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| 利用THz时域谱技术和支持向量机回归法快速测定食用油的过氧化值和酸价 | |
| 引用本文： | 李向军,陈裕泉,李九生.利用THz时域谱技术和支持向量机回归法快速测定食用油的过氧化值和酸价[J].中国粮油学报,2010,2012(2). |
| 作者姓名： | 李向军 陈裕泉 李九生 |
| 作者单位： | 1. 浙江大学生物医学工程与仪器科学学院,杭州,310027;中国计量学院太赫兹应用技术研究所,杭州,310018 2. 浙江大学生物医学工程与仪器科学学院,杭州,310027 3. 中国计量学院太赫兹应用技术研究所,杭州,310018 |
| 基金项目： | 浙江省科技厅面上项目"食用油品质的太赫兹波快速检测仪开发与研制" |
| 摘 要： | 采用THz时域谱技术得到30个食用油样本的吸收谱,随机分为训练集和预测集,利用支持向量回归算法和标准方法测得的参考含量在训练集上建立了食用油酸价和过氧化值的预测模型,并应用此模型对预测集样本进行预测。结果表明该模型对食用油预测的相关系数较传统PLS方法对比更为精确。 |
| 关 键 词： | 酸价 过氧化值 太赫兹时域谱 支持向量回归 偏最小二乘回归 |
Rapid Measurement of Edible Oil's Acid Number and Peroxide Value by Terahertz Time-Domain Spectroscopy and Support Vector Regression |
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| Li Xiangjun,Chen Yu Quan Li Jiusheng.Rapid Measurement of Edible Oil's Acid Number and Peroxide Value by Terahertz Time-Domain Spectroscopy and Support Vector Regression[J].Journal of the Chinese Cereals and Oils Association,2010,2012(2). | |
| Authors: | Li Xiangjun Chen Yu Quan Li Jiusheng |
| Affiliation: | Li Xiangjun1,2 Chen Yu Quan1 Li Jiusheng2(College of Biomedical Engineering , Instrument Science of Zhejiang University1,Hangzhou 310027)(Insititute of THz Technology , Application of China Jiliang University2,Hangzhou 310018) |
| Abstract: | The terahertz band Absorption spectrums of edible oil were obtained with 30 samples by terahertz time-domain spectroscopy(THz-TDS) technology.With support vector regression algorithm and reference values of oil's acid number and peroxide measured by standard methods,the samples are randomly divided into training set and testing set to build a regression model to predict those acid numbers and peroxides.Results show that the models have significant advantage compared with the traditional method of PLS. |
| Keywords: | acid number peroxide value terahertz time-domain spectroscopy (THz-TDS) support vector regression algorithm PLS |
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