37 citations · 44 across the 6 of their papers we have counts for
7 papers
Direct Estimation of Parameters in ODE Models Using WENDy: Weak-form Estimation of Nonlinear Dynamics
David M. Bortz, Daniel A. Messenger, Vanja Dukic
We introduce the Weak-form Estimation of Nonlinear Dynamics (WENDy) method for estimating model parameters for non-linear systems of ODEs. Without relying on any numerical differen…
A Point Process Model for Generating Biofilms with Realistic Microstructure and Rheology
Jay A. Stotsky, Vanja Dukic, David M. Bortz
Biofilms are communities of bacteria that exhibit a multitude of multiscale biomechanical behaviors. Recent experimental advances have lead to characterizations of these behaviors…
Analyzing Non-proportional Hazards: Use of the MRH Package
Yolanda Hagar, Vanja Dukic
In this manuscript we demonstrate the analysis of right-censored survival outcomes using the MRH package in R. The MRH package implements the multi-resolution hazard (MRH) model, w…
Models with time-varying predictors for meningitis in Navrongo, Ghana
Yolanda Hagar, Mary Hayden, Abudulai Adams Forgor +4
The "meningitis belt" is a region in sub-Saharan Africa where annual outbreaks of meningitis occur, with large epidemics observed cyclically. While we know that meningitis is heavi…
Comparison of hazard rate estimation in R
Yolanda Hagar, Vanja Dukic
We give an overview of eight different software packages and functions available in R for semi- or non-parametric estimation of the hazard rate for right-censored survival data. Of…
Modeling Long-term Outcomes and Treatment Effects After Androgen Deprivation Therapy for Prostate Cancer
Yolanda Hagar, James J. Dignam, Vanja Dukic
Analyzing outcomes in long-term cancer survivor studies can be complex. The effects of predictors on the failure process may be difficult to assess over longer periods of time, as…
On minimum correlation in construction of multivariate distributions
Vanja Dukic, Nevena Maric
In this paper we present a method for exact generation of multivariate samples with pre-specified marginal distributions and a given correlation matrix, based on a mixture of Fréch…