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Research of nitrate concentration prediction based on GA
Wang, Xueji1,2; Hu, Bingliang1; Yu, Tao1; Liu, Qingsong1,2; Li, Hongbo1,2; Fan, Yao1
2018
会议名称International Symposium on Optoelectronic Technology and Application 2018: Ocean Optics and Information Technology, OTA 2018
会议录名称Ocean Optics and Information Technology
卷号10844
会议日期2018-05-22
会议地点Beijing, China
出版者SPIE
产权排序1
摘要High concentration of nitrate will cause many problems, such as water eutrophication and compromise of human beings' health. A fast and stable approach was applied to predict nitrate concentration in solutions using the dual optical active correction continuous spectrum analyzer designed by our research group. Firstly, standard normal variate (SNV) was used to pretreat the spectral data. Then characteristic wavelengths of spectral curve were selected by using successive projections algorithm (SPA) and genetic algorithm (GA) respectively. Finally, partial least-squares regression (PLSR) was applied to build the spectral prediction model to predict nitrate concentration, and coefficient of determination (R2) and root mean square error of prediction (RMSEP) were introduced as the evaluation indicators of prediction models. For SNV-GA-PLS model, R2=0.9966 and RMSEP=0.1712, which outperformed than SNV-UVE-SPA-PLS model (R2=0.9896, RMSEP=0.3952). It demonstrated that he model which selects spectral characteristic wavelengths by GA can decrease the complexity of prediction model building and ensure the accuracy as well. Hence, SNV-GA-PLS model can be used to predict nitrate concentration in water with quick and steady performance. © 2018 SPIE.
作者部门光谱成像技术实验室
DOI10.1117/12.2504459
收录类别EI
ISBN号9781510623422
语种英语
ISSN号0277786X;1996768X
EI入藏号20185206315957
引用统计
文献类型会议论文
条目标识符http://ir.opt.ac.cn/handle/181661/31146
专题光谱成像技术实验室
作者单位1.Laboratory of Spectral Imaging Technique, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式
GB/T 7714
Wang, Xueji,Hu, Bingliang,Yu, Tao,et al. Research of nitrate concentration prediction based on GA[C]:SPIE,2018.
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