3 papers
math.ST2025
Design Stability in Adaptive Experiments: Implications for Treatment Effect Estimation
Saikat Sengupta, Koulik Khamaru, Suvrojit Ghosh +1
We study the problem of estimating the average treatment effect (ATE) under sequentially adaptive treatment assignment mechanisms. In contrast to classical completely randomized de…
stat.ME2024
PICS: A sequential approach to obtain optimal designs for non-linear models leveraging closed-form solutions for faster convergence
Suvrojit Ghosh, Koulik Khamaru, Tirthankar Dasgupta
D-Optimal designs for estimating parameters of response models are derived by maximizing the determinant of the Fisher information matrix. For non-linear models, the Fisher informa…
math.ST2023
Statistical Limits of Adaptive Linear Models: Low-Dimensional Estimation and Inference
Licong Lin, Mufang Ying, Suvrojit Ghosh +2
Estimation and inference in statistics pose significant challenges when data are collected adaptively. Even in linear models, the Ordinary Least Squares (OLS) estimator may fail to…