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Chandra Chekuri

3 accepted papers

2025

Corporate Needs You to Find the Difference: Revisiting Submodular and Supermodular Ratio Optimization Problems

NeurIPS 2025spotlight

We consider the following question: given a submodular or supermodular set function $f:2^V \to \mathbb{R}$, how should one minimize or maximize its average value $f(S)/|S|$ over non-empty subsets $S\subseteq V$? This problem generalizes several well-known objectives including Densest Subgraph (DSG),…

Cited by 0SourcecodeScholar
2024

1/2-Approximate MMS Allocation for Separable Piecewise Linear Concave Valuations

AAAI 2024technical

We study fair distribution of a collection of m indivisible goods among a group of n agents, using the widely recognized fairness principles of Maximin Share (MMS) and Any Price Share (APS). These principles have undergone thorough investigation within the context of additive valuations. We explore…

Cited by 4SourcePDFScholar
2022

Faster and Scalable Algorithms for Densest Subgraph and Decomposition

NeurIPS 2022accept

We study the densest subgraph problem (DSG) and the densest subgraph local decomposition problem (DSG-LD) in undirected graphs. We also consider supermodular generalizations of these problems. For large scale graphs simple iterative algorithms perform much better in practice than theoretically fast…

Cited by 28SourcePDFScholar