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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

  • DOI - Digital Object Identifier

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

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    10102 - Applied mathematics

Result continuities

  • Project

  • 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

  • e-ISSN

  • 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