activity
20172021
most citedAdjustment for Biased Sampling Using NHANES Derived Propensity Weights

4 citations · 10 across the 8 of their papers we have counts for

collaborators

9 papers

stat.ME2021★ 4 cited

Adjustment for Biased Sampling Using NHANES Derived Propensity Weights

Olivia M. Bernstein, Brian G. Vegetabile, Christian R. Salazar +2

The Consent-to-Contact (C2C) registry at the University of California, Irvine collects data from community participants to aid in the recruitment to clinical research studies. Self…

stat.ME2021

A Measurement of In-Betweenness and Inference Based on Shape Theories

Dustin Pluta, Xiangmin Xu, Daniel L. Gillen +1

We propose a statistical framework to investigate whether a given subpopulation lies between two other subpopulations in a multivariate feature space. This methodology is motivated…

cs.LG2020★ 4 cited

Quantity vs. Quality: On Hyperparameter Optimization for Deep Reinforcement Learning

Lars Hertel, Pierre Baldi, Daniel L. Gillen

Reinforcement learning algorithms can show strong variation in performance between training runs with different random seeds. In this paper we explore how this affects hyperparamet…

stat.ME2018

A Flexible Joint Longitudinal-Survival Modeling Framework for Incorporating Multiple Longitudinal Biomarkers

Sepehr Akhavan-Masouleh, Alexander Vandenberg-Rodes, Babak Shahbaba +1

We are interested in survival analysis of hemodialysis patients for whom several biomarkers are recorded over time. Motivated by this challenging problem, we propose a general fram…

stat.ME2018

A Bayesian Framework for Non-Collapsible Models

Sepehr Akhavan Masouleh, Babak Shahbaba, Daniel L. Gillen

In this paper, we discuss the non-collapsibility concept and propose a new approach based on Dirichlet process mixtures to estimate the conditional effect of covariates in non-coll…

stat.AP2018

A Flexible Joint Longitudinal-Survival Model for Analysis of End-Stage Renal Disease Data

Sepehr Akhavan Masouleh, Tracy Holsclaw, Babak Shahbaba +1

We propose a flexible joint longitudinal-survival framework to examine the association between longitudinally collected biomarkers and a time-to-event endpoint. More specifically,…

stat.ME2018

Assessing Health Care Interventions via an Interrupted Time Series Model: Study Power and Design Considerations

Maricela Cruz, Daniel L. Gillen, Miriam Bender +1

The delivery and assessment of quality health care is complex with many interacting and interdependent components. In terms of research design and statistical analysis, this comple…

math.ST2017★ 2 cited

Fisher information matrix of binary time series

Xu Gao, Hernando Ombao, Daniel Gillen

A common approach to analyzing categorical correlated time series data is to fit a generalized linear model (GLM) with past data as covariate inputs. There remain challenges to con…

stat.ME2017

Estimating prediction error for complex samples

Andrew Holbrook, Thomas Lumley, Daniel Gillen

With a growing interest in using non-representative samples to train prediction models for numerous outcomes it is necessary to account for the sampling design that gives rise to t…