4 papers
Sensitivity analysis for causal mediation: bridge score, sharp sensitivity bounds, and calibration
Yuki Ohnishi, Fan Li
Causal mediation analysis decomposes the total treatment effect into a portion operating through a hypothesized mediator and a residual direct portion. Identification of natural di…
Bayesian change-plane regression
Yuki Ohnishi, Fan Li
Change-plane regression represents treatment effect heterogeneity through an interpretable rule that assigns patients to two groups according to whether a linear score of baseline…
Bayesian Hierarchical Bernoulli-Weibull Mixture Model for Extremely Rare Events
Yuki Ohnishi, Shinsuke Sugaya
Estimating the duration of user behavior is a central concern for most internet companies. Survival analysis is a promising method for analyzing the expected duration of events and…
Novel Change of Measure Inequalities with Applications to PAC-Bayesian Bounds and Monte Carlo Estimation
Yuki Ohnishi, Jean Honorio
We introduce several novel change of measure inequalities for two families of divergences: -divergences and -divergences. We show how the variational representation for -d…