Deterministic decremental sssp and approximate min-cost flow in almost-linear time

A Bernstein, MP Gutenberg… - 2021 IEEE 62nd Annual …, 2022 - ieeexplore.ieee.org
In the decremental single-source shortest paths problem, the goal is to maintain distances
from a fixed source s to every vertex v in an m-edge graph undergoing edge deletions. In …

Dynamic algorithms for packing-covering lps via multiplicative weight updates

S Bhattacharya, P Kiss, T Saranurak - Proceedings of the 2023 Annual ACM …, 2023 - SIAM
In the dynamic linear program (LP) problem, we are given an LP undergoing updates and
we need to maintain an approximately optimal solution. Recently, significant attention (eg …

Submodular function maximization in parallel via the multilinear relaxation

C Chekuri, K Quanrud - Proceedings of the Thirtieth Annual ACM-SIAM …, 2019 - SIAM
Balkanski and Singer [4] recently initiated the study of adaptivity (or parallelism) for
constrained submodular function maximization, and studied the setting of a cardinality …

Approximating optimal transport with linear programs

K Quanrud - arXiv preprint arXiv:1810.05957, 2018 - arxiv.org
arXiv:1810.05957v2 [cs.DS] 21 Oct 2018 Page 1 arXiv:1810.05957v2 [cs.DS] 21 Oct 2018
Approximating optimal transport with linear programs Kent Quanrud∗ October 23, 2018 Abstract …

Faster approximation algorithms for geometric set cover

TM Chan, Q He - arXiv preprint arXiv:2003.13420, 2020 - arxiv.org
We improve the running times of $ O (1) $-approximation algorithms for the set cover
problem in geometric settings, specifically, covering points by disks in the plane, or covering …

Fast LP-based approximations for geometric packing and covering problems

C Chekuri, S Har-Peled, K Quanrud - … of the Fourteenth Annual ACM-SIAM …, 2020 - SIAM
We derive fast approximation schemes for LP relaxations of several well-studied geometric
optimization problems that include packing, covering, and mixed packing and covering …

On approximating (sparse) covering integer programs

C Chekuri, K Quanrud - Proceedings of the Thirtieth Annual ACM-SIAM …, 2019 - SIAM
We consider approximation algorithms for covering integer programs of the form min〈 c, x〉
over x∊ ℤ≥ 0 n st Ax≥ b and x≤ d; where A∊ ℝ≥ 0 m× n, b∊ ℝ≥ 0 m, and c, d∊ ℝ≥ 0 n …

Fully Dynamic All-Pairs Shortest Paths: Likely Optimal Worst-Case Update Time

X Mao - Proceedings of the 56th Annual ACM Symposium on …, 2024 - dl.acm.org
The All-Pairs Shortest Paths (APSP) problem is one of the fundamental problems in
theoretical computer science. It asks to compute the distance matrix of a given n-vertex …

Partial resampling to approximate covering integer programs

A Chen, DG Harris, A Srinivasan - Proceedings of the twenty-seventh annual …, 2016 - SIAM
We consider positive covering integer programs, which generalize set cover and which have
attracted a long line of research developing (randomized) approximation algorithms …

Multiplicative auction algorithm for approximate maximum weight bipartite matching

DW Zheng, M Henzinger - Mathematical Programming, 2024 - Springer
We present an auction algorithm using multiplicative instead of constant weight updates to
compute a (1-ε)-approximate maximum weight matching (MWM) in a bipartite graph with n …