Ashley Petersen, PhD

Assistant Professor, Division of Biostatistics

Ashley Petersen

Contact Info

Office Phone 612-626-8156

Office Address:
A440 Mayo

Mailing Address:
MMC 303 Mayo Building
420 Delaware St. SE
Minneapolis, MN 55455

PhD, Biostatistics, University of Washington, 2016

BA, Mathematics, St. Olaf College


My research focuses on developing methods in the area of statistical learning. In particular, my interest is in building flexible and interpretable data-adaptive models that are useful in modern settings with large numbers of covariates. Additionally, I develop methods for the analysis of calcium imaging data. As a member of the Biostatistics and Bioinformatics Core of the Masonic Cancer Center, I collaborate with investigators on a range of applications, including research on tobacco use and health disparities.



Selected Recent Publications

  • Petersen A, Witten D, and N Simon (2016). “Fused Lasso Additive Model.” Journal of Computational and Graphical Statistics, 25(4): 1005-1025.
  • Rizoli S, Petersen A, Bulger E, Coimbra R, Kerby JD, Minei J, Morrison L, Nathens A, Schreiber M, and AL de Oliveira Manoel (2016). “Early Prediction of Outcome after Severe Traumatic Brain Injury: A Simple and Practical Model.” BMC Emergency Medicine, 16(1): 32.
  • Petersen A, Simon N, and D Witten (2016). “Convex Regression with Interpretable Sharp Partitions.” Journal of Machine Learning Research, 17(94): 1-31.