Reconstructing random graphs from distance queries
Combinatorics
2024-07-31 v2
Abstract
We estimate the minimum number of distance queries that is sufficient to reconstruct the binomial random graph with constant diameter with high probability. We get a tight (up to a constant factor) answer for all outside "threshold windows" around , : with high probability the query complexity equals , where is the diameter of the random graph. This demonstrates the following non-monotone behaviour: the query complexity jumps down at moments when the diameter gets larger; yet, between these moments the query complexity grows. We also show that there exists a non-adaptive algorithm that reconstructs the random graph with distance queries with high probability, and this is best possible.
Cite
@article{arxiv.2404.18318,
title = {Reconstructing random graphs from distance queries},
author = {Michael Krivelevich and Maksim Zhukovskii},
journal= {arXiv preprint arXiv:2404.18318},
year = {2024}
}