2022
DOI: 10.2166/wcc.2022.078
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A novel hybrid framework based on the ANFIS, discrete wavelet transform, and optimization algorithm for the estimation of water quality parameters

Abstract: Improving the performance of machine learning (ML) algorithms is essential for accurately estimating water quality parameters (WQPs). For the first time, a novel hybrid framework, namely the adaptive neural fuzzy inference system–discrete wavelet transform–gradient-based optimization (ANFIS–DWT–GBO), for estimation of electrical conductivity (EC) and total dissolved solids (TDS) is used. Before estimating WQPs, the performance of the ANFIS–DWT–GBO is proven by several benchmark data sets. In addition, three be… Show more

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Cited by 6 publications
(2 citation statements)
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“…It is worth mentioning that the existing research recognizes the critical role played by the DWT in water-related (e.g., meteorological, hydrological, etc.) time series due to the discrete feature of the corresponding time series [59]. In addition, the DWT is more efficient compared to the CWT since it limits the production of excessively redundant data which is a consequence of computing all wavelet coefficients in any possible scale.…”
Section: Discrete Wavelet Transformmentioning
confidence: 99%
“…It is worth mentioning that the existing research recognizes the critical role played by the DWT in water-related (e.g., meteorological, hydrological, etc.) time series due to the discrete feature of the corresponding time series [59]. In addition, the DWT is more efficient compared to the CWT since it limits the production of excessively redundant data which is a consequence of computing all wavelet coefficients in any possible scale.…”
Section: Discrete Wavelet Transformmentioning
confidence: 99%
“…As a result, even for a highly nonlinear system, ANFIS is expected to generate very accurate predictions. It has been widely used in predicting water quality parameters in rivers (Kisi and Zounemat-Kermani 2014 ; Kadkhodazadeh and Farzin 2022 ; Almadani and Kheimi 2023 ). In line with the objective of this study, specifically, Table 1 summarizes the applications of ANFIS models in modeling BOD in rivers.…”
Section: Introductionmentioning
confidence: 99%