to many novel statistical models. In this paper we consider so-called geometric networks. Typical examples are road networks or other infrastructure networks. Nevertheless, the neurons or the blood vessels in a human body can also be interpreted as a geometric network embedded in a three-dimensional space. A network-specific metric, rather than the Euclidean metric, is usually used in all these applications, making the analyses of net...
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作者：Wang, Tianhao; Yu, Lei; Leurgans, Sue E.; Wilson, Robert S.; Bennett, David A.; Boyle, Patricia A.
作者单位：Rush University
摘要：In studies of cognitive aging, it is crucial to distinguish subtypes of longitudinal cognition change while accounting for the effects of given covariates. The longitudinal cognition trajectories and the covariate effects can both be nonlinear with heterogeneous shapes that do not follow a simple parametric form, where flexible functional methods are preferred. However, most functional clustering methods for longitudinal data do not allow controlling for the possible functional effects of cova...
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作者：Clarke, Paul S.; Bao, Yanchun
作者单位：University of Essex; University of Essex
摘要：Until recently, the survey mode of the household panel study Understanding Society was mainly face-to-face interview, but it has now adopted a mixed-mode design where individuals can self-complete the questionnaire via the web. As mode is known to affect survey data, a randomized mixedmode experiment was implemented during the first year of the two-yearWave 8 fieldwork period to assess the impact of this change. The experiment involved a sequential design that permits the identification of mod...
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作者：Mastrantonio, Gianluca
作者单位：Polytechnic University of Turin
摘要：GPS technology is currently easily accessible to researchers, and many animal movement data sets are available. Two of the main features that a model which describes an animal's path can possess are directional persistence and attraction to a point in space. In this work, we propose a new approach that can have both characteristics. Our proposal is a hidden Markov model with a new emission distribution. The emission distribution models the two aforementioned characteristics, while the latent s...
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作者：Sun, Hu; Hua, Zhijun; Ren, Jiaen; Zou, Shasha; Sun, Yuekai; Chen, Yang
作者单位：University of Michigan System; University of Michigan; University of Michigan System; University of Michigan
摘要：The total electron content (TEC) maps can be used to estimate the signal delay of GPS due to the ionospheric electron content between a receiver and satellite. This delay can result in GPS positioning error. Thus, it is important to monitor the TEC maps. The observed TEC maps have big patches of missingness in the ocean and scattered small areas of missingness on the land. In this paper we propose several extensions of existing matrix completion algorithms to achieve TEC map reconstruction, ac...
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作者：Held, Leonhard; Micheloud, Charlotte; Pawel, Samuel
作者单位：Swiss School of Public Health (SSPH+); University of Zurich
摘要：Replication studies are increasingly conducted in order to confirm original findings. However, there is no established standard how to assess replication success, and, in practice, many different approaches are used. The purpose of this paper is to refine and extend a recently proposed reverse-Bayes approach for the analysis of replication studies. We show how this method is directly related to the relative effect size, the ratio of the replication to the original effect estimate. This perspec...
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作者：Jones, David E.; Stenning, David C.; Ford, Eric B.; Wolpert, Robert L.; Loredo, Thomas J.; Gilbertson, Christian; Dumusque, Xavier
作者单位：Texas A&M University System; Texas A&M University College Station; Simon Fraser University; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; Duke University; Cornell University; University of Geneva
摘要：The radial velocity method is one of the most successful techniques for detecting exoplanets. It works by detecting the velocity of a host star, induced by the gravitational effect of an orbiting planet, specifically, the velocity along our line of sight which is called the radial velocity of the star. Low-mass planets typically cause their host star to move with radial velocities of 1 m/s or less. By analyzing a time series of stellar spectra from a host star, modern astronomical instruments ...
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作者：Zhu, Shixiang; Xie, Yao
作者单位：University System of Georgia; Georgia Institute of Technology
摘要：Crimes emerge out of complex interactions of human behaviors and situations. Linkages between crime incidents are highly complex. Detecting crime linkage, given a set of incidents, is a highly challenging task since we only have limited information, including text descriptions, incident times, and locations. In practice, there are very few labels. We propose a new statistical modeling framework for spatiotemporal-textual data and demonstrate its usage on crime linkage detection. We capture lin...
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作者：Embleton, Jonathan; Knight, Marina I.; Ombao, Hernando
作者单位：University of York - UK; King Abdullah University of Science & Technology
摘要：Within the neurosciences it is natural to observe variability across time in the dynamics of an underlying brain process. Wavelets are essential in analysing brain signals because, even within a single trial, brain signals exhibit nonstationary behaviour. However, neurological signals generated within an experiment may also potentially exhibit evolution across trials (replicates), even for identical stimuli. As neurologists consider localised spectra of brain signals to be most informative, we...
