5 papers
Benefits and Costs of Adaptive Sampling
Yu-Shiou Willy Lin, Dae Woong Ham, Iavor Bojinov
Multi-armed bandits are widely used for sequential experimentation in clinical trials, recommendation systems, and online platforms. While regret minimization and valid inference f…
Design and Analysis of Switchback Experiments
Iavor Bojinov, David Simchi-Levi, Jinglong Zhao
Switchback experiments, where a firm sequentially exposes an experimental unit to random treatments, are among the most prevalent designs used in the technology sector, with applic…
Anytime-Valid Linear Models and Regression Adjusted Causal Inference in Randomized Experiments
Michael Lindon, Dae Woong Ham, Martin Tingley +1
Linear models are foundational tools in statistics and ubiquitous across the applied sciences. However, conventional statistical inference -- such as -tests and -tests -- are…
Time-Varying Causal Survival Learning
Xiang Meng, Iavor Bojinov
This work bridges the gap between staggered adoption designs and survival analysis to estimate causal effects in settings with time-varying treatments, addressing a fundamental cha…
An Experimental Design for Anytime-Valid Causal Inference on Multi-Armed Bandits
Biyonka Liang, Iavor Bojinov
Experimentation is crucial for managers to rigorously quantify the value of a change and determine if it leads to a statistically significant improvement over the status quo. As co…