21 citations · 32 across the 8 of their papers we have counts for
4 papers · 1 filter
Positivity in Linear Gaussian Structural Equation Models
Asad Lodhia, Jan-Christian Hütter, Caroline Uhler +1
We study a notion of positivity of Gaussian directed acyclic graphical models corresponding to a non-negativity constraint on the coefficients of the associated structural equation…
Matrix Means and a Novel High-Dimensional Shrinkage Phenomenon
Asad Lodhia, Keith Levin, Elizaveta Levina
Many statistical settings call for estimating a population parameter, most typically the population mean, based on a sample of matrices. The most natural estimate of the population…
Recovering shared structure from multiple networks with unknown edge distributions
Keith Levin, Asad Lodhia, Elizaveta Levina
In increasingly many settings, data sets consist of multiple samples from a population of networks, with vertices aligned across these networks. For example, brain connectivity net…
Marčenko-Pastur Law for Kendall's Tau
Afonso S. Bandeira, Asad Lodhia, Philippe Rigollet
We prove that Kendall's Rank correlation matrix converges to the Marčenko-Pastur law, under the assumption that the observations are i.i.d random vectors , , with…