I am a statistician whose research involves methodological development, and is based largely on motivation from questions in the social sciences, social epidemiology and environmetrics.

My recent work is on statistical models for social networks, network inference, the development of statistical methodology for the collection and analysis of social network data, surveying of hard-to-reach populations, spatial processes and demography.

- Statistics
- Demography
- Social Sciences
- Social Epidemiology
- Social Networks
- Environmetrics

PhD in Statistics, 1989

University of Chicago

BSc in Mathematics (First Class Honors), 1983

University of Western Australia

- Estimating Asymptomatic and Symptomatic Transmission of the COVID-19 First Few Cases in Selenge Province, Mongolia
- Modeling the Visibility Distribution for Respondent-Driven Sampling with Application to Population Size Estimation
- Causal Inference over Stochastic Networks
- Some New Models for Social Networks
- Exposure Notification System activity as a leading indicator for SARS-COV-2 caseload forecasting
- Understanding Networks with Exponential-family Random Network Models
- Modeling of Networked Populations with Exponential-Family Random Network Models when data is Sampled or Missing
- Comparative assessment of alternative methods for evaluating the optimality of ground motion intensity measures using woodframe buildings
- Modeling of networked populations when data is sampled or missing
- A Practical Revealed Preference Model for Separating Preferences and Availability Effects in Marriage Formation
- Practical Network Modeling via Tapered Exponential-family Random Graph Models
- Tool for tracking all-cause mortality and estimating excess mortality to support the COVID-19 pandemic response
- A New Record Minimum for Antarctic Sea Ice
- Comparing the real-world performance of exponential-family random graph models and latent order logistic models for social network analysis
- A Regime Shift in Seasonal Total Antarctic Sea Ice Extent in the Twentieth Century
- Eighteen-year record of circum-Antarctic landfast-sea-ice distribution allows detailed baseline characterisation and reveals trends and variability
- A Note on 'Sequential Neighborhood Effects' by Hicks et al. (2018)
- An Assessment of the Temporal Variability in the Annual Cycle of Daily Antarctic Sea Ice in the NCAR Community Earth System Model, Version 2: A Comparison of the Historical Runs with Observations
- Modeling the annual cycle of daily Antarctic sea ice extent
- Estimating asymptomatic and presymptomatic transmission of 2019 novel coronavirus (COVID-19) infection: a cohort study in Ho Chi Minh City, Vietnam
- Modeling wildfire ignition origins in southern California using linear network point processes
- Population Size Estimation Using Multiple Respondent-Driven Sampling Surveys
- Bayesian inference for finite populations under spatial process settings
- A Simulation-Based Framework for Assessing the Feasibility of Respondent-Driven Sampling for Estimating Characteristics in Populations of Lesbian, Gay and Bisexual Older Adults
- A Conditional Empirical Likelihood Based Method for Model Parameter Estimation from Complex survey Datasets
- Methods for Inference from Respondent-Driven Sampling Data
- Comment on "On Nonparametric Bayes Modeling of Populations of Networks"
- Sequential Neighborhood Effects: The Effect of Long-Term Exposure to Concentrated Disadvantage on Children's Reading and Mathematical Skills
- Evaluating Variance Estimators for Respondent‐Driven Sampling
- Removing Phase Transitions from Gibbs Measures
- Discussion of "Adaptive and Network Sampling for Inference and Interventions in Changing Populations" by Steven K. Thompson
- Discussion of "Statistical Modelling of Citation Exchange Between Statistics Journals” by Cristiano Varin, Manuela Cattelan and David Firth
- Modeling Concurrency and Selective Mixing in Heterosexual Partnership Networks with Applications to Sexually Transmitted Diseases
- Analysis of Networks with Missing Data with Application to the National Longitudinal Study of Adolescent Health
- If You Are Not Counted, You Don’t Count: Estimating the Number of African-American Men Who Have Sex with Men in San Francisco Using a Novel Bayesian Approach
- Local Dependence in Random Graph Models: Characterisation, Properties, and Statistical Inference
- A Loglinear Modeling Approach to Assessing the Consistency of Ego Reports of Dyadic Outcomes with Applications to Fertility and Sexual Partnerships
- Network Model-Assisted Inference from Respondent-Driven Sampling Data
- Estimating the Size of Populations at High Risk for HIV using Respondent-Driven Sampling Data
- Estimating the size of hidden populations using respondent-driven sampling data: Case examples from Morocco
- Estimating Hidden Population Size using Respondent-Driven Sampling Data
- Identifying Sources of Health Care Underutilization among California's Immigrants
- A Separable Model for Dynamic Networks
- ergm.userterms: A Template Package for Extending statnet
- Exponential-family Random Network Models
- Estimating Within-School Contact Networks To Understand Influenza Transmission
- Improving simulation-based algorithms for fitting ERGMs
- On the Concept of Snowball Sampling
- Estimating Within-Household Contact Networks from Egocentric Data
- Discussion of 'Connections between survey calibration estimators and semi parametric models for incomplete data' by Thomas Lumley, Pamela A. Shaw and James Y. Dai
- Adjusting for network size and composition effects in exponential-family random graph models
- A Description of Within-family Resource Exchange Networks in a Malawian Village
- Respondent-Driven Sampling: An Assessment of Current Methodology
- Modeling Networks from Sampled Data
- Resolving Contested Elections: The Limited Power of Post-Vote Vote Choice Data
- A Framework for the Comparison of Maximum Pseudo Likelihood and Maximum Likelihood Estimation of Exponential Family Random Graph Models
- Bayesian estimation of hispanic fertility hazards from survey and population data
- A curved exponential family model for complex networks
- Population constraints on pooled surveys in demographic hazard modeling
- A statnet Tutorial
- ergm: A Package to Fit, Simulate and Diagnose Exponential-Family Models for Networks
- Fitting Position Latent Cluster Models for Social Networks with latentnet
- networksis: A Package to Simulate Bipartite Graphs with Fixed Marginals through Sequential Importance Sampling
- Specification of Exponential-Family Random Graph Models: Terms and Computational Aspects
- statnet: Software Tools for the Representation, Visualization, Analysis and Simulation of Network Data
- Generalised Linear Models Incorporating Population Level Information: An Empirical Likelihood Based Approach
- Alleviating Linear Ecological Bias and Optimal Design with Subsample Data
- Goodness of Fit of Social Network Models
- Model-Based Combination of Spatial Information for Stream Networks
- Recent developments in Exponential Random Graph (p*) Models for Social Networks
- Model-Based Clustering for Social Networks
- A Simple Model for Complex Networks with Arbitrary Degree Distribution and Clustering
- Heider vs Simmel: Emergent Features in Dynamic Structures
- Statistical Network Analysis: Models, Issues and New Directions: Panel Discussion
- Degree distributions in sexual networks: A framework for evaluating evidence
- Model-based Assessment of the Impact of Missing Data on Inference for Networks
- Inference in curved exponential family models for networks
- Interval Estimates for Epidemic Thresholds in Two-Sex Network Models
- Positional Estimation Within a Latent Space Model for Networks
- New specifications for exponential random graph models
- The Prevalence of Trichomoniasis in Young Adults in the United States
- Alleviating Linear Ecological Bias and Optimal Design with Subsample Data
- Improved Regression Estimation of a Multivariate Relationship with Population Data on the Bivariate Relationship
- Persistent Inequality? Answers from Hybrid Models for Longitudinal Data
- Generalised Linear Models Incorporating Population Level Information: An Empirical Likelihood Based Approach
- Model-Based Clustering for Social Networks
- Comparative Geographic Concentrations of Four Sexually Transmitted Infections
- Prevalence of Chlamydial and Gonococcal Infections Among Young Adults—Reply
- Inference in curved exponential family models for networks
- Incorporating Utilization Distributions into the Study of Resource Selection: Dealing With Spatial Autocorrelation
- Likelihood-Based Inference for Stochastic Models of Sexual Network Formation
- Prevalence of Chlamydial and Gonococcal Infections Among Young Adults in the United States
- Prevalence of HIV Infection Among Young Adults In The U.S.: Results From The Add Health Study
- Relating Resources to a Probabilistic Measure of Space Use: Forest Fragments and Steller’s Jays
- Goodness of Fit of Social Network Models
- New specifications for exponential random graph models
- Positional Estimation Within a Latent Space Model for Networks
- Statistical Correction for Non‐parallelism in a Urinary Enzyme Immunoassay
- Relative Distribution Method
- Assessing Degeneracy in Statistical Models of Social Networks
- Generalised Linear Models Incorporating Population Level Information: An Empirical Likelihood Based Approach
- Sexual contacts and epidemic thresholds
- On 'Sexual contacts and epidemic thresholds,' models and inference for Sexual partnership distributions
- An Assessment of Preferential Attachment as a Mechanism for Human Sexual Network Formation
- Interval Estimates for Epidemic Thresholds in Two-Sex Network Models
- Likelihood-Based Inference for Stochastic Models of Sexual Network Formation
- Statistical Models for Social Networks: Inference and Degeneracy
- Applying Relative Distribution Methods in R
- Latent Space Approaches to Social Network Analysis
- An Assessment of Preferential Attachment as a Mechanism for Human Sexual Network Formation
- Statistical Methods for Ecological Assessment Of Riverine Systems By Combining Information From Multiple Sources
- Degeneracy and Inference for Social Network Models
- Statistical Evidence Tells Tails of Human Sexual Contacts
- Statistical Inference for the Relative Distribution
- Covariance Models for Latent Structure in Longitudinal Data
- Divergent Paths: Economic Mobility in the New American Labor Market
- Trends in Job Instability and Wages for Young Adult Men
- Combining Registration-System and Survey Data to Estimate Birth Probabilities
- Comparing earnings inequality using two major surveys
- Relative Distribution Methods in the Social Sciences
- Trends in Job Instability and Wages for Young Adult Men
- The Declining Middle: Is Pennsylvania Losing its Middle Class?
- Spatial Distribution of Green Mold Foci in Thirty Commercial Mushroom Crops
- Relative Distribution Methods
- Spatial–Temporal Modeling of Meteorological Fields with application to Climate Change
- Bridge Populations in the Spread of HIV/AIDS in Thailand
- Women’s Gains or Men’s Losses? A closer look at the Shrinking Gender Gap in Earnings
- A Casebook for a First Course in Statistics and Data Analysis
- An Approach to Statistical Spatial-Temporal Modeling of Meteorological Fields” (with discussion)
- An Approach to Statistical Spatial-Temporal Modeling of Meteorological Fields” (rejoinder)
- Economic Inequality: New Methods for New Trends
- Comment on "Estimating or Choosing a Geostatistical Model" by Oliver Dubrule
- Measuring the Uncertainty in Kriging
- A Bayesian Analysis of Kriging
- Statistical Review of the Henhouse experiments: The Effects of a Pulsed Magnetic Field on Chick Embryos
- Quantification of Variation in Reading Immunohistochemical Assays
- Determination of Anaerobic Threshold: What Anaerobic Threshold?
- On Cascading Latin Hypercube Designs and Additive Models for Experiments
- Comment on "Prediction of Spatial Cumulative Distribution Functions Using Subsampling"
- Ras Oncogene Protein Product in Ulcerative Colitis
- Relationship between Ras Oncogene Expression and Clinical and Pathological Features of Colonic Carcinoma
- Experience with 647 consecutive tumors of the duodenum, ampulla, head of the pancreas and distal common bile duct
- Inference for spatial Gaussian random fields when the objective is prediction
- Some Asymptotic Properties of Kriging When the Covariance Function is Misspecified
- Ras oncogene protein p21 levels parallel malignant potential of different human colonic benign conditions