Distributed approximation algorithms for weighted shortest paths

D Nanongkai - Proceedings of the forty-sixth annual ACM symposium …, 2014 - dl.acm.org
A distributed network is modeled by a graph having n nodes (processors) and diameter D.
We study the time complexity of approximating weighted (undirected) shortest paths on …

A deterministic almost-tight distributed algorithm for approximating single-source shortest paths

M Henzinger, S Krinninger, D Nanongkai - Proceedings of the forty …, 2016 - dl.acm.org
We present a deterministic (1+ o (1))-approximation O (n 1/2+ o (1)+ D 1+ o (1))-time
algorithm for solving the single-source shortest paths problem on distributed weighted …

Graph partitioning with natural cuts

D Delling, AV Goldberg, I Razenshteyn… - … Parallel & Distributed …, 2011 - ieeexplore.ieee.org
We present a novel approach to graph partitioning based on the notion of cuts. Our
algorithm, called PUNCH, has two phases. The first phase performs a series of minimum-cut …

Distributed edge connectivity in sublinear time

M Daga, M Henzinger, D Nanongkai… - Proceedings of the 51st …, 2019 - dl.acm.org
We present the first sublinear-time algorithm that can compute the edge connectivity λ of a
network exactly on distributed message-passing networks (the CONGEST model), as long …

Fully dynamic exact edge connectivity in sublinear time

G Goranci, M Henzinger, D Nanongkai… - Proceedings of the 2023 …, 2023 - SIAM
Given a simple n-vertex, m-edge graph G undergoing edge insertions and deletions, we
give two new fully dynamic algorithms for exactly maintaining the edge connectivity of G in Õ …

Distributed weighted min-cut in nearly-optimal time

M Dory, Y Efron, S Mukhopadhyay… - Proceedings of the 53rd …, 2021 - dl.acm.org
Minimum-weight cut (min-cut) is a basic measure of a network's connectivity strength. While
the min-cut can be computed efficiently in the sequential setting [Karger STOC'96], there was …

Almost-tight distributed minimum cut algorithms

D Nanongkai, HH Su - International Symposium on Distributed Computing, 2014 - Springer
We study the problem of computing the minimum cut in a weighted distributed message-
passing networks (the CONGEST model). Let λ be the minimum cut, n be the number of …

Distributed Exact Weighted All-Pairs Shortest Paths in Õ (n^{5/4}) Rounds

CC Huang, D Nanongkai… - 2017 IEEE 58th Annual …, 2017 - ieeexplore.ieee.org
We study computing all-pairs shortest paths (APSP) on distributed networks (the CONGEST
model). The goal is for every node in the (weighted) network to know the distance from every …

Small cuts and connectivity certificates: A fault tolerant approach

M Parter - arxiv preprint arxiv:1908.03022, 2019 - arxiv.org
We revisit classical connectivity problems in the CONGEST model of distributed computing.
By using techniques from fault tolerant network design, we show improved constructions …

Fast Broadcast in Highly Connected Networks

S Chandra, YJ Chang, M Dory, M Ghaffari… - Proceedings of the 36th …, 2024 - dl.acm.org
We revisit the classic broadcast problem, wherein we have k messages, each composed of
O (log n) bits, distributed arbitrarily across a network. The objective is to broadcast these …