Sensitivity and dynamic distance oracles via generic matrices and frobenius form

A Karczmarz, P Sankowski - 2023 IEEE 64th Annual …, 2023 - ieeexplore.ieee.org
Algebraic techniques have had an important impact on graph algorithms so far. Porting
them, eg, the matrix inverse, into the dynamic regime improved best-known bounds for …

Constructing a Distance Sensitivity Oracle in Time

Y Gu, H Ren - arxiv preprint arxiv:2102.08569, 2021 - arxiv.org
We continue the study of distance sensitivity oracles (DSOs). Given a directed graph $ G $
with $ n $ vertices and edge weights in $\{1, 2,\dots, M\} $, we want to build a data structure …

Optimal vertex fault tolerant spanners (for fixed stretch)

G Bodwin, M Dinitz, M Parter, VV Williams - … of the Twenty-Ninth Annual ACM …, 2018 - SIAM
A k-spanner of a graph G is a sparse subgraph H whose shortest path distances match
those of G up to a multiplicative error k. In this paper we study spanners that are resistant to …

Improved distance sensitivity oracles with subcubic preprocessing time

H Ren - Journal of Computer and System Sciences, 2022 - Elsevier
We consider the problem of building distance sensitivity oracles (DSOs). Given a directed
graph G=(V, E) with edge weights in {1, 2,…, M}, we need to preprocess it into a data …

Maintaining exact distances under multiple edge failures

R Duan, H Ren - Proceedings of the 54th Annual ACM SIGACT …, 2022 - dl.acm.org
We present the first compact distance oracle that tolerates multiple failures and maintains*
exact* distances. Given an undirected weighted graph G=(V, E) and an arbitrarily large …

Space-Efficient Fault-Tolerant Diameter Oracles

D Bilò, S Cohen, T Friedrich, M Schirneck - arxiv preprint arxiv …, 2021 - arxiv.org
We design $ f $-edge fault-tolerant diameter oracles ($ f $-FDOs). We preprocess a given
graph $ G $ on $ n $ vertices and $ m $ edges, and a positive integer $ f $, to construct a …

Approximate distance oracles subject to multiple vertex failures

R Duan, Y Gu, H Ren - Proceedings of the 2021 ACM-SIAM Symposium on …, 2021 - SIAM
Given an undirected graph G=(V, E) of n vertices and m edges with weights in [1, W], we
construct vertex sensitive distance oracles (VSDO), which are data structures that …

Deterministic sensitivity oracles for diameter, eccentricities and all pairs distances

D Bilò, K Choudhary, S Cohen, T Friedrich… - arxiv preprint arxiv …, 2022 - arxiv.org
We construct data structures for extremal and pairwise distances in directed graphs in the
presence of transient edge failures. Henzinger et al.[ITCS 2017] initiated the study of fault …

Near-optimal deterministic single-source distance sensitivity oracles

D Bilò, S Cohen, T Friedrich, M Schirneck - arxiv preprint arxiv …, 2021 - arxiv.org
Given a graph with a source vertex $ s $, the Single Source Replacement Paths (SSRP)
problem is to compute, for every vertex $ t $ and edge $ e $, the length $ d (s, t, e) $ of a …

An improved algorithm for incremental DFS tree in undirected graphs

L Chen, R Duan, R Wang, H Zhang, T Zhang - arxiv preprint arxiv …, 2016 - arxiv.org
Depth first search (DFS) tree is one of the most well-known data structures for designing
efficient graph algorithms. Given an undirected graph $ G=(V, E) $ with $ n $ vertices and …