Presentation 2003/5/16
A Fast Algorithm to Compute Reliability Importance in a Network System
Takeshi KOIDE, Shuichi SHINMORI, Hiroaki ISHII,
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Abstract(in English) Reliability importance of a component in a system is defined as the rate that the system reliability changes by changing the component's reliability and the reliability importance of a network system is called marginal reliability importance(MRI). This paper deals with the problem to compute MRI for all components in a network system, named CCMRI(Complete Computation for MRI). Hsu et. al. proposed an efficient algorithm using some network reductions for CCMRI where two-terminal reliability is adopted as network reliability. Their algorithm can be applied to the only networks whose reliability can be computed in a polynomial time by the network reductions. This paper proposes an algorithm for CCMRI which can be applied to any network topologies where all-terminal reliability is adopted. Numerical experiments have shown that the proposed algorithm can reduce computational time for CCMRI to approximately 20% of that of a traditional method when near neighbor graph is selected as target network topology.
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Keyword(in English) Reliability Importance / MRI(Marginal Reliability Importance) / Network Reliability / All-terminal Reliability / NP-complete
Paper # R2003-19
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Committee R
Conference Date 2003/5/16(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Fast Algorithm to Compute Reliability Importance in a Network System
Sub Title (in English)
Keyword(1) Reliability Importance
Keyword(2) MRI(Marginal Reliability Importance)
Keyword(3) Network Reliability
Keyword(4) All-terminal Reliability
Keyword(5) NP-complete
1st Author's Name Takeshi KOIDE
1st Author's Affiliation Faculty of Service Industries, University of Marketing and Distribuiton Sciences()
2nd Author's Name Shuichi SHINMORI
2nd Author's Affiliation Faculty of Science, Kagoshima University
3rd Author's Name Hiroaki ISHII
3rd Author's Affiliation Graduate School of Information Science and Technology, Osaka University
Date 2003/5/16
Paper # R2003-19
Volume (vol) vol.103
Number (no) 77
Page pp.pp.-
#Pages 6
Date of Issue