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BiPLS结合模拟退火算法的近红外光谱特征波长选择研究
引用本文:石吉勇,邹小波,赵杰文,毛罕平.BiPLS结合模拟退火算法的近红外光谱特征波长选择研究[J].红外与毫米波学报,2011,30(5):458-462.
作者姓名:石吉勇  邹小波  赵杰文  毛罕平
作者单位:1. 江苏大学食品与生物工程学院,江苏镇江,212013
2. 江苏大学现代农业装备与技术重点实验室,江苏镇江,212013
基金项目:国家高技术研究发展计划(863计划),国家自然科学基金项目(面上项目,重点项目,重大项目)
摘    要:为了简化近红外光谱模型,提高对草莓可溶性固形物含量的预测精度,将反向偏最小二乘法(BiPLS)与模拟退火算法(Simulated annealing algorithm,SAA)相结合优选特征波长,建立了多元线性回归可溶性固形物光谱模型.原始光谱经过预处理后,用反向偏最小二乘法优选出4个特征子区间(分别为第8、13、1...

关 键 词:近红外光谱  模拟退火算法  反向偏最小二乘法  波长选择
收稿时间:2010/3/10 0:00:00
修稿时间:2010/6/15 0:00:00

Selection of wavelength for strawberry NIR spectroscopy based on BiPLS combined with SAA
SHI Ji-Yong,ZOU Xiao-Bo,ZHAO Jie-Wen and MAO Han-Ping.Selection of wavelength for strawberry NIR spectroscopy based on BiPLS combined with SAA[J].Journal of Infrared and Millimeter Waves,2011,30(5):458-462.
Authors:SHI Ji-Yong  ZOU Xiao-Bo  ZHAO Jie-Wen and MAO Han-Ping
Affiliation:College of Food and Biological Engineering, Jiangsu University,College of Food and Biological Engineering, Jiangsu University,College of Food and Biological Engineering, Jiangsu University and Key Laboratory of Modern Agricultural Equipment and Technology, Jiangsu University
Abstract:To improve and simplify the NIR prediction model of the soluble solid content (SSC) of strawberry, backward interval partial least squares (BiPLS) and simulated annealing algorithm (SAA) were combined to select the efficient wavelengths. The strawberry spectra were divided into 21 intervals, among which 4 subsets, i.e. No.8, 13, 16 and 17 were selected by BiPLS. Then SAA was used to select variables in these informative regions, which were used for regression variables of MLR model. Finally, 7565 cm-1, 7706 cm-1, 8289 cm-1, 8489 cm-1, 8499 cm-1, 8724 cm-1 and 8807 cm-1 were used to build a MLR model. The MLR model performs well with root mean standard error of prediction (RMSEP) of 0.428 for SSC, which out performs models using PLS and BiPLS. This work proved that the BiPLS-SAA could determine optimal variables in NIR spectra and improve the accuracy of model.
Keywords:NIR spectroscopy  Backward interval PLS (iPLS)  Simulated annealing algorithm (SAA)  Wavelength selection  strawberry
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