3 papers
math.ST2026
Estimation of multiple precision matrices under shared support with heterogeneous edge strengths
Sayan Ranjan Bhowal, Debashis Paul, Gopal K Basak +1
Estimating multiple precision matrices in high-dimension presents significant challenges, particularly when distinct datasets share a common conditional dependency structure but ex…
stat.ME2026
Linear Regression: Inference Based on Cluster Estimates
Subhodeep Dey, Gopal K. Basak, Samarjit Das
This article proposes a novel estimator for regression coefficients in clustered data that explicitly accounts for within-cluster dependence. We study the asymptotic properties of…
math.ST2025
Statistical inference using debiased group graphical lasso for multiple sparse precision matrices
Sayan Ranjan Bhowal, Debashis Paul, Gopal K Basak +1
Debiasing group graphical lasso estimates enables statistical inference when multiple Gaussian graphical models share a common sparsity pattern. We analyze the estimation propertie…