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stat.ME2013★ 5 cited
Bayesian Low Rank and Sparse Covariance Matrix Decomposition
Lin Zhang, Abhra Sarkar, Bani K. Mallick
We consider the problem of estimating high-dimensional covariance matrices of a particular structure, which is a summation of low rank and sparse matrices. This covariance structur…
math.ST2013★ 3 cited
Adaptive Posterior Convergence Rates in Bayesian Density Deconvolution with Supersmooth Errors
Abhra Sarkar, Debdeep Pati, Bani K. Mallick +1
Bayesian density deconvolution using nonparametric prior distributions is a useful alternative to the frequentist kernel based deconvolution estimators due to its potentially wide…