Estimating longitudinal dispersion coefficient in natural streams using empirical models and machine learning algorithms

K Kargar, S Samadianfard, J Parsa… - Engineering …, 2020 - Taylor & Francis
The longitudinal dispersion coefficient (LDC) plays an important role in modeling the
transport of pollutants and sediment in natural rivers. As a result of transportation processes …

Prediction of side weir discharge coefficient by support vector machine technique

HM Azamathulla, AH Haghiabi… - Water Science and …, 2016 - iwaponline.com
Side weirs have many possible applications in the field of hydraulic engineering. They are
also considered an important structure in hydro systems. In this study, the support vector …

Novel forecasting models for immediate-short-term to long-term influent flow prediction by combining ANFIS and grey wolf optimization

M Dehghani, A Seifi, H Riahi-Madvar - Journal of Hydrology, 2019 - Elsevier
Accurate influent flow forecasting plays a significant role in management, operation,
scheduling and utilization of the sewage treatment plants. In design and operate such …

How reliable are ANN, ANFIS, and SVM techniques for predicting longitudinal dispersion coefficient in natural rivers?

R Noori, Z Deng, A Kiaghadi… - Journal of Hydraulic …, 2016 - ascelibrary.org
Determination of longitudinal dispersion coefficient (LDC) using artificial intelligence (AI)
techniques can improve environmental management strategies for river systems. However …

Evaluation of neuro-fuzzy GMDH-based particle swarm optimization to predict longitudinal dispersion coefficient in rivers

M Najafzadeh, A Tafarojnoruz - Environmental Earth Sciences, 2016 - Springer
In the present research, neuro-fuzzy-based group method of data handling (NF-GMDH) has
been applied to evaluate the longitudinal dispersion coefficient in rivers. The NF-GMDH …

Support vector machine approach for longitudinal dispersion coefficients in natural streams

HM Azamathulla, FC Wu - Applied Soft Computing, 2011 - Elsevier
This paper presents the support vector machine approach to predict the longitudinal
dispersion coefficients in natural rivers. Collected published data from the literature for the …

Estimating daily reference evapotranspiration using hybrid gamma test-least square support vector machine, gamma test-ANN, and gamma test-ANFIS models in an …

A Seifi, H Riahi - Journal of Water and Climate Change, 2020 - iwaponline.com
In this study, a hybrid model of least square support vector machine-gamma test (LSSVM-
GT) is proposed for estimating daily ETo under arid conditions of Zahedan station, Iran …

Predicting longitudinal dispersion coefficient in natural streams using M5′ model tree

A Etemad-Shahidi, M Taghipour - Journal of hydraulic engineering, 2012 - ascelibrary.org
The longitudinal dispersion coefficient is a key parameter in determining the distribution of
pollution concentration, especially in temporally time-varying source cases after full cross …

The prediction of longitudinal dispersion coefficient in natural streams using LS-SVM and ANFIS optimized by Harris hawk optimization algorithm

NA Azar, SG Milan, Z Kayhomayoon - Journal of Contaminant Hydrology, 2021 - Elsevier
Accurate calculation of the longitudinal dispersion coefficient (K x) of pollution is essential in
modeling river pollution status. Various equations are presented to calculate the K x using …

Genetic programming for predicting longitudinal dispersion coefficients in streams

HM Azamathulla, AA Ghani - Water resources management, 2011 - Springer
This paper presents a genetic programming (GP) approach to predict the longitudinal
dispersion coefficients in natural streams. Published data were compiled from the literature …