Research Article | OPEN ACCESS
An Artificial Neural Network with Stepwise Method for Modeling and Simulation of Oil Palm Productivity Based on Various Parameters in Sarawak
1Yousif Y. Hilal, 1W. Wan Ishak, 1Azmi Yahya and 2Zulfa H. Asha'ari
1Department of Biological and Agricultural Engineering, Faculty of Engineering
2Department of Environmental Sciences, Faculty of Environmental Studies, University Putra Malaysia, Malaysia
Research Journal of Applied Sciences, Engineering and Technology 2016 9:730-740
Received: July 5, 2016 | Accepted: August 18, 2016 | Published: November 05, 2016
Abstract
Aim of study to optimize the oil palm yield amount by studying parameters of land quality and climate, determines which of them is distinctly effective on oil palm yield amount, develops ANN model and simulation of Oil Palm production by using MATLAB software and Design Expert software, conducted an experiment to determine the effect of the number of neurons and the number of hidden layers in the network ANN is used. Across the optimization procedures obtained the best ANN architecture is 8 neurons in input layer -5 neurons in the hidden layer and -2 neuron in the output layer to obtain the best model of oil palm productivity prediction with a value of R 0.989 and MSE: 0.013, training Error 1.1%, testing error 1.9% and validation error 1.19%. The results of simulation and Independent Variable Importance show that the average accuracy percentage simulation is 0.9867% and MSE 0.0513%. The climatic changes that influenced the simulation are very high, where the relative humidity recorded on the proportion of impact of up to 100%, while the recorded rainy days, which is ranked second in influence was almost 90% and the effect of temperature was up to 70%. The influence of several climatic changes that decrease the quantity of rainfall, Rain days, Temperature rise, Evaporation and increasing Humidity, reduces the productivity of oil palm plantations for 2.35 tons/ha/year. This research concludes that ANN can be used to predict the production of palm oil based on the quality of land and local climate with very good results.
Keywords:
Artificial neural network, climate, FFB, land quality, oil palm, stepwise method,
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Competing interests
The authors have no competing interests.
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This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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