Water distribution system reliability assessment based on nonparametric approach
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG42__%2F19%3A00537289" target="_blank" >RIV/60162694:G42__/19:00537289 - isvavai.cz</a>
Alternative codes found
RIV/60162694:G43__/19:00537289
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Water distribution system reliability assessment based on nonparametric approach
Original language description
A water distribution system is a key part of the critical infrastructure. Its elements are monitored to obtain the information about the condition of the system. However, recorded data sets do not usually contain the information on every single event and there is no detailed information regarding the data structure. More often, the data are aggregated, usually in a monthly manner. Details in the data concerning failure dates, the length of down time, etc. would significantly help to make more sophisticated assessment. Having relatively poor data in hand, we employed nonparametric regression estimators - regressogram and kernel smoothers - to assess a reliability measure: the rate of occurrence of failures. We compared the nonparametric approach with widely used parametric methods, namely with the power law model and the logarithmic linear model. All of the mentioned methods were used for the sake of modeling the rate of occurrence of failures of the water distribution system. Also the usage of the nonparametric estimates was supported by a simulation study focused on the interpolating and extrapolating predictive power of the used models. The outcomes of the study show that for a constant and monotone failure rates the models are comparable, but for the bathtub shaped failure rate the nonparametric model overcomes the parametric ones.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10102 - Applied mathematics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 29th European Safety and Reliability Conference - ESREL 2019
ISBN
978-981-11-2724-3
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
1056-1063
Publisher name
Research Publishing Services
Place of publication
Singapore
Event location
Hannover, Germany
Event date
Sep 22, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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