Abstract
Vibrational spectroscopy can be used for rapid nutrient assessment of horticultural produce as a means of quality control. Most commonly, spectral data are calibrated against chemical reference data, which are acquired through resource-intensive analytical methods, using partial least squares regression (PLSR). Recently, genetic algorithms (GAs) have been applied to assist PLSR to construct high-performing models through feature selection and latent variable selection. The current approach relies on manually pre-processed data, which requires human expertise and produces inherent biases. To address this limitation, this paper aims to develop a new GA method for automatically selecting the most appropriate pre-processing techniques for specific tasks to bypass manual pre-processing. The results for infrared spectroscopy show the potential of this approach in out-performing manual pre-processing, while the Raman spectroscopy results are competitive, which demonstrates the utility of the approach in terms of saving time and resources.
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Robinson, D., Chen, Q., Xue, B., Killeen, D., Gordon, K., Zhang, M. (2022). A New Genetic Algorithm for Automated Spectral Pre-processing in Nutrient Assessment. In: Jiménez Laredo, J.L., Hidalgo, J.I., Babaagba, K.O. (eds) Applications of Evolutionary Computation. EvoApplications 2022. Lecture Notes in Computer Science, vol 13224. Springer, Cham. https://doi.org/10.1007/978-3-031-02462-7_19
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