Yi Liu
Portrait of Yi Liu

Yi Liu (刘祎)

Ph.D. Candidate in Biostatistics, Emory University

I am currently a Ph.D. candidate in Biostatistics at Emory University, advised by Dr. Limin Peng. My current research focuses on survival and longitudinal data analysis, with active work in quantile regression, frailty modeling, and clinical trial methodology.

I am also an incoming postdoctoral researcher (Fall 2026) in University of Michigan, coadvised by Dr. Dongling Zeng and Dr. Yuanjia Wang. I am interested in exploring reinforcement learning for dynamic treatment regimes and AI-driven methods in Biomedical research.

Feel free to email me if any collaboration opportunities!

Contact Google Scholar

Education

  • Ph.D. in Biostatistics, Emory University (anticipated 2026). Advisor: Dr. Limin Peng.
  • M.S. in Biostatistics, University of Pennsylvania (2021). Advisor: Dr. Jinbo Chen.
  • B.S. in Statistics, Nankai University (2019).

Experience

  • Statistics Summer Intern, Pfizer (Jun 2025 – Aug 2025)
    • Developed a causal machine learning framework for treatment-switching adjustment in clinical trials.

Selected Publications

  1. Liu, Y., Umpierrez, G. E., & Peng, L. (2025). Exploring the heterogeneity in recurrent episode lengths based on quantile regression. Biometrics, 81(3), ujaf122.
    • International Biometric Society ENAR Distinguished Student Paper Award.
    • Joint Statistical Meetings (JSM) Student Paper Award, Life Data Science Section.
  2. Liu, Y., Hanfelt, J., & Peng, L. (2025+). Hierarchical latent-variable modeling of multivariate clinical outcomes. In preparation.
  3. Liu, Y., Lee, J., & Chen, J. (2025+). Evaluation of active learning in electronic health records phenotyping. Submitted.
  4. Nguyen, T. T. A., Zhang, J., Iqbal, J., Ahmed, S. S., Liu, Y., Yang, L., et al. (2025). Proposing New Criteria for Classification of Benign Fibroepithelial Lesions Based on Clinicopathologic Evaluations of 507 Cases with Clinical Outcome. Modern Pathology, 38(10), 100812.
  5. Li, X., Nguyen, T. T. A., Zhang, J., Nayak, A., Liu, Y., et al. (2024). Validation study of the newly proposed refined diagnostic criteria for malignant phyllodes tumor with 136 borderline and malignant phyllodes tumor cases. The American Journal of Surgical Pathology, 48(9), 1146–1153.
  6. Schwieger, L., Postlewait, L. M., Liu, Y., Jou, S., Yi, S., Peng, L., & Li, X. (2024). Changes in expression of breast cancer tumor biomarkers between primary tumors and corresponding metastatic sites: common patterns and relationships with survival. Breast Cancer Research and Treatment, 207(2), 373–382.
  7. Turashvili, G., Ding, Q., Liu, Y., Peng, L., et al. (2023). Comprehensive clinical-pathologic assessment of malignant phyllodes tumors: proposing refined diagnostic criteria. The American Journal of Surgical Pathology, 47(11), 1195–1206.
  8. Postlewait, L., Liu, Y., Jou, S., Yi, S., Peng, L., & Li, X. (2023). Changes in Expression of Breast Cancer Tumor Markers Between Primary Tumors and Corresponding Metastatic Sites: Common Patterns and Relationships with Survival. Laboratory Investigation, 103(3), S199–S200.
  9. Haw, Y., Krings, G., Hsiao, W. Y., Zhan, H., Hou, Y., Zhang, G., Zhang, H., Wei, S., Liu, Y., et al. (in press). Clinicopathologic Analyses of 34 Cases of High-Grade Serous-Like Carcinoma of the Breast. The American Journal of Surgical Pathology.
  10. McCarthy, A. M., Liu, Y., Ehsan, S., et al. (2021). Validation of breast cancer risk models by race/ethnicity, family history and molecular subtypes. Cancers, 14(1), 45.

Talks & Abstracts

  1. Exploring the Heterogeneity in Recurrent Episode Lengths Based on Quantile Regression, Joint Statistical Meetings, Nashville, TN (08/2025).
  2. Exploring the Heterogeneity in Recurrent Episode Lengths Based on Quantile Regression, ENAR Spring Meeting, New Orleans, LA (03/2025).
  3. High Tumor Infiltrating Lymphocytes Are Significantly Associated with Increased Pathological Complete Response Rate, USCAP 114th Annual Meeting, Boston, MA (03/2025).
  4. Clinicopathologic Evaluations of Cellular Fibroadenoma, Benign and Borderline Phyllodes Tumors, USCAP 114th Annual Meeting, Boston, MA (03/2025).
  5. Flexible Regression Analysis of Recurrent Episode Length Data, Joint Statistical Meetings, Portland, OR (08/2024).
  6. Serous Carcinoma-Like Carcinoma of the Breast, a Possible Underrecognized New Entity?, USCAP 113th Annual Meeting, Baltimore, MD (03/2024).