JADE-SVM mid-infrared food adulteration discrimination model based on Bayesian optimization

doi:10.3969/j.issn.1000-1565.2024.02.004

Abstract

Abstract: Independent component analysis(ICA)combined with support vector machine(SVM)model was carried out to identify food adulteration. Mid-infrared spectra of edible vegetable oil(certified oil, adulterate oil and fried oil)as well as milk powder(pure milk powder and melamine-containing milk powder)were obtained by Fourier transform infrared spectroscopy(FTIR). Firstly, the effects of different spectral preprocessing methods on the established model were investigated, and the normalization combined with the moving smoothing method was selected for the preprocessing of the spectra. Then the joint approximate diagonalization of eigenmatrices(JADE)method was used to extract the spectral feature- DOI:10.3969/j.issn.1000-1565.2024.02.004基于贝叶斯优化的JADE-SVM中红外食品掺伪判别模型张孟莎¹,田璐¹,李艳坤¹,沈晓芳²(1.华北电力大学环境科学与工程系,河北保定 071003;2.江南大学食品学院,江苏无锡 214122)摘要:开展了独立成分分析(independent component analysis,ICA)联合支持向量机(support vector machine,SVM)模型对食品掺伪的判别.通过傅里叶变换红外光谱仪获得食用植物油(正品油、掺伪油和炸货油)以及奶粉(纯奶粉和掺三聚氰胺奶粉)的中红外光谱,首先,探究不同的光谱预处理方法对所建立模型的影响,经考察选取归一化结合移动平滑对光谱进行预处理;然后采用特征矩阵联合近似对角化(joint approximate diagonalization of eigenmatrices,JADE)方法提取光谱特征信息,其结果优于主成分分析对特征信息的提取效果;通过Kennard-Stone算法划分训练集和测试集,利用贝叶斯优化(Bayesian optimization,BO)对SVM模型参数进行优化.经考察,所构建的JADE-BO-SVM模型对掺伪食品的识别准确度达到100%,该法可为食品掺伪的高效、准确鉴别提供新的途径和思路.关键词:光谱学;中红外光谱;模式识别;参数优化;掺伪判别中图分类号:TB96 文献标志码:A 文章编号:1000-1565(2024)02-0139-07JADE-SVM mid-infrared food adulteration discrimination model based on Bayesian optimizationZHANG Mengsha¹, TIAN Lu¹, LI Yankun¹, SHEN Xiaofang²(1. Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China;2. College of Food Science and Technology, Jiangnan University, Wuxi 214122, China)Abstract: Independent component analysis(ICA)combined with support vector machine(SVM)model was carried out to identify food adulteration. Mid-infrared spectra of edible vegetable oil(certified oil, adulterate oil and fried oil)as well as milk powder(pure milk powder and melamine-containing milk powder)were obtained by Fourier transform infrared spectroscopy(FTIR). Firstly, the effects of different spectral preprocessing methods on the established model were investigated, and the normalization combined with the moving smoothing method was selected for the preprocessing of the spectra. Then the joint approximate diagonalization of eigenmatrices(JADE)method was used to extract the spectral feature- 收稿日期:2023-09-22;修回日期:2023-10-27 基金项目:国创计划资助项目(S202310079127); 中央高校基本科研业务费资助项目(2017MS135) 第一作者:张孟莎(1998—),女,华北电力大学在读硕士研究生,主要从事基于盲源分离模型展开光谱的定性和定量分析.E-mail:zhangmengsha125@126.com 通信作者:李艳坤(1977—),女,华北电力大学副教授,主要从事化学计量学、环境分析化学方面的研究.E-mail:liyankun_ncepu@foxmail.com第2期张孟莎等:基于贝叶斯优化的JADE-SVM中红外食品掺伪判别模型information, and the results were better than those of the principal component analysis for feature information extraction. The training and testing sets were divided by the Kennard-Stone algorithm, and Bayesian optimization(BO)was used to optimize the SVM model parameters. Upon examination, the constructed JADE-BO-SVM model achieved 100% accuracy in identifying adulterated food. The proposed method can provide new way and new idea for the efficient and accurate identification of food adulteration.

Key words: spectroscopy, mid-infrared spectroscopy, pattern recognition, parameter optimization, adulteration discrimination

CLC Number:

TB96

ZHANG Mengsha, TIAN Lu, LI Yankun, SHEN Xiaofang. JADE-SVM mid-infrared food adulteration discrimination model based on Bayesian optimization[J]. Journal of Hebei University(Natural Science Edition), 2024, 44(2): 139-145.

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