https://scholars.lib.ntu.edu.tw/handle/123456789/573132
標題: | Optimal combination of band-pass filters for theanine content prediction using near-infrared spectroscopy | 作者: | Ong P SUMING CHEN Tsai C.-Y Chuang Y.-K. |
關鍵字: | Bandpass filters; Forecasting; Gaussian distribution; Gaussian noise (electronic); Infrared devices; Near infrared spectroscopy; Speed control; Support vector machines; Band-pass filters; Gaussian process regression; Infrared: spectroscopy; Multiple linear regressions; Near Infrared; Near-infrared; Optimal combination; Spectral acquisition; Support vector machine regressions; Theanine; Linear regression | 公開日期: | 2021 | 卷: | 115 | 來源出版物: | Infrared Physics and Technology | 摘要: | The commonly used spectral variable selection methods in near-infrared (NIR) spectroscopy were more theoretical and difficult to put into practice, due to a large number of optical filters with extremely narrow bandwidth at the desired wavelength was required for the spectral acquisition. In this study, a method of optimally selecting a set of the band-pass filter (BPF) to reduce the dimensionality of the spectral data was proposed and subsequently applied to the determination of theanine content in oolong tea. By utilizing 4 BPFs, the developed multiple linear regression, support vector regression and Gaussian process regression models produced R-squared values of 0.7971, 0.9036 and 0.9080, respectively, for prediction, indicating the beneficial potential of the proposed method for accurate prediction of the analytes with the lower cost of spectral acquisition in real practice. ? 2021 Elsevier B.V. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102357959&doi=10.1016%2fj.infrared.2021.103701&partnerID=40&md5=5745973b927d93ea673c2f8d10648ecd https://scholars.lib.ntu.edu.tw/handle/123456789/573132 |
ISSN: | 13504495 | DOI: | 10.1016/j.infrared.2021.103701 |
顯示於: | 生物機電工程學系 |
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