Journal of Contaminant Hydrology, Volume (242), Year (2021-10)

Title : ( Predictive modeling of selected trace elements in groundwater using hybrid algorithms of iterative classifier optimizer )

Authors: Khabat Khosravi , Rahim Barzegar , Ali Golkarian , Gianluigi Busico , Emilio Cuoco , Micol Mastrocicco , Nicolo Colombani , Dario Tedesco , Maria Margarita Ntona , Nerantzis Kazakis ,

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Abstract

Trace element (TE) pollution in groundwater resources is one of the major concerns in both developing and developed countries as it can directly affect human health. Arsenic (As), Barium (Ba), and Rubidium (Rb) can be considered as TEs naturally present in groundwater due to water-rock interactions in Campania Plain (CP) aquifers, in South Italy. Their concentration could be predicted via some readily available input variables using an algorithm like the iterative classifier optimizer (ICO) for regression, and novel hybrid algorithms with additive regression (AR-ICO), attribute selected classifier (ASC-ICO) and bagging (BA-ICO). In this regard, 244 groundwater samples were collected from water wells within the CP and analyzed with respect to the electrical conductivity, pH, major ions and selected TEs. To develop the models, the available dataset was divided randomly into two subsets for model training (70% of the dataset) and evaluation (30% of the dataset), respectively. Based on the correlation coefficient (r), different input variables combinations were constructed to find the most effective one. Each model\\\'s performance was evaluated using common statistical and visual metrics. Results indicated that the prediction of As and Ba concentrations strongly depends on HCO3???? , while Na+ is the most effective variable on Rb prediction. Also, the findings showed that the most powerful predictive models were those that used all the available input variables. According to models\\\' performance evaluation metrics, the hybrid ASC-ICO outperformed other hybrid (BA- and AR-ICO) and standalone (ICO) algorithms to predict As and Ba concentrations, while both hybrid ASC- and BA-ICO models had higher accuracy and lower error than other algorithms for Rb prediction.

Keywords

, Trace element, Machine learning, Hybrid model, Iterative classifier optimizer, Campania plain, Groundwater pollution
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@article{paperid:1085656,
author = {Khabat Khosravi and Rahim Barzegar and Golkarian, Ali and Gianluigi Busico and Emilio Cuoco and Micol Mastrocicco and Nicolo Colombani and Dario Tedesco and Maria Margarita Ntona and Nerantzis Kazakis},
title = {Predictive modeling of selected trace elements in groundwater using hybrid algorithms of iterative classifier optimizer},
journal = {Journal of Contaminant Hydrology},
year = {2021},
volume = {242},
month = {October},
issn = {0169-7722},
keywords = {Trace element; Machine learning; Hybrid model; Iterative classifier optimizer; Campania plain; Groundwater pollution},
}

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%0 Journal Article
%T Predictive modeling of selected trace elements in groundwater using hybrid algorithms of iterative classifier optimizer
%A Khabat Khosravi
%A Rahim Barzegar
%A Golkarian, Ali
%A Gianluigi Busico
%A Emilio Cuoco
%A Micol Mastrocicco
%A Nicolo Colombani
%A Dario Tedesco
%A Maria Margarita Ntona
%A Nerantzis Kazakis
%J Journal of Contaminant Hydrology
%@ 0169-7722
%D 2021

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