,
Josef Erik Sedláček
Creative Commons Attribution 4.0 International license
This paper deals with local certification, specifically locally checkable proofs: given a graph property, the task is to certify whether a graph satisfies the property. The verification of this certification needs to be done locally without the knowledge of the whole graph. We examine the trade-off between the visibility radius and the size of certificates. We describe a procedure that decreases the radius by encoding the neighbourhood of each vertex into its certificate. We also provide a corresponding lower bound on the required certificate size increase, showing that such an approach is close to optimal.
@InProceedings{kristan_et_al:LIPIcs.DISC.2024.49,
author = {K\v{r}i\v{s}\v{t}an, Jan Maty\'{a}\v{s} and Sedl\'{a}\v{c}ek, Josef Erik},
title = {{Brief Announcement: Decreasing Verification Radius in Local Certification}},
booktitle = {38th International Symposium on Distributed Computing (DISC 2024)},
pages = {49:1--49:6},
series = {Leibniz International Proceedings in Informatics (LIPIcs)},
ISBN = {978-3-95977-352-2},
ISSN = {1868-8969},
year = {2024},
volume = {319},
editor = {Alistarh, Dan},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.DISC.2024.49},
URN = {urn:nbn:de:0030-drops-212773},
doi = {10.4230/LIPIcs.DISC.2024.49},
annote = {Keywords: Local certification, locally checkable proofs, proof-labeling schemes, graphs, distributed computing}
}