The Single Frontier Bi-Directional Search (SBS) framework was recently introduced. A node in SBS corresponds to a pair of states, one from each of the frontiers and it uses front-tofront heuristics. In this paper we present an enhanced version of SBS, called eSBS, where pruning and caching techniques are applied, which significantly reduce both time and memory needs of SBS. We then present a hybrid of eSBS and IDA* which potentially uses only the square root of the memory required by A* but enables to prune many nodes that IDA* would generate. Experimental results show the benefit of our new approaches on a number of domains. Copyright © 2012, Association for the Advancement of Artificial Intelligence (www.aaai.org). All rights reserved.
Efficient single frontier bidirectional search / Lippi, Marco; Ernandes, Marco; Felner, Ariel. - (2012), pp. 49-56. ((Intervento presentato al convegno 5th International Symposium on Combinatorial Search, SoCS 2012 tenutosi a Niagara Falls, ON, can nel 2012.
Data di pubblicazione: | 2012 |
Titolo: | Efficient single frontier bidirectional search |
Autore/i: | Lippi, Marco; Ernandes, Marco; Felner, Ariel |
Autore/i UNIMORE: | |
Codice identificativo Scopus: | 2-s2.0-84893404064 |
Nome del convegno: | 5th International Symposium on Combinatorial Search, SoCS 2012 |
Luogo del convegno: | Niagara Falls, ON, can |
Data del convegno: | 2012 |
Pagina iniziale: | 49 |
Pagina finale: | 56 |
Citazione: | Efficient single frontier bidirectional search / Lippi, Marco; Ernandes, Marco; Felner, Ariel. - (2012), pp. 49-56. ((Intervento presentato al convegno 5th International Symposium on Combinatorial Search, SoCS 2012 tenutosi a Niagara Falls, ON, can nel 2012. |
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