An integrated logit model for contamination event detection in water distribution systems

Water Research
Mashor Housh, Avi Ostfeld

Abstract

The problem of contamination event detection in water distribution systems has become one of the most challenging research topics in water distribution systems analysis. Current attempts for event detection utilize a variety of approaches including statistical, heuristics, machine learning, and optimization methods. Several existing event detection systems share a common feature in which alarms are obtained separately for each of the water quality indicators. Unifying those single alarms from different indicators is usually performed by means of simple heuristics. A salient feature of the current developed approach is using a statistically oriented model for discrete choice prediction which is estimated using the maximum likelihood method for integrating the single alarms. The discrete choice model is jointly calibrated with other components of the event detection system framework in a training data set using genetic algorithms. The fusing process of each indicator probabilities, which is left out of focus in many existing event detection system models, is confirmed to be a crucial part of the system which could be modelled by exploiting a discrete choice model for improving its performance. The developed methodology is tested ...Continue Reading

References

Aug 29, 1998·Journal of Applied Microbiology·A A GavrielA J Lamb
Jun 21, 2002·The American Journal of the Medical Sciences·Ronald A GreenfieldMichael S Bronze
Jun 20, 2012·Environmental Science & Technology·Lina PerelmanAvi Ostfeld
May 17, 2014·Journal of Environmental Management·Alejandra Burchard-LevineAvi Ostfeld
Jun 24, 2014·Environmental Science. Processes & Impacts·Shuming LiuLei Chen
Dec 4, 2014·Environmental Monitoring and Assessment·Shuming LiuChao Chen

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Citations

Jun 7, 2016·Environmental Science. Processes & Impacts·Ruonan LiHan Che
Feb 26, 2021·Journal of Water Resources Planning and Management·Emily Zechman BerglundTerranna Haxton
Mar 27, 2019·International Journal of Hygiene and Environmental Health·Karen SettyJamie Bartram
Aug 18, 2021·Environmental Science & Technology·Shifa ZhongHuichun Zhang

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