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Effects of Data Normalization on Water Quality Model in a Recirculatory Aquaculture System Using Artificial Neural Network

Taliha A. Folorunso*, Raisa Begum Gul**, Jonathan G. Kolo ***, Suleiman O. E. Sadiku****, Abdullahi M. Orire *****

*Academic Staff, Department of Mechatronics Engineering, Federal University of Technology, Minna, Nigeria.

**Professor, Department of Mechatronics Engineering, Federal University of Technology, Minna, Nigeria.

***Associate Professor, Department of Electrical and Electronics Engineering, Federal University of Technology, Minna, Nigeria.

****Professor, Department of Water Resources, Aquaculture, and Fisheries Technology, Federal University of Technology, Minna, Nigeria.

*****Associate Professor, Department of Water Resources, Aquaculture, and Fisheries Technology, Federal University of Technology, Minna, Nigeria.

Periodicity:September - November'2018
DOI : https://doi.org/10.26634/jpr.5.3.15678

Abstract

Water Quality remains one of the most important factor that influences the aquaculture system as it effects can make or mar the state of organisms as well as the environment. Furthermore, the use of Artificial intelligence especially the Artificial Neural Network (ANN) has greatly improved the forecasting capability of water quality due to better solutions produced as compared to other approaches. The performance of these AI techniques lies in the quality of dataset used for its implementation, which is in turn a function of the preprocessing (Normalization) techniques performed on them. In this paper, the effect of different normalization techniques namely; the Min-Max, Decimal Point, Unitary and the Z-Score were investigated on the prediction of the water quality of the Tank Cultured Re-circulatory Aquaculture System at the WAFT Laboratory, using the ANN. The Water Quality Index was based on the prediction of the Dissolved Oxygen (DO) as a function of the Temperature, Alkalinity, PH and conductivity. The performance of the techniques on the ANN was evaluated using the Mean Square Error (MSE), Nash-Sutcliffe Efficiency coefficient (NSE). The comparison of the evaluation of the various techniques depicts that all the approaches are applicable in the prediction of the DO. The Decimal point technique has the least MSE as compared to others, while the Min-Max technique has better performance with respect to the NSE.

Keywords

Aquaculture System, Artificial Neural Network, Dissolved Oxygen, Prediction, Water Quality Index.

How to Cite this Article?

Folorunso, T. A., Aibinu, A. M., Kolo, J. G.,Sadiku, S. O. E., and Orire, A. M (2018). Effects of Data Normalization on Water Quality Model in a Recirculatory Aquaculture System Using Artificial Neural Network. i-manager’s Journal on Pattern Recognition, 5(3), 21-28. https://doi.org/10.26634/jpr.5.3.15678

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