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Neural Computing and Applications

, Volume 31, Issue 3, pp 827–837 | Cite as

Hybrid soft computing approach for determining water quality indicator: Euphrates River

  • Jing Li
  • Husam Ali Abdulmohsin
  • Samer Sami Hasan
  • Li KaimingEmail author
  • Belal Al-Khateeb
  • Mazen Ismaeel Ghareb
  • Muamer N. Mohammed
Original Article

Abstract

Recent approaches toward solving the regression problems which are characterized by dynamic and nonlinear pattern such as machine learning modeling (including artificial intelligence (AI) approaches) have proven to be useful and successful tools for prediction. Approaches that integrate predictive model with optimization algorithm such as hybrid soft computing have resulted in the enhancement of the accuracy and preciseness of models during problem predictions. In this research, the implementation of hybrid evolutionary model based on integrated support vector regression (SVR) with firefly algorithm (FFA) was investigated for water quality indicator prediction. The monthly water quality indicator (WQI) that was used to test the hybrid model over a period of 10 years belongs to the Euphrates River, Iraq. The use of the WQI as an application for this research was stimulated based on the fact that WQI is usually calculated using a manual formulation which takes much time, efforts and occasionally may be associated with errors that were not intended during the subindex calculations. The parameters considered during the formulation of the prediction model were water quality parameters as input and WQI as output. The SVR model was used to verify the accuracy of the inspected SVR–FFA model. Different statistical metrics such as best fit of goodness and absolute error measures were used to evaluate the model. The performance of the hybrid model in recognizing the dynamic and nonlinear pattern characteristics was high and remarkable compared to the pure model. The SVR–FFA model was also demonstrated to be a good and robust soft computing technique toward the prediction of WQI. The proposed model enhanced the absolute error measurements (e.g., root mean square error and mean absolute error) over the SVR-based model by 42 and 58%, respectively.

Keywords

Support vector regression Firefly algorithm Regression problem River water quality 

Notes

Acknowledgements

This work is supported by National Natural Science foundation of China (41661014), the university scientific research project of Gansu (2016A-071) and the Urban Development Institute scientific research project of Gansu (2013-GSCFY-RW30). These supports are appreciated. Also, the authors would like to express their gratitude and appreciation to the reviewers.

Compliance with ethical standards

Conflict of interest

Here is a declaration stated by all the authors that there is no conflict of interests about publishing this article.

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Copyright information

© The Natural Computing Applications Forum 2017

Authors and Affiliations

  • Jing Li
    • 1
    • 2
  • Husam Ali Abdulmohsin
    • 3
  • Samer Sami Hasan
    • 3
  • Li Kaiming
    • 4
    Email author
  • Belal Al-Khateeb
    • 5
  • Mazen Ismaeel Ghareb
    • 6
    • 7
  • Muamer N. Mohammed
    • 8
    • 9
  1. 1.Business SchoolLanzhou City UniversityLanzhouChina
  2. 2.College of Earth and Environmental ScienceLanzhou City UniversityLanzhouChina
  3. 3.Computer Science Department, College of ScienceUniversity of BaghdadBaghdadIraq
  4. 4.Geography and Planning SchoolLanzhou City UniversityLanzhouChina
  5. 5.Computer Science Department, College of Computer Science and Information TechnologyUniversity of AnbarRamadiIraq
  6. 6.Department of computer science, College of Science and TechnologyUniversity of Human DevelopmentSulaymaniyahIraq
  7. 7.Department of Informatic, School of Computing and EngineeringUniversity of HuddersfieldHuddersfieldEngland, UK
  8. 8.Faculty of Computer Systems and Software EngineeringUniversity Malaysia PahangKuantanMalaysia
  9. 9.IBM Center of ExcellenceUniversity Malaysia PahangKuantanMalaysia

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