Rachel Guo
Stanford University
Institute for Computational and Mathematical Engineering
Stanford University
Institute for Computational and Mathematical Engineering
Hybrid physiological modeling and evaluation for health monitoring from wearable data
I'm a PhD candidate at the Institute for Computational and Mathematical Engineering (ICME) at Stanford, advised by Barbara Engelhardt and collaborating with Emily Fox. My research focuses on advancing interpretable, hybrid physiological modeling frameworks by integrating causal biological mechanisms with probabilistic machine learning. My goal is to move beyond standard ML benchmarks to build tools that prioritize real-world clinical utility, safety, and usability. Leveraging continuous wearable sensor data, I currently apply these methods to two domains: Type 1 diabetes decision support and women’s health monitoring.
Prior to Stanford, I studied Statistics and Computer Science at Harvard and developed methods for causal inference and AI for conservation. My industry experience includes internships at an Apple research team and Meta AI.
Information Economics and LLMs Workshop at EC 2025
Lyle Goodyear, Rachel Guo, Ramesh Johari
Figure 2 from Roughgarden, Tim. Selfish routing and the price of anarchy. MIT press, 2005. [Link to image source]
We empirically study the effect of game state representation on the behavior of LLM agents in repeated, multi-agent selfish routing games, which have known theoretical equilibria.
ICME Research Symposium (2025)
Rachel Guo, Matthew Levine, Dana Lewis, Dessi Zaharieva, Rayhan Lal, Emily Fox, Ramesh Johari
[Poster]
International Conference on Advanced Technologies & Treatments for Diabetes (ATTD 2025)
Jamie Kurtzig, Anika Agrawal, Mehmet Tascioglu, Lyle Goodyear, Rachel Guo, Ramesh Johari, David Scheinker
[Abstract]
ACM Conference on Equity and Access in Algorithms, Mechanisms, and Optimization (2022)
IJCAI Workshop on Complex Data Challenges in Earth Observation (2022)
Rachel Guo, Lily Xu, Andrew Perrault
NeurIPS Workshop on Machine Learning for Development (2020)
Rachel Guo, Lily Xu, Andrew Plumptre, Drew Cronin, Francis Okeke, Milind Tambe
[Paper]
Best Lightning Paper
In submission
Rachel Guo*, Lily Xu*, Andrew Perrault, Luke W. Miratrix, Andrew J. Plumptre, Joshua Mabonga, Herbert Kitimbo, Fredrick Wanyama, Milind Tambe, Andrew B. Davies
"Snare Mountain" – Photo by Paul Hilton. [Link to image source]
This photo depicts over 12 tons of confiscated snares and traps found and removed by rangers at the Uganda Wildlife Authority. Our paper quantifies the causal impact of ranger patrols on deterring poaching activity to support policy recommendations.
We find that traditional time series models like ARIMA perform reasonably well for predicting glucose under exercise, beating hybrid models that harness neural networks to learn ordinary differential equations guiding mechanistic physiology.
NSF Graduate Research Fellowship
Stanford EDGE Fellowship
Thomas T. Hoopes Prize for Outstanding Senior Thesis
Highest Honors in Statistics and Computer Science at Harvard
CRA Outstanding Undergraduate Researcher Award Honorable Mention
NCWIT National Collegiate Award
Best Lightning Paper at NeurIPS Machine Learning for Development Workshop
AAAI Undergraduate Consortium Scholar
Harvard College Scholar