TY - JOUR ID - 59633 TI - Probabilistic Contaminant Source Identification in Water Distribution Infrastructure Systems JO - Civil Engineering Infrastructures Journal JA - CEIJ LA - en SN - 2322-2093 AU - Barandouzi, Mehdy AU - Kerachian, Reza AD - Department of Civil and Environmental Engineering, Virginia Tech, Falls Church, USA. AD - School of Civil Engineering and Center of Excellence for Engineering and Management of Civil Infrastructures, College of Engineering, University of Tehran, Tehran, IRAN Y1 - 2016 PY - 2016 VL - 49 IS - 2 SP - 311 EP - 326 KW - Bayesian Networks (BNs) KW - Probabilistic Neural Networks (PNNs) KW - Support Vector Machines (SVMs) KW - water contamination KW - Water Distribution Infrastructure Systems DO - 10.7508/ceij.2016.02.008 N2 - Large water distribution systems can be highly vulnerable to penetration of contaminant factors caused by different means including deliberate contamination injections. As contaminants quickly spread into a water distribution network, rapid characterization of the pollution source has a high measure of importance for early warning assessment and disaster management. In this paper, a methodology based on Probabilistic Support Vector Machines (PSVMs) is proposed for identifying the contamination source location in drinking water distribution systems. To obtain the required data for training the PSVMs, several computer simulations have been performed over multiple combinations of possible contamination source locations and initial mass injections for a conservative solute. Then the trained probabilistic SVMs have been effectively utilized to identify the upstream zones that are more likely to have the positive detection results. In addition, the results of this method were compared and contrasted with Bayesian Networks (BNs) and Probabilistic Neural Networks (PNNs). The efficiency and versatility of the proposed methodology were examined using the available data and information from water distribution network of the City of Arak in the western part of Iran. UR - https://ceij.ut.ac.ir/article_59633.html L1 - https://ceij.ut.ac.ir/article_59633_fa7d293018c06f3454d6c42c109ddebc.pdf ER -