3 citations · 10 across the 7 of their papers we have counts for
5 papers · 1 filter
Sharp Signal Detection Under Ferromagnetic Ising Models
Sohom Bhattacharya, Rajarshi Mukherjee, Gourab Ray
In this paper we study the effect of dependence on detecting a class of structured signals in Ferromagnetic Ising models. Natural examples of our class include Ising Models on latt…
On Ensembling vs Merging: Least Squares and Random Forests under Covariate Shift
Maya Ramchandran, Rajarshi Mukherjee
It has been postulated and observed in practice that for prediction problems in which covariate data can be naturally partitioned into clusters, ensembling algorithms based on suit…
On Minimax Exponents of Sparse Testing
Rajarshi Mukherjee, Subhabrata Sen
We consider exact asymptotics of the minimax risk for global testing against sparse alternatives in the context of high dimensional linear regression. Our results characterize the…
On Testing for Parameters in Ising Models
Rajarshi Mukherjee, Gourab Ray
We consider testing for the parameters of Ferromagnetic Ising models. While testing for the presence of possibly sparse magnetizations, we provide a general lower bound of minimax…
On Efficiency of the Plug-in Principle for Estimating Smooth Integrated Functionals of a Nonincreasing Density
Rajarshi Mukherjee, Bodhisattva Sen
We consider the problem of estimating smooth integrated functionals of a monotone nonincreasing density on using the nonparametric maximum likelihood based plug-in…