Depth-first iterative-deepening: an optimal admissible tree search
Artificial Intelligence
Linear-space best-first search
Artificial Intelligence
Artificial intelligence: a modern approach
Artificial intelligence: a modern approach
Robot Motion Planning
Imitation in animals and artifacts
Simulation-based search for hybrid system control and analysis
Simulation-based search for hybrid system control and analysis
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Artificial Intelligence search algorithms search discrete systems. To apply such algorithms to continuous systems, such systems must first be discretized, i.e. approximated as discrete systems. Action-based discretization requires that both action parameters and action timing be discretized. We focus on the problem of action timing discretization.After describing an ε-admissible variant of Korf's recursive best-first search (ε-RBFS), we introduce iterative-refinement ε-admissible recursive best-first search (IR ε-RBFS) which offers significantly better performance for initial time delays between search states over several orders of magnitude. Lack of knowledge of a good time discretization is compensated for by knowledge of a suitable solution cost upper bound.