| 光谱学与光谱分析 |
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| Determination of Wine Varieties with NIR and Fusion of Multiple Classifiers |
| LI Kai1, LI Xue-ying1, LUAN Li-li1, HU Wen-yan1, WANG Yu-heng1, LI Jing-ming2*, LI Jun-hui1, LAO Cai-lian1, ZHAO Long-lian1* |
| 1. College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China2. College of Food Science & Nutrition Engineering, China Agricultural University, Beijing 100083, China |
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Abstract The conventional qualitative analysis of near infrared spectroscopy (NIR) commonly uses one single classification model. This paper focused on the fusion of multiple classifiers based on different single classifiers by using the fused classifier to determine different varieties of red-wines. NIR spectra of 170 red-wine samples were collected by using Fourier transform near-infrared spectrometer. Red-wine classification models were established respectively, based on PLS-DA, SVM, Fisher and AdaBoost. Then these models were selected to obtain some different base classifiers according to Diversity Measure Feature Selective (DMFS). The highest accuracy rate of determining different varieties of red-wine test samples of four single base classifiers was up to 88.24%, and at the same time the lowest discriminant accuracy rate was 81.18%. At last, we got the fused classifier, which combined four base classifiers with weighted voting principle, and determined its test set again by using the fused classifier. The final classification accuracy rate for red-wine varieties increased to 92.94%, In contrast with one single classifier, the lowest misjudged number of fused classifiers decreased from 9 to 6.These results suggested that the performance of fused classifier is superior to one single classifier. It is feasible to use fused classifier combined with near infrared spectroscopy to determine different varieties of red-wines.
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Received: 2015-09-03
Accepted: 2016-01-14
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Corresponding Authors:
ZHAO Long-lian
E-mail: zhaolonglian@aliyun.com; lyma@cau.edu.cn
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