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Home / Proceedings / Proceedings of the AAAI Conference on Artificial Intelligence

Envelope-Based Approaches to Real-Time Heuristic Search

February 1, 2023

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Authors

Kevin Gall

University of New Hampshire


Bence Cserna

University of New Hampshire


Wheeler Ruml

University of New Hampshire


DOI:

10.1609/aaai.v34i03.5614


Abstract:

In real-time heuristic search, the planner must return the next action for the agent within a pre-specified time bound. Many algorithms for this setting are ‘agent-centered’ in that, at every iteration, they only expand states near the agent's current state, discarding the search frontier afterwards. In this paper, we investigate the alternative paradigm in which the search expands a single ever-growing envelope of states. Previous work on envelope-based methods restricts the agent to move along the generated search tree. We propose a more flexible approach in which an auxiliary search is performed within the envelope to guide the agent toward a promising frontier node. Experimental results indicate that intra-envelope search is beneficial in state spaces that are highly interconnected, such as those for grid pathfinding.

Topics: AAAI

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HOW TO CITE:

Kevin Gall||Bence Cserna||Wheeler Ruml Envelope-Based Approaches to Real-Time Heuristic Search Proceedings of the AAAI Conference on Artificial Intelligence (2020) 2351-2358.

Kevin Gall||Bence Cserna||Wheeler Ruml Envelope-Based Approaches to Real-Time Heuristic Search AAAI 2020, 2351-2358.

Kevin Gall||Bence Cserna||Wheeler Ruml (2020). Envelope-Based Approaches to Real-Time Heuristic Search. Proceedings of the AAAI Conference on Artificial Intelligence, 2351-2358.

Kevin Gall||Bence Cserna||Wheeler Ruml. Envelope-Based Approaches to Real-Time Heuristic Search. Proceedings of the AAAI Conference on Artificial Intelligence 2020 p.2351-2358.

Kevin Gall||Bence Cserna||Wheeler Ruml. 2020. Envelope-Based Approaches to Real-Time Heuristic Search. "Proceedings of the AAAI Conference on Artificial Intelligence". 2351-2358.

Kevin Gall||Bence Cserna||Wheeler Ruml. (2020) "Envelope-Based Approaches to Real-Time Heuristic Search", Proceedings of the AAAI Conference on Artificial Intelligence, p.2351-2358

Kevin Gall||Bence Cserna||Wheeler Ruml, "Envelope-Based Approaches to Real-Time Heuristic Search", AAAI, p.2351-2358, 2020.

Kevin Gall||Bence Cserna||Wheeler Ruml. "Envelope-Based Approaches to Real-Time Heuristic Search". Proceedings of the AAAI Conference on Artificial Intelligence, 2020, p.2351-2358.

Kevin Gall||Bence Cserna||Wheeler Ruml. "Envelope-Based Approaches to Real-Time Heuristic Search". Proceedings of the AAAI Conference on Artificial Intelligence, (2020): 2351-2358.

Kevin Gall||Bence Cserna||Wheeler Ruml. Envelope-Based Approaches to Real-Time Heuristic Search. AAAI[Internet]. 2020[cited 2023]; 2351-2358.


ISSN: 2374-3468


Published by AAAI Press, Palo Alto, California USA
Copyright 2022, Association for the Advancement of
Artificial Intelligence 1900 Embarcadero Road, Suite
101, Palo Alto, California 94303 All Rights Reserved

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