Nondestructive detection model of soluble solids content of an apple using visible/near-infrared spectroscopy combined with CARS and MPGA
Applied Optics, ISSN: 2155-3165, Vol: 60, Issue: 27, Page: 8400-8407
2021
- 8Citations
- 3Captures
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Article Description
Selecting the decisive characteristic variables is particularly important to analyze the soluble solids content (SSC) of an apple with visible/near-infrared spectroscopy (VIS-NIRS) technology. The multi-population genetic algorithm (MPGA) was applied to variable selection for the first time, to the best of our knowledge. A hybrid variable selection method combined competitive adaptive reweighted sampling (CARS) with MPGA (CARS-MPGA) was proposed. In this method, CARS was firstly used to shrink the variable space, and then the MPGA was used to further fine select the characteristic variables. Based on CARS-MPGA, a nondestructive quantitative detection SSC model of an apple was established and compared with the models established by different variable selection methods, such as successive projections algorithm, synergy interval partial least squares, and genetic algorithm. The experiments showed that the CARS-MPGA model was the best. The number of modeling variables was only 64, and the determination coefficients, root mean squared error, and residual predictive deviation for the prediction set were 0.853, 0.443, and 2.612, respectively. The results demonstrated that the CARS-MPGA is a reliable variable selection method and can be used for fast nondestructive detection SSC of an apple.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85115219636&origin=inward; http://dx.doi.org/10.1364/ao.439291; http://www.ncbi.nlm.nih.gov/pubmed/34612939; https://opg.optica.org/abstract.cfm?URI=ao-60-27-8400; https://dx.doi.org/10.1364/ao.439291; https://opg.optica.org/ao/abstract.cfm?uri=ao-60-27-8400
Optica Publishing Group
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