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It is highly desirable to borrow information from external data to augment a control arm in a randomized clinical trial, especially in settings where the sample size for the control arm is limited. However, a main challenge in borrowing…

统计方法学 · 统计学 2023-11-01 Dehua Bi , Tianjian Zhou , Wei Zhong , Yuan Ji

Epidemic processes are common out-of-equilibrium phenomena of broad interdisciplinary interest. Recently, dynamic message-passing (DMP) has been proposed as an efficient algorithm for simulating epidemic models on networks, and in…

物理与社会 · 物理学 2015-09-30 Munik Shrestha , Samuel V. Scarpino , Cristopher Moore

In this work, we develop a novel Bayesian estimation method for the Dirichlet process (DP) mixture of the inverted Dirichlet distributions, which has been shown to be very flexible for modeling vectors with positive elements. The recently…

机器学习 · 计算机科学 2020-02-04 Zhanyu Ma , Yuping Lai

We describe nonparametric deconvolution models (NDMs), a family of Bayesian nonparametric models for collections of data in which each observation is the average over the features from heterogeneous particles. For example, these types of…

机器学习 · 计算机科学 2020-03-18 Allison J. B. Chaney , Archit Verma , Young-suk Lee , Barbara E. Engelhardt

Analyzing multilayer networks is central to understanding complex relational measurements collected across multiple conditions or over time. A pivotal task in this setting is to quantify uncertainty in community structure while…

统计方法学 · 统计学 2025-12-10 Fangzheng Xie , Hsin-Hsiung Huang

This note is concerned with an accurate and computationally efficient variational bayesian treatment of mixed-effects modelling. We focus on group studies, i.e. empirical studies that report multiple measurements acquired in multiple…

机器学习 · 统计学 2019-03-22 Jean Daunizeau

We propose a sequential Monte Carlo algorithm for parameter learning when the studied model exhibits random discontinuous jumps in behaviour. To facilitate the learning of high dimensional parameter sets, such as those associated to neural…

机器学习 · 统计学 2024-12-19 John-Joseph Brady , Yuhui Luo , Wenwu Wang , Víctor Elvira , Yunpeng Li

A popular method for estimating a causal treatment effect with observational data is the difference-in-differences (DiD) model. In this work, we consider an extension of the classical DiD setting to the hierarchical context in which data…

统计方法学 · 统计学 2019-10-17 James Normington , Eric F. Lock , Thomas A. Murray , Caroline S. Carlin

Nonmonotone missing data arise routinely in empirical studies of social and health sciences, and when ignored, can induce selection bias and loss of efficiency. In practice, it is common to account for nonresponse under a missing-at-random…

统计方法学 · 统计学 2017-07-20 Eric J. Tchetgen Tchetgen , Linbo Wang , BaoLuo Sun

The modelling of action potentials from extracellular recordings, or spike sorting, is a rich area of neuroscience research in which latent variable models are often used. Two such models, Overfitted Finite Mixture models (OFMs) and…

应用统计 · 统计学 2016-02-08 Zoé van Havre , Nicole White , Judith Rousseau , Kerrie Mengersen

Learning latent structure in complex networks has become an important problem fueled by many types of networked data originating from practically all fields of science. In this paper, we propose a new non-parametric Bayesian…

社会与信息网络 · 计算机科学 2015-03-18 Morten Mørup , Mikkel N. Schmidt , Lars Kai Hansen

Given a trained model and a data sample, membership-inference (MI) attacks predict whether the sample was in the model's training set. A common countermeasure against MI attacks is to utilize differential privacy (DP) during model training…

密码学与安全 · 计算机科学 2022-04-14 Saeed Mahloujifar , Alexandre Sablayrolles , Graham Cormode , Somesh Jha

Randomized clinical trials are considered the gold standard for estimating causal effects. Nevertheless, in studies that are aimed at examining adverse effects of interventions, such trials are often impractical because of ethical and…

统计方法学 · 统计学 2020-01-20 Anthony D. Scotina , Andrew R. Zullo , Robert J. Smith , Roee Gutman

Dirichlet process mixture model (DPMM) is a popular Bayesian nonparametric model. In this paper, we apply this model to weighted data and then estimate the un-weighted distribution from the corresponding weighted distribution using the…

统计计算 · 统计学 2018-12-12 Soghra Bohlourihajjar , Soleiman Khazaei

This paper studies the identification of causal effects of a continuous treatment using a new difference-in-difference strategy. Our approach allows for endogeneity of the treatment, and employs repeated cross-sections. It requires an…

计量经济学 · 经济学 2023-04-18 Xavier D'Haultfoeuille , Stefan Hoderlein , Yuya Sasaki

This paper introduces Bayesian frameworks for tackling various aspects of multi-criteria decision-making (MCDM) problems, leveraging a probabilistic interpretation of MCDM methods and challenges. By harnessing the flexibility of Bayesian…

人工智能 · 计算机科学 2025-08-08 Majid Mohammadi

Many programs evaluated in observational studies incorporate a sequential structure, where individuals may be assigned to various programs over time. While this complexity is often simplified by analyzing programs at single points in time,…

计量经济学 · 经济学 2025-06-16 Fabian Muny

The rise of "big data" has led to the frequent need to process and store datasets containing large numbers of high dimensional observations. Due to storage restrictions, these observations might be recorded in a lossy-but-sparse manner,…

应用统计 · 统计学 2018-09-12 James Pitkin , Gordon Ross , Ioanna Manolopoulou

The initial outpatient consultation is critical for clinical decision-making, yet it is often conducted by a single physician under time pressure, making it prone to cognitive biases and incomplete evidence capture. Although the…

多智能体系统 · 计算机科学 2026-04-24 Huangwei Chen , Wu Li , Junhao Jia , Yining Chen , Xiaotao Pang , YaLong Chen , Gonghui Li , Haishuai Wang , Jiajun Bu , Lei Wu

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