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Proceedings Paper

Just-in-case scheduling for automatic telescopes
Author(s): Keith Swanson; John Bresina; Mark Drummond
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Paper Abstract

It is commonly acknowledged that there is a tradeoff between schedule quality and schedule robustness. In general terms, schedules that are of high quality tend to be of low robustness, and schedules that are robust tend to be of low quality. To better manage the robustness/quality tradeoff, we have developed an algorithm that implements what we call Just-In-Case scheduling; this algorithm explicitly considers the way in which scheduled actions might fail and how such failures can impact the executability of a schedule. Just-In-Case scheduling is able to build schedules that are robust and of high quality. The Just-In-Case algorithm is motivated in this paper by a specific telescope scheduling problem, and the paper presents the results of an experiment, carried out using real telescope scheduling data, that illustrates the performance improvement one can expect from using it.

Paper Details

Date Published: 1 March 1994
PDF: 10 pages
Proc. SPIE 2244, Knowledge-Based Artificial Intelligence Systems in Aerospace and Industry, (1 March 1994); doi: 10.1117/12.169393
Show Author Affiliations
Keith Swanson, NASA Ames Research Ctr. (United States)
John Bresina, NASA Ames Research Ctr. and Recom Technologies (United States)
Mark Drummond, NASA Ames Research Ctr. and Recom Technologies (United States)


Published in SPIE Proceedings Vol. 2244:
Knowledge-Based Artificial Intelligence Systems in Aerospace and Industry
Wray Buntine; Doug H. Fisher, Editor(s)

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