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Distribution-free checkpoint placement algorithms based on min-max principle

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4 Author(s)
Ozaki, T. ; Dept. of Inf. Eng., Hiroshima Univ. ; Dohi, T. ; Okamura, H. ; Kaio, N.

In this paper, we consider two kinds of sequential checkpoint placement problems with infinite/finite time horizon. For these problems, we apply approximation methods based on the variational principle and develop computation algorithms to derive the optimal checkpoint sequence approximately. Next, we focus on the situation where the knowledge on system failure is incomplete, i.e., the system failure time distribution is unknown. We develop the so-called min-max checkpoint placement methods to determine the optimal checkpoint sequence under an uncertain circumstance in terms of the system failure time distribution. In numerical examples, we investigate quantitatively the proposed distribution-free checkpoint placement methods, and refer to their potential applicability in practice

Published in:

Dependable and Secure Computing, IEEE Transactions on  (Volume:3 ,  Issue: 2 )

Date of Publication:

April-June 2006

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