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20092025
most citedA convex pseudo-likelihood framework for high dimensional partial correlation estimation with convergence guarantees

118 citations · 689 across the 53 of their papers we have counts for

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6 papers · 1 filter

math.CO2018★ 2 cited

The critical exponent: a novel graph invariant

Dominique Guillot, Apoorva Khare, Bala Rajaratnam

A surprising result of FitzGerald and Horn (1977) shows that is positive semidefinite (p.s.d.) for every entrywise nonnegative p.s.d. matri…

math.CO2016★ 9 cited

Model-free consistency of graph partitioning

Peter Diao, Dominique Guillot, Apoorva Khare +1

In this paper, we exploit the theory of dense graph limits to provide a new framework to study the stability of graph partitioning methods, which we call structural consistency. Bo…

math.CO2015★ 17 cited

Critical exponents of graphs

Dominique Guillot, Apoorva Khare, Bala Rajaratnam

The study of entrywise powers of matrices was originated by Loewner in the pursuit of the Bieberbach conjecture. Since the work of FitzGerald and Horn (1977), it is known that $A^{…

math.CO2014★ 2 cited

Differential calculus on the space of countable labelled graphs

Apoorva Khare, Bala Rajaratnam

The study of very large graphs is a prominent theme in modern-day mathematics. In this paper we develop a rigorous foundation for studying the space of finite labelled graphs and t…

math.CO2014★ 16 cited

Differential Calculus on Graphon Space

Peter Diao, Dominique Guillot, Apoorva Khare +1

Recently, the theory of dense graph limits has received attention from multiple disciplines including graph theory, computer science, statistical physics, probability, statistics,…

math.CO2011

Sparse Matrix Decompositions and Graph Characterizations

Kshitij Khare, Bala Rajaratnam

The question of when zeros (i.e., sparsity) in a positive definite matrix are preserved in its Cholesky decomposition, and vice versa, was addressed by Paulsen et al. in the Jo…