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Rapid Identification of Waste Cooking Oil with Near Infrared Spectroscopy Based on Support Vector Machine

Abstract : The qualitative model for rapidly discriminating the waste oil and four normal edible vegetable oils is developed using near infrared spectroscopy combined with support vector machine (SVM). Principal component analysis (PCA) has been carried out on the base of the combination of spectral pretreatment of vector normalization, first derivation and nine point smoothing, and seven principal components are selected. The radial basis function (RBF) is used as the kernel function; the penalty parameter C and kernel function parameter γ are optimized by K-fold Cross Validation (K-CV), Genetic Algorithm (GA), Particle Swarm Optimization (PSO), respectively. The result shows that the best classification model is developed by GA optimization when the parameters C = 911.33, γ= 2.91. The recognition rate of the model for 208 samples in training set and 85 samples in prediction set is 100% and 90.59%, respectively. By comparison with K-means and Linear Discriminant Analysis (LDA), the result indicates that the SVM recognition rate is higher, well generalization, can quickly and accurately identify the waste cooking oil and normal edible vegetable oils.
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Xiong Shen, Xiao Zheng, Zhiqiang Song, Dongping He, Peishi Qi. Rapid Identification of Waste Cooking Oil with Near Infrared Spectroscopy Based on Support Vector Machine. 6th Computer and Computing Technologies in Agriculture (CCTA), Oct 2012, Zhangjiajie, China. pp.11-18, ⟨10.1007/978-3-642-36124-1_2⟩. ⟨hal-01348075⟩

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