Kristian Lum, PhD, MSc studies and develops statistical and machine learning models to tackle problems with social impact. This includes statistical population estimation models to estimate the number of undocumented victims of human rights violations, “fair” algorithms for use in high-stakes decision making, and epidemiological models to study disease spread among and between marginalized populations and the broader community. Dr. Lum is particularly interested in applications to criminal justice. Her research, as it specifically relates to health care, has recently turned to developing a tool for predicting personal protective equipment (PPE) consumption by hospitals as a function of projections of the number of COVID-19 patients in the future. She enjoys using the tools of statistics and machine learning to shine a light on alternative interpretations of data. She is often just as (if not more) interested in what is missing from a dataset than what is in it.