Nearly Optimal Fault Tolerant Distance Oracle
<|reference_start|>Nearly Optimal Fault Tolerant Distance Oracle: We present an $f$-fault tolerant distance oracle for an undirected weighted graph where each edge has an integral weight from $[1 \dots W]$. Given a set $F$ of $f$ edges, as well as a source node $s$ and a destination node $t$, our oracle returns the \emph{shortest path} from $s$ to $t$ avoiding $F$ in $O((cf \log (nW))^{O(f^2)})$ time, where $c > 1$ is a constant. The space complexity of our oracle is $O(f^4n^2\log^2 (nW))$. For a constant $f$, our oracle is nearly optimal both in terms of space and time (barring some logarithmic factor).<|reference_end|>
@article{dey2024nearly,
    title={Nearly Optimal Fault Tolerant Distance Oracle},
    author={Dipan Dey, Manoj Gupta},
    journal={arXiv preprint arXiv:2402.12832},
    year={2024},
    archivePrefix={arXiv},
    eprint={2402.12832},
    primaryClass={cs.DS}
}