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Safe Reliability Assessment through Probabilistic Constraint Reasoning
September 2014
ECB2014b
Reliability quantifies the ability of a system to perform its required function under variable conditions. The adequate functioning of a system is often represented by inequality constraints, and its reliability is the probability that such constraints are satisfied, given the uncertainty the variables are subject to. Since this computation is very hard, namely when the systems are modeled with nonlinear constraints, traditional methods adopt a number of approximations, thus computing a value that may be far from the exact one. Moreover, these methods do not provide any guarantees regarding the correctness of the computed results. In this paper, we use the Probabilistic Continuous Constraints framework to efficiently compute safe bounds for the reliability of a system, and illustrate it on a number of representative examples.
In proceedings
Elsa Carvalho, Jorge Cruz, Pedro Barahona
Proceedings of ESREL 2014 - XXIV European Safety and Reliability Conference, Wroclaw, Poland, September 14 - 18
Safety and Reliability: Methodology and Applications
CRC Press
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2269-2277
978-1-138-02681-0
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Elsa Carvalho and Jorge Cruz and Pedro Barahona, Safe Reliability Assessment through Probabilistic Constraint Reasoning, , Proceedings of ESREL 2014 - XXIV European Safety and Reliability Conference, Wroclaw, Poland, September 14 - 18, Safety and Reliability: Methodology and Applications, CRC Press, ISBN 978-1-138-02681-0, Pag. 2269-2277, September 2014.
<a href="/people/members/view.php?code=8d1b2918d558af8e9308270b485b62a8" class="author">Elsa Carvalho</a>, <a href="/people/members/view.php?code=3f6f0c9973cdaeab1a3dd815682bb0ac" class="author">Jorge Cruz</a> and <a href="/people/members/view.php?code=7e27bc13fad97e99cd21ea6914d55659" class="author">Pedro Barahona</a>, <b>Safe Reliability Assessment through Probabilistic Constraint Reasoning</b>, <u>Proceedings of ESREL 2014 - XXIV European Safety and Reliability Conference, Wroclaw, Poland, September 14 - 18</u>, Safety and Reliability: Methodology and Applications, CRC Press, ISBN 978-1-138-02681-0, Pag. 2269-2277, September 2014.
@inproceedings {ECB2014b, author = {Elsa Carvalho and Jorge Cruz and Pedro Barahona}, title = {Safe Reliability Assessment through Probabilistic Constraint Reasoning}, booktitle = {Proceedings of ESREL 2014 - XXIV European Safety and Reliability Conference, Wroclaw, Poland, September 14 - 18}, series = {Safety and Reliability: Methodology and Applications}, publisher = {CRC Press}, pages = {2269-2277}, isbn = {978-1-138-02681-0}, abstract = {Reliability quantifies the ability of a system to perform its required function under variable conditions. The adequate functioning of a system is often represented by inequality constraints, and its reliability is the probability that such constraints are satisfied, given the uncertainty the variables are subject to. Since this computation is very hard, namely when the systems are modeled with nonlinear constraints, traditional methods adopt a number of approximations, thus computing a value that may be far from the exact one. Moreover, these methods do not provide any guarantees regarding the correctness of the computed results. In this paper, we use the Probabilistic Continuous Constraints framework to efficiently compute safe bounds for the reliability of a system, and illustrate it on a number of representative examples.}, month = {September}, year = {2014}, }
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