Duke University

Ph.D. Candidate, Durham, NC, Aug 2021 - Current

  • Developed an interpretable method for estimating dynamic treatment regimes that reduced the probability of an adverse medical event by over 20 percentage points when operationalized on a real-world ICU dataset. Work published at AISTATS.
  • Created a variant of multi-label learning optimized for rare event settings that improved prediction of cardiovascular adverse events in pregnancy by up to 10\%. Work published as a spotlight paper at UAI.
  • Engineered a new method for large scale, computationally inexpensive, and interpretable causal inference that is over 100 times faster than existing benchmarks. Work published at UAI.

Meta

Research Scientist Intern, Seattle, WA, May 2024 - Aug 2024

  • Developed a domain-adapted, model-based approach for offline counterfactual evaluation of large-scale ad-ranking models, improving pre-deployment testing of ML systems. Work accepted at the 2024 Causality, Counterfactuals \& Sequential Decision-Making Workshop at RecSys and the 2024 Conference on Digital Experimentation @ MIT.
  • Designed and ran empirical analyses comparing multiple evaluation methods, identifying conditions where the proposed approach outperforms existing benchmarks.
  • Bridged observational causal inference and experimentation by enhancing offline evaluation techniques for models later tested via A/B experiments.

Optum

Data Scientist, Eden Prairie, MN, Jun 2019 - Jul 2021

  • Built and deployed a multimodal time-series model assessing the risk of every development team’s proposed application update that remains used at the company to present day.
  • Detected suspicious activity as lead python programmer for fraud investigation in the payout of the U.S. Government’s COVID-19 HHS CARES Act Provider Relief Fund facilitated by Optum.
  • Automated development team’s Jenkins environment by creating customizable Jenkinsfiles to deploy machine learning models to Kubernetes.
  • Summarized bank transaction and account activity logs into feature vectors using PySpark, and used Spark’s MLlib library to detect irregular account activity.

Data Scientist Intern, Eden Prairie, MN, Jun 2018 - Aug 2018

Big Data Intern, Eden Prairie, MN, Jun 2017 - Aug 2017