Machine Learning

, Volume 95, Issue 1, pp 11–26

Water pipe condition assessment: a hierarchical beta process approach for sparse incident data

  • Zhidong Li
  • Bang Zhang
  • Yang Wang
  • Fang Chen
  • Ronnie Taib
  • Vicky Whiffin
  • Yi Wang
Article

DOI: 10.1007/s10994-013-5386-z

Cite this article as:
Li, Z., Zhang, B., Wang, Y. et al. Mach Learn (2014) 95: 11. doi:10.1007/s10994-013-5386-z

Abstract

Prediction of water pipe condition through statistical modelling is an important element for the risk management strategy of water distribution systems. In this work a hierarchical nonparametric model has been used to enhance the performance of pipe condition assessment. The main aims of this work are three-fold: (1) For sparse incident data, develop an efficient approximate inference algorithm based on hierarchical beta process. (2) Apply the hierarchical beta process based method to water pipe condition assessment. (3) Interpret the outcomes in financial terms usable by the water utilities. The experimental results show superior performance of the proposed method compared to current best practice methods, leading to substantial savings on reactive repairs and maintenance, as well as improved prioritization for capital expenditure.

Keywords

Hierarchical beta process Bayesian nonparametric Water main Condition assessment Sparse data 

Copyright information

© The Author(s) 2013

Authors and Affiliations

  • Zhidong Li
    • 1
    • 2
  • Bang Zhang
    • 1
    • 2
  • Yang Wang
    • 1
  • Fang Chen
    • 1
    • 2
  • Ronnie Taib
    • 1
  • Vicky Whiffin
    • 3
  • Yi Wang
    • 1
    • 2
  1. 1.National ICT AustraliaSydneyAustralia
  2. 2.University of New South WalesSydneyAustralia
  3. 3.Sydney WaterSydneyAustralia