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Lior Siag

3 accepted papers

2026

Bidirectional Bounded-Suboptimal Heuristic Search with Consistent Heuristics

AAAI 2026technical

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 solu

Cited by 0SourcePDFScholar
2025

Anchor Search: A Unified Framework for Suboptimal Bidirectional Search

AAAI 2025technical

In recent years the understanding of optimal bidirectional heuristic search (BiHS) has progressed significantly. Yet, Bi-HS is relatively unexplored in unbounded suboptimal search. Front-to-end (F2E) and front-to-front (F2F) bidirectional search have been used in optimal algorithms, but adapting the…

2023

Front-to-End Bidirectional Heuristic Search with Consistent Heuristics: Enumerating and Evaluating Algorithms and Bounds

IJCAI 2023poster

Recent research on bidirectional heuristic search (BiHS) is based on the must-expand pairs theory (MEP theory), which describes which pairs of nodes must be expanded during the search to guarantee the optimality of solutions. A separate line of research in BiHS has proposed algorithms that use lowe…

Cited by 2SourcePDFScholar