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Curriculum Vitae

Updated October 2026

Background

  • Associate Professor, Department of Mathematics, Bowdoin College (2018 to present)
  • Assistant Professor, Department of Mathematics, Bowdoin College (2012 to 2018)
  • Senior Statistician, Wellcome Trust Centre for Human Genetics, University of Oxford (2010 to 2012)
  • Research Associate in Statistical Genetics, University of Bristol (2008 to 2010)
  • Ph.D., Biomathematics, University of California, Los Angeles
  • B.A., Mathematics, Pomona College

Full CV

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Representative papers

  • John D. O’Brien. 2026. “A Bayesian mixture model captures temporal and spatial structure of voting blocs within longitudinal referendum data.” Political Science Research and Methods, 1–22. [doi] [arXiv]
  • John D. O’Brien, Kathryn Lin, Scott MacEachern. 2016. “Mixture model of pottery decorations from Lake Chad Basin archaeological sites reveals ancient segregation patterns.” Proceedings of the Royal Society B 283(1827): 20152824. [doi] [arXiv]
  • John D. O’Brien, Xavier Didelot, Zamin Iqbal, Lucas Amenga-Etego, Bartu Ahiska, Daniel Falush. 2014. “A Bayesian approach to inferring the phylogenetic structure of communities from metagenomic data.” Genetics 197(3): 925–937. [doi] [arXiv]
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