Bidirectional Bounded-Suboptimal Heuristic Search with Consistent Heuristics (Extended Abstract)

Shahaf S. Shperberg, Natalie Morad, Lior Siag, Ariel Felner, Dor Atzmon

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Recent advancements in bidirectional heuristic search have yielded significant theoretical insights and novel algorithms. While most previous work has concentrated on optimal search methods, this paper focuses on bounded-suboptimal bidirectional search, where a bound on the suboptimality of the solution cost is specified. We build upon the state-of-the-art optimal bidirectional search algorithm, BAE*, designed for consistent heuristics, and introduce several variants of BAE* specifically tailored for the bounded-suboptimal context. Through experimental evaluation, we compare the performance of these new variants against other bounded-suboptimal bidirectional algorithms as well as the standard weighted A* algorithm. Our results demonstrate that each algorithm excels under distinct conditions, highlighting the strengths and weaknesses of each approach.

Original languageEnglish
Title of host publication18th International Symposium on Combinatorial Search, SoCS 2025
EditorsMaxim Likhachev, Hana Rudová, Enrico Scala
PublisherAssociation for the Advancement of Artificial Intelligence
Pages265-266
Number of pages2
ISBN (Print)9781577359012
DOIs
StatePublished - 2025
Event18th International Symposium on Combinatorial Search, SoCS 2025 - Glasgow, United Kingdom
Duration: 12 Aug 202515 Aug 2025

Publication series

NameThe International Symposium on Combinatorial Search
Volume18
ISSN (Print)2832-9171
ISSN (Electronic)2832-9163

Conference

Conference18th International Symposium on Combinatorial Search, SoCS 2025
Country/TerritoryUnited Kingdom
CityGlasgow
Period12/08/2515/08/25

Bibliographical note

Publisher Copyright:
© 2025, Association for the Advancement of Artificial Intelligence (www.aaai.org). All rights reserved.

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