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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…
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…