We study the problem of designing a resilient data structure maintaining a tree under the Faulty-RAM model [Finocchi and Italiano, STOC'04] in which up to delta memory words can be corrupted by an adversary. Our data structure stores a rooted dynamic tree that can be updated via the addition of new leaves, requires linear size, and supports resilient (weighted) level ancestor queries, lowest common ancestor queries, and bottleneck vertex queries in O(delta) worst-case time per operation.

Guala', L., Leucci, S., Ziccardi, I. (2023). Resilient Level Ancestor, Bottleneck, and Lowest Common Ancestor Queries in Dynamic Trees. ALGORITHMICA, 85(6), 1624-1651 [10.1007/s00453-022-01046-3].

Resilient Level Ancestor, Bottleneck, and Lowest Common Ancestor Queries in Dynamic Trees

Guala', L;
2023-01-01

Abstract

We study the problem of designing a resilient data structure maintaining a tree under the Faulty-RAM model [Finocchi and Italiano, STOC'04] in which up to delta memory words can be corrupted by an adversary. Our data structure stores a rooted dynamic tree that can be updated via the addition of new leaves, requires linear size, and supports resilient (weighted) level ancestor queries, lowest common ancestor queries, and bottleneck vertex queries in O(delta) worst-case time per operation.
2023
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore INF/01
English
Level ancestor queries
Lowest common ancestor queries
Bottleneck vertex queries
Resilient data structures
Faulty-RAM model
Dynamic trees
Articolo originariamente presentato al convegno ISAAC 2001 e selezionato come uno dei migliori lavori per far parte di questa Special Issue on Algorithms and Computation su questa rivista.
Guala', L., Leucci, S., Ziccardi, I. (2023). Resilient Level Ancestor, Bottleneck, and Lowest Common Ancestor Queries in Dynamic Trees. ALGORITHMICA, 85(6), 1624-1651 [10.1007/s00453-022-01046-3].
Guala', L; Leucci, S; Ziccardi, I
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/343025
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