An advanced deep learning model for predicting water quality index

Ehteram, Mohammad and Ali, Najah Ahmed * and Sherif, Mohsen and El-Shafie, Ahmed (2024) An advanced deep learning model for predicting water quality index. Ecological Indicators, 160. ISSN 1872-7034

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Official URL: https://doi.org/10.1016/j.ecolind.2024.111806

Abstract

Predicting a water quality index (WQI) is important because it serves as an important metric for assessing the overall health and safety of water bodies. Our paper develops a new hybrid model for predicting the WQI. The study uses a combination of a convolutional neural network (CNN), clockwork recurrent neural network (Clockwork RNN), and M5 Tree (CNN-CRNN-M5T) to predict a WQI. The M5T model lacks advanced operators for extracting meaningful data from water quality parameters, so the new model enhances its ability to analyze intricate patterns. The general linear model analysis of variance (GLM-ANOVA) is an improved version of the ANOVA. Our study uses the GLM-ANOVA to determine significant inputs. As all input variables had p < 0.050, they were defined as significant variables. Results showed that NH-NL and PH had the highest and lowest impact, respectively. Our study used the CNN-CRNN-M5T, CNN-CRNN, CRNN-M5T, CNN-M5T, CRNN, CNN, and M5T models to predict the WQI of a large basin in Malaysia. The CNN-CRNN decreased testing mean absolute error (MAE) of the CRNN, CNN, and M5T models by 2.1 %, 12 %, and 15 %, respectively. The CNN-CRNN-M5T model increased Nash–Sutcliffe efficiency coefficient of the other models by 4–20 % and 2.1–19 %, respectively. The CNN-CRNN-M5T model was a reliable tool for spatial and temporal predictions of WQI.

Item Type: Article
Uncontrolled Keywords: deep learning model; water resource management; water quality index; hybrid models;
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
T Technology > TD Environmental technology. Sanitary engineering
Divisions: Others > Non Sunway Academics
Sunway University > School of Engineering and Technology [formerly School of Science and Technology until 2020] > Dept. of Engineering
Depositing User: Ms Yong Yee Chan
Related URLs:
Date Deposited: 12 Jun 2024 00:57
Last Modified: 12 Jun 2024 00:57
URI: http://eprints.sunway.edu.my/id/eprint/2663

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