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·¼Üø1979: ½ð±Ò+10, ²©Ñ§EPI+1 2017-03-17 07:38:23
·¼Üø1979: ½ð±Ò+10, ²©Ñ§EPI+1 2017-03-17 07:38:23
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CLASSIFICATION METHOD OF JAPONICA RICE GEOGRAPHICAL ORIGINS IN HEILONGJIANG BASED ON RAMAN SPECTROSCOPY ×÷Õß:Tian, FM (Tian Fang-Ming)[ 1,2 ] ; Yu, HY (Yu Hai-Ye)[ 1 ] ; Tan, F (Tan Feng)[ 2 ] ; Zhao, XY (Zhao Xiao-Yu)[ 2 ] OXIDATION COMMUNICATIONS ¾í: 39 ÆÚ: 4 Ò³: 3273-3283 ×Ó¼: 2 ³ö°æÄê: 2016 ²é¿´ÆÚ¿¯ÐÅÏ¢ ÕªÒª A rapid classification method for Japonica rice in Heilongjiang area was established based on the Raman spectroscopy combined with the principal component analysis (PCA) and support vector machine method (SVM) in this paper. There are great differences in the component of Japonica rice due to different varieties and geographical origins. Therefore, it is quite important for the Japonica rice production and trade to build a quick, accurate and effective classification method. 235 samples of Raman spectral lines ranged from 200 to 3400 per centimeter were collected with the Raman spectrometer from the Japonica rice produced in 3 origins of Heilongjiang area. After baseline correction and smooth processing for original Raman data, the Euclidean distance was used to remove the abnormal samples. 20 corresponding values of characteristic peaks were selected by the functional groups analysis for Japonica rice spectrum as the feature vectors. The 2D score chart of the first two principal components was obtained through PCA for 3 types spectrum data of Japonica rice in MATLAB, and a good clustering effect on the 3 different kinds of Japonica rice was shown. For a better classification, a further processing of normalisation needs to be done on the samples. The 2D scores chart for the first two principal components was made based on the normalised data through PCA. The 3 samples were divided into 3 zones and a better clustering effect than that of the former. The original spectrum data were replaced by the score vectors of the first 3 principal components. A C-SVC model based on radial basis kernel function (SVM RBF) was set up after the 100 samples of the three kinds of Japonica rice being trained and the unknown 103 samples being identified. It was shown that the whole accuracy of classification of SVM RBF kernel function for three kinds of Japonica rice is 92.23%, and a good effect was shown by using PCA with SVM method of Raman spectroscopy for Japonica rice classification and identification of different origins in Heilongjiang area. ¹Ø¼ü´Ê ×÷Õ߹ؼü´Ê:Raman spectroscopy; Japonica rice; principal component analysis (PCA); classifying; support vector machine (SVM); geographical origin KeyWords Plus:MASS-SPECTROMETRY; HUSKS ASH; COMPOSITES; IDENTIFICATION ×÷ÕßÐÅÏ¢ ͨѶ×÷ÕßµØÖ·: Yu, HY (ͨѶ×÷Õß) ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ Jilin Univ, Sch Biol & Agr Engn, Key Lab Bion Engn, Minist Educ, Changchun 130022, Peoples R China. µØÖ·: ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ [ 1 ] Jilin Univ, Sch Biol & Agr Engn, Key Lab Bion Engn, Minist Educ, Changchun 130022, Peoples R China ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ [ 2 ] Heilongjiang Bayi Agr Univ, Coll Informat Technol, Daqing 163319, Peoples R China µç×ÓÓʼþµØÖ·:haiyi2009a@163.com »ù½ð×ÊÖúÖÂл »ù½ð×ÊÖú»ú¹¹ ÊÚȨºÅ National High Technology Research and Developmental Program '863' 2013AA103005-04 National Science and Technology Support Program 2014BAD06B01 Heilongjiang Province Natural Science Foundation F201329 QC2015071 ²é¿´»ù½ð×ÊÖúÐÅÏ¢ ³ö°æÉÌ SCIBULCOM LTD, PO BOX 249, 1113 SOFIA, BULGARIA Àà±ð / ·ÖÀà Ñо¿·½Ïò:Chemistry Web of Science Àà±ð:Chemistry, Multidisciplinary ÎÄÏ×ÐÅÏ¢ ÎÄÏ×ÀàÐÍ:Article ÓïÖÖ:English Èë²ØºÅ: WOS:000392409200004 ISSN: 0209-4541 ÆÚ¿¯ÐÅÏ¢ Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports® ÆäËûÐÅÏ¢ IDS ºÅ: EI3RO Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 17 Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0 |

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