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Several mixed-effects models for longitudinal data have been proposed to accommodate the non-linearity of late-life cognitive trajectories and assess the putative influence of covariates on it. No prior research provides a side-by-side…

Longitudinal voice biomarkers provide a non-invasive source of information for monitoring Parkinson's disease progression, but their statistical analysis is difficult because repeated measurements from the same subject are correlated,…

机器学习 · 统计学 2026-04-28 Ran Tong , Lanruo Wang , Tong Wang , Wei Yan

Change-point models are frequently considered when modeling phenomena where a regime shift occurs at an unknown time. In ageing research, these models are commonly adopted to estimate of the onset of cognitive decline. Yet commonly used…

统计方法学 · 统计学 2025-02-13 Fernando Massa , Marco Scavino , Graciela Muniz-Terrera

While it is well known that high levels of prenatal alcohol exposure (PAE) result in significant cognitive deficits in children, the exact nature of the dose response is less well understood. In particular, there is a pressing need to…

Estimating heterogeneous treatment effects with machine learning has attracted substantial attention in both academic research and industrial practice. However, the two communities often evaluate models under markedly different conditions.…

机器学习 · 计算机科学 2026-05-26 George Panagopoulos

Evaluating the effects of time-varying exposures is essential for longitudinal studies. The effect estimation becomes increasingly challenging when dealing with hundreds of time-dependent confounders. We propose a Marginal Structure…

统计方法学 · 统计学 2025-10-21 Zhiwei Zhao , Chixiang Chen , Shuo Chen

Recently, there has been great interest in estimating the conditional average treatment effect using flexible machine learning methods. However, in practice, investigators often have working hypotheses about effect heterogeneity across…

统计方法学 · 统计学 2023-09-13 Chan Park , Hyunseung Kang

Mixed Models for Repeated Measures (MMRMs) are ubiquitous when analyzing outcomes of clinical trials. However, the linearity of the fixed-effect structure in these models largely restrict their use to estimating treatment effects that are…

统计方法学 · 统计学 2023-01-23 Lars Lau Raket

We address the problem of estimating how different parts of the brain develop and change throughout the lifespan, and how these trajectories are affected by genetic and environmental factors. Estimation of these lifespan trajectories is…

应用统计 · 统计学 2020-11-30 Øystein Sørensen , Kristine B Walhovd , Anders M Fjell

Longitudinal MRIs are often used to capture the gradual deterioration of brain structure and function caused by aging or neurological diseases. Analyzing this data via machine learning generally requires a large number of ground-truth…

计算机视觉与模式识别 · 计算机科学 2021-06-21 Jiahong Ouyang , Qingyu Zhao , Ehsan Adeli , Edith V Sullivan , Adolf Pfefferbaum , Greg Zaharchuk , Kilian M Pohl

Long-term outcomes of experimental evaluations are necessarily observed after long delays. We develop semiparametric methods for combining the short-term outcomes of experiments with observational measurements of short-term and long-term…

计量经济学 · 经济学 2023-08-21 Jiafeng Chen , David M. Ritzwoller

It has been argued for many years that models used to analyze data from crossover designs are not appropriate when simple carryover effects are assumed. Furthermore, a statistical model that could estimate complex carry-over effects in…

统计方法学 · 统计学 2025-08-22 N. A. Cruz , K. Mylona , O. O. Melo

One fundamental statistical question for research areas such as precision medicine and health disparity is about discovering effect modification of treatment or exposure by observed covariates. We propose a semiparametric framework for…

统计方法学 · 统计学 2020-08-04 Muxuan Liang , Menggang Yu

Longitudinal data tracking repeated measurements on individuals are highly valued for research because they offer controls for unmeasured individual heterogeneity that might otherwise bias results. Random effects or mixed models approaches,…

应用统计 · 统计学 2009-09-29 J. R. Lockwood , Daniel F. McCaffrey

Joint models for a wide class of response variables and longitudinal measurements consist on a mixed-effects model to fit longitudinal trajectories whose random effects enter as covariates in a generalized linear model for the primary…

统计方法学 · 统计学 2014-07-03 Rolando De la Cruz , Cristian Meza , Ana Arribas-Gil , Raymond J. Carroll

In clinical practice and biomedical research, measurements are often collected sparsely and irregularly in time while the data acquisition is expensive and inconvenient. Examples include measurements of spine bone mineral density, cancer…

机器学习 · 统计学 2021-08-05 Łukasz Kidziński , Trevor Hastie

Longitudinal imaging studies are essential to understanding the neural development of neuropsychiatric disorders, substance use disorders, and the normal brain. The main objective of this paper is to develop a two-stage adjusted…

应用统计 · 统计学 2011-08-12 Xiaoyan Shi , Joseph G. Ibrahim , Jeffrey Lieberman , Martin Styner , Yimei Li , Hongtu Zhu

Learning heterogeneous treatment effects (HTEs) is an important problem across many fields. Most existing methods consider the setting with a single treatment arm and a single outcome metric. However, in many real world domains, experiments…

机器学习 · 计算机科学 2022-06-13 Leon Yao , Caroline Lo , Israel Nir , Sarah Tan , Ariel Evnine , Adam Lerer , Alex Peysakhovich

We propose a novel approach for modeling multivariate longitudinal data in the presence of unobserved heterogeneity for the analysis of the Health and Retirement Study (HRS) data. Our proposal can be cast within the framework of linear…

统计方法学 · 统计学 2015-09-17 Laura Anderlucci , Cinzia Viroli

In this review paper, some applications of the mixed effect modeling in medial image processing and longitudinal analysis is studied. For this purpose, a general structure is extracted from some of the researches in the literature. This…

医学物理 · 物理学 2018-03-13 Fatemeh Nasiri , Oscar Acosta-Tamayo
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