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In this paper, a hybrid approach, which combines back propagation neural network (BPNN), generalized regression neural network (GRNN) and particle swarm optimization (PSO), is proposed to determine internal qualities in apples by using NIR diffuse reflectance spectra in the wavelength range of 400-1022 nm. The essence of the hybrid approach incorporates six phases. Firstly, the original spectral data...
Peach is one of the most important commodities in the global fresh product market. With the development of people's living standard, consumers pay more attention to the internal quality of fruits than the appearance quality of fruits. The requirement of nondestructive analysis could be satisfied by near infrared (NIR) spectroscopy with appropriate data analysis methods. In this paper, we measured...
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