Just-in-case scheduling for automatic telescopes

Keith Swanson; John Bresina; Mark Drummond

doi:10.1117/12.169393

1 March 1994 Just-in-case scheduling for automatic telescopes

Keith Swanson, John Bresina, Mark Drummond

Proceedings Volume 2244, Knowledge-Based Artificial Intelligence Systems in Aerospace and Industry; (1994) https://doi.org/10.1117/12.169393
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

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.

Citation Download Citation

Keith Swanson, John Bresina, and Mark Drummond "Just-in-case scheduling for automatic telescopes", Proc. SPIE 2244, Knowledge-Based Artificial Intelligence Systems in Aerospace and Industry, (1 March 1994); https://doi.org/10.1117/12.169393

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