Search Results - "Models, Statistical"

Voxel-based meta-analysis via permutation of subject images (PSI): Theory and implementation for SDM by Albajes-Eizagirre, Anton, Solanes, Aleix, Vieta, Eduard, Radua, Joaquim

“… power when there are multiple effects. Here we present a new algorithm that can use standard voxelwise tests and, importantly, conducts a standard permutation of subject images (PSI). Its main steps…”
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Short-Term Heart Rate Variability—Influence of Gender and Age in Healthy Subjects by Voss, Andreas, Schroeder, Rico, Heitmann, Andreas, Peters, Annette, Perz, Siegfried

“… (linear and nonlinear) in 1906 healthy subjects from the KORA S4 cohort. Based on the same group of subjects…”
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The number of subjects per variable required in linear regression analyses by Austin, Peter C., Steyerberg, Ewout W.

“… We used a series of Monte Carlo simulations to examine the impact of the number of subjects per variable (SPV…”
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Finite element modeling of the human kidney for probabilistic occupant models: Statistical shape analysis and mesh morphing by Yates, Keegan M., Untaroiu, Costin D.

“… Semi-automatic mesh morphing techniques have been developed to efficiently create subject specific meshes from a template mesh with a similar geometry…”
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Entropy optimized MHD nanomaterial flow subject to variable thicked surface by Wang, Jing, Muhammad, Riaz, Khan, M. Ijaz, Khan, W.A., Abbas, S.Z.

“…•Here entropy generation in viscous fluid flow over a variable thicked surface is addressed.•Electrical conducting fluid is considered.•Heat…”
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Modeling between-subject and within-subject variances in ecological momentary assessment data using mixed-effects location scale models by Hedeker, Donald, Mermelstein, Robin J., Demirtas, Hakan

“… In these studies, up to 30 or 40 observations are often obtained for each subject. Because there are so many measurements per subject, one can characterize a subject's mean and variance and can specify models…”
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Hybrid models were found to be very elegant to disentangle longitudinal within- and between-subject relationships by Twisk, Jos W.R., de Vente, Wieke

“…The interpretation of a regression coefficient obtained from a longitudinal data analysis is a combination of a within-subject part and a between-subject part…”
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The class of cub models: statistical foundations, inferential issues and empirical evidence by Piccolo, Domenico, Simone, Rosaria

“… overdispersion, also in relation to subjects’ and objects’ covariates. The article establishes the state of art of the research inherent to this paradigm, in terms…”
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Mediation analysis of time‐to‐event endpoints accounting for repeatedly measured mediators subject to time‐varying confounding by Vansteelandt, Stijn, Linder, Martin, Vandenberghe, Sjouke, Steen, Johan, Madsen, Jesper

“…In this article, we will present statistical methods to assess to what extent the effect of a randomised treatment (versus control) on a time‐to‐event endpoint…”
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Within-subject mediation analysis for experimental data in cognitive psychology and neuroscience by Vuorre, Matti, Bolger, Niall

“… One reason for the scarcity of applications is that these areas of psychology commonly employ within-subjects designs, and mediation models for within-subjects data are considerably more complicated…”
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A deep learning method for image‐based subject‐specific local SAR assessment by Meliadò, E.F., Raaijmakers, A.J.E, Sbrizzi, A., Steensma, B.R., Maspero, M., Savenije, M.H.F., Luijten, P.R., Berg, C.A.T.

“…–based method for image‐based subject‐specific local SAR assessment. We propose to train a convolutional neural network to learn a “surrogate SAR model…”
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Untangling the relatedness among correlations, part I: Nonparametric approaches to inter-subject correlation analysis at the group level by Chen, Gang, Shin, Yong-Wook, Taylor, Paul A., Glen, Daniel R., Reynolds, Richard C., Israel, Robert B., Cox, Robert W.

“… The synchronization or response similarities among subjects are typically measured through inter-subject correlation (ISC…”
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The Gaussian Graphical Model in Cross-Sectional and Time-Series Data by Epskamp, Sacha, Waldorp, Lourens J., Mõttus, René, Borsboom, Denny

“…We discuss the Gaussian graphical model (GGM; an undirected network of partial correlation coefficients) and detail its utility as an exploratory data analysis…”
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A bi-ventricular cardiac atlas built from 1000+ high resolution MR images of healthy subjects and an analysis of shape and motion by Bai, Wenjia, Shi, Wenzhe, de Marvao, Antonio, Dawes, Timothy J.W., O’Regan, Declan P., Cook, Stuart A., Rueckert, Daniel

“… In this work, a bi-ventricular cardiac atlas was built from a unique data set, which consists of high resolution cardiac MR images of 1000+ normal subjects…”
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Untangling the relatedness among correlations, Part II: Inter-subject correlation group analysis through linear mixed-effects modeling by Chen, Gang, Taylor, Paul A., Shin, Yong-Wook, Reynolds, Richard C., Cox, Robert W.

“…It has been argued that naturalistic conditions in FMRI studies provide a useful paradigm for investigating perception and cognition through a synchronization measure, inter-subject correlation (ISC…”
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A Location‐Scale Joint Model for Studying the Link Between the Time‐Dependent Subject‐Specific Variability of Blood Pressure and Competing Events by Courcoul, Léonie, Tzourio, Christophe, Woodward, Mark, Barbieri, Antoine, Jacqmin‐Gadda, Hélène

“…‐scale joint model for the repeated measures of a marker and competing events. This joint model combines a mixed model including a subject‐specific and time…”
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Causal inference with longitudinal data subject to irregular assessment times by Pullenayegum, Eleanor M., Birken, Catherine, Maguire, Jonathon

“…Summary Data collected in the context of usual care present a rich source of longitudinal data for research, but often require analyses that simultaneously…”
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TransUNET-DDPM: A transformer-enhanced diffusion model for subject-specific brain network generation and classification by Ajith, Meenu, Calhoun, Vince D.

“… To produce subject-specific 3D ICNs, an image-conditioned variant of TransUNET-DDPM is employed, utilizing a spatiotemporal encoder to incorporate resting-state…”
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A group distributional ICA method for decomposing multi-subject diffusion tensor imaging by Yang, Guangming, Wu, Ben, Kang, Jian, Guo, Ying

“… However, there has been very limited work for multi-subject DTI data. Due to the special characteristics of the 3D diffusion tensor measured in DTI, existing methods such as standard independent component analysis (ICA…”
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Intercept Estimation of Semi‐Parametric Joint Models in the Context of Longitudinal Data Subject to Irregular Observations by Ledesma, Luis, Pullenayegum, Eleanor

“…Longitudinal data are often subject to irregular visiting times, with outcomes and visit times influenced by a latent variable. Semi…”
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