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근적외 스펙트럼을 이용한 최적 다중선형희귀모델을 위한 알고리듬Algorithm for finding the best multiple linear regression models using near infrared spectra

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Algorithm for finding the best multiple linear regression models using near infrared spectra
Authors
조정환
Issue Date
Oct-2004
Publisher
숙명여자대학교 약학연구소
Citation
약학논문집-숙명여자대학교, v.21, no. , pp. 42 - 48
Journal Title
약학논문집-숙명여자대학교
Volume
21
Start Page
42
End Page
48
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/17584
ISSN
1225-3723
Abstract
Near infrared(NIR) spectral data have been used for the noninvasive analysis of various biological samples. Nonetheless, absorption bands of NIR region are overlapped extensively. Even though 1st or 2nd derivative data are used, it is very difficult to select the proper wavelengths of spectral data, which give the best multiple linear regression(MLR) models for the analysis of constituents of biological samples. To find the best MLR models, all-possible combinations of available variables(in this case, wavelengths of spectral data) were derived by in-house programs written in MATLAB codes. All of the extensively generated regression models were compared in terms of standard error of calibration(SEC), R² and standard error of prediction(SEP) to find the best regression models. For the test of the developed program, aqueous solutions of BSA(bovine serum albumin) were prepared and analyzed. As a result, the best MLR models can be found using 1st and 2nd derivative spectra and SEP criteria.
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