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Real-Time Planning as Decision-Makin...

Mitchell, Andrew.

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Real-Time Planning as Decision-Making under Uncertainty.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Real-Time Planning as Decision-Making under Uncertainty./
作者:	Mitchell, Andrew.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	55 p.
附註:	Source: Masters Abstracts International, Volume: 58-04.
Contained By:	Masters Abstracts International58-04(E).
標題:	Computer science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13422108
ISBN:	9780438824119

Real-Time Planning as Decision-Making under Uncertainty.
Mitchell, Andrew.

Real-Time Planning as Decision-Making under Uncertainty. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 55 p.

Source: Masters Abstracts International, Volume: 58-04.

Thesis (M.S.)--University of New Hampshire, 2018.

In real-time planning, an agent must select the next action to take within a fixed time bound. Many popular real-time heuristic search methods approach this by expanding nodes using time-limited A* and selecting the action leading toward the frontier node with the lowest f value. In this thesis, we reconsider real-time planning as a problem of decision-making under uncertainty. We treat heuristic values as uncertain evidence and we explore several backup methods for aggregating this evidence. We then propose a novel lookahead strategy that expands nodes to minimize risk, the expected regret in case a non-optimal action is chosen. We evaluate these methods in a simple synthetic benchmark and the sliding tile puzzle and find that they outperform previous methods. This work illustrates how uncertainty can arise even when solving deterministic planning problems, due to the inherent ignorance of time-limited search algorithms about those portions of the state space that they have not computed, and how an agent can benefit from explicitly meta-reasoning about this uncertainty.

ISBN: 9780438824119Subjects--Topical Terms:

523869
Computer science.

Real-Time Planning as Decision-Making under Uncertainty.
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