195 citations · 433 across the 22 of their papers we have counts for
5 papers · 1 filter
Estimating Population Viral Load Contextual Exposure Using GPS-Derived Activity Spaces in Rural South Africa
Zhaoxing Wu, Haoyang Wu, Thulile Mathenjwa +10
This article introduces novel methodologies for estimating contextual exposure to HIV population viral load using GPS data. We propose a comprehensive analytical framework comprisi…
Identifying mediating variables with graphical models: an application to the study of causal pathways in people living with HIV
Adrian Dobra, Katherine Buhikire, Joachim G. Voss
We empirically demonstrate that graphical models can be a valuable tool in the identification of mediating variables in causal pathways. We make use of graphical models to elucidat…
Modeling association in microbial communities with clique loglinear models
Adrian Dobra, Camilo Valdes, Dragana Ajdic +2
There is a growing awareness of the important roles that microbial communities play in complex biological processes. Modern investigation of these often uses next generation sequen…
Measuring Human Activity Spaces from GPS Data with Density Ranking and Summary Curves
Yen-Chi Chen, Adrian Dobra
Activity spaces are fundamental to the assessment of individuals' dynamic exposure to social and environmental risk factors associated with multiple spatial contexts that are visit…
Copula Gaussian graphical models and their application to modeling functional disability data
Adrian Dobra, Alex Lenkoski
We propose a comprehensive Bayesian approach for graphical model determination in observational studies that can accommodate binary, ordinal or continuous variables simultaneously.…