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- S.N. Bose National Centre for Basic SciencesIN60 papers
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57 papers · 1 filter
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…
Quantile processes and their applications in finite populations
Anurag Dey, Probal Chaudhuri
The weak convergence of the quantile processes, which are constructed based on different estimators of the finite population quantiles, is shown under various well-known sampling d…
Analysis of the rSVDdpd Algorithm: A Robust Singular Value Decomposition Method using Density Power Divergence
Subhrajyoty Roy, Abhik Ghosh, Ayanendranath Basu
The traditional method of computing singular value decomposition (SVD) of a data matrix is based on a least squares principle, thus, is very sensitive to the presence of outliers.…
A comparison of estimators of mean and its functions in finite populations
Anurag Dey, Probal Chaudhuri
Several well known estimators of finite population mean and its functions are investigated under some standard sampling designs. Such functions of mean include the variance, the co…
On High Dimensional Behaviour of Some Two-Sample Tests Based on Ball Divergence
Bilol Banerjee, Anil K. Ghosh
In this article, we propose some two-sample tests based on ball divergence and investigate their high dimensional behavior. First, we study their behavior for High Dimension, Low S…
Posterior Contraction rate and Asymptotic Bayes Optimality for one-group shrinkage priors in sparse normal means problem
Sayantan Paul, Arijit Chakrabarti
We consider a high-dimensional sparse normal means model where the goal is to estimate the mean vector assuming the proportion of non-zero means is unknown. We model the mean vecto…