Tree algorithms for set reconciliation

Fuente: arXiv
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Main Authors: Lázaro, Francisco, Stefanović, Čedomir
Format: Preprint
Published: 2025
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_version_ 1866908515617996800
author Lázaro, Francisco
Stefanović, Čedomir
author_facet Lázaro, Francisco
Stefanović, Čedomir
contents In this work, a set reconciliation setting is considered in which two parties have similar sets that they would like to reconcile. In particular, we focus on a divide-and-conquer strategy known as partitioned set reconciliation (PSR), in which the sets to be reconciled are successively partitioned until they contain a number of differences below some predetermined value. Borrowing techniques from tree-algorithms for random-access protocols, we present and analyze a novel set reconciliation scheme that we term enhanced partitioned set reconciliation (EPSR). This approach improves the efficiency in terms of overhead, i.e., it yields a lower communication cost, while keeping the same time and communication round complexity as PSR. Additionally, we simulate the performance of the proposed algorithm in an event-driven simulator. Our findings indicate that this novel protocol nearly halves the communication cost of PSR while maintaining the same time complexity.
format Preprint
id arxiv_https___arxiv_org_abs_2509_02373
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Tree algorithms for set reconciliation
Lázaro, Francisco
Stefanović, Čedomir
Networking and Internet Architecture
Data Structures and Algorithms
Information Theory
In this work, a set reconciliation setting is considered in which two parties have similar sets that they would like to reconcile. In particular, we focus on a divide-and-conquer strategy known as partitioned set reconciliation (PSR), in which the sets to be reconciled are successively partitioned until they contain a number of differences below some predetermined value. Borrowing techniques from tree-algorithms for random-access protocols, we present and analyze a novel set reconciliation scheme that we term enhanced partitioned set reconciliation (EPSR). This approach improves the efficiency in terms of overhead, i.e., it yields a lower communication cost, while keeping the same time and communication round complexity as PSR. Additionally, we simulate the performance of the proposed algorithm in an event-driven simulator. Our findings indicate that this novel protocol nearly halves the communication cost of PSR while maintaining the same time complexity.
title Tree algorithms for set reconciliation
topic Networking and Internet Architecture
Data Structures and Algorithms
Information Theory
url https://arxiv.org/abs/2509.02373