Yuki Ohnishi

Yuki Ohnishi

Postdoc Associate

Research/Awards

Preprints

  1. Y. Ohnishi, M. O. Harhay and F. Li, “Principal stratification with recurrent events truncated by a terminal event: A nested Bayesian nonparametric approach,” arXiv:2506.19015, submitted.

  2. Y. Ohnishi and J. Awan, “Differentially Private Covariate Balancing Causal Inference,” arXiv:2410.14789, submitted.

Journal/Proceedings

  1. Y. Ohnishi and F. Li, “A Bayesian nonparametric approach to mediation and spillover effects with multiple mediators in cluster-randomized trials,” Journal of the American Statistical Association, accepted.

  2. Y. Ohnishi, B. Karmakar and A. Sabbaghi, “Degree of Interference: A General Framework for Causal Inference under Interference,” Journal of Machine Learning Research, accepted.

  3. Y. Ohnishi, B. Karmakar and W. Kar, “Inferring Causal Effect of a Digital Communication Strategy under a Latent Sequential Ignorability Assumption and Treatment Noncompliance,” Journal of the American Statistical Association, 2025.

  4. Y. Ohnishi and J. Awan, “Locally Private Causal Inference for Randomized Experiments,” Journal of Machine Learning Research, 2025.

  5. Y. Ohnishi and A. Sabbaghi, “A Bayesian Analysis of Two-Stage Randomized Experiments in the Presence of Interference, Treatment Nonadherence, and Missing Outcomes,” Bayesian Analysis, 2024.

  6. Y. Ohnishi and J. Honorio, “Novel change of measure inequalities with applications to PAC-Bayesian bounds and Monte Carlo estimation,” The 24th International Conference on Artificial Intelligence and Statistics, 2021.

Workshops

  1. Y. Ohnishi and S. Sugaya, “Applying Bayesian Hierarchical Probit Model to Interview Grade Evaluation,” KDD’19 International Workshop on Talent and Management Computing Workshop. 2019. [TMC@KDD’19]

  2. Y. Ohnishi and S. Sugaya, “Bayesian Hierarchical Bernoulli-Weibull Mixture Model for Extremely Rare Events,” INFORMS Business Analytics Conference. 2018.

Awards

  1. JSM Early Career Award, Statistics in Epidemiology Section, American Statistical Association, 2025.

  2. Graduate Student Recognition GRAD Award, Department of Statistics, Purdue University, 2024.

  3. College of Science Graduate Student Travel Award, Purdue University, 2023.

  4. Research and teaching fellowship, Purdue University, 2018-2024