
Water quality early-warning model based on support vector machine optimized by rough set algorithm
LIU Shuang-yin, XU Long-qin, LI Dao-liang
Systems Engineering - Theory & Practice ›› 2015, Vol. 35 ›› Issue (6) : 1617-1624.
Water quality early-warning model based on support vector machine optimized by rough set algorithm
A new early warning model of water quality, combining rough set (RS) and support vector machine (SVM), is presented to improve the prediction precision affected by mass coupling factors, complex mode and information loss. Firstly, a core warning set based on 5 factors is obtained by using RS to deduct the redundant and disturbed properties from the initial set based on 14 factors. Consequently, the early warning model of water quality based on RS-SVM is built up by the core warning set. The experimental results show that our method improves the precision to more than 91% in any warning level by using the water quality data obtained from Yixing, Jiangsu province. Compared with the standard SVM and BP neural networks, the new model not only has effectiveness of calculation and prediction, but also provides warning results with practicality. This model demonstrates a new thought of early warning on intensive aquaculture water quality.
support vector machine / rough set / early-warning mode / attribute reduction {{custom_keyword}} /
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