Walter Dempsey Statistican / Data Scientist

My name is Walter Dempsey; I work in the areas of applied and theoretical statistics, and more recently on various machine learning and data science problems.



  • Mailing address:
  • Harvard University
  • Department of Statistics
  • Science Center 400 Suite
  • One Oxford Street
  • Cambridge, MA 02138-2901

Research Interests

My research interests are in developing and analysing methods for joint modeling of longitudinal and time-to-event data. I have also worked on mathematical statistics problems related to notions of exchangeability for survival processes as well as network modeling. More recently, I have begun work on just-in-time adaptive interventions with applications in mHealth.


I am a postdoctoral researcher in the Department of Statistics at Harvard University , starting August 2017. Before that, I was a postdoc at University of Michigan. I received my PhD in Statistics at the University of Chicago in 2015, advised by Peter McCullagh . Prior to graduate school, I worked in the Financial Strategy Group in the Investment Banking Division at Citi.