A New Method for Spectral Wavelength Selection Based on Multiple Linear Regression Combined with Ant Colony Optimization and Genetic Algorithm

Figure 5

(a) Spectrograms of the grain dataset; (b–h) frequencies of variables selected by different wavelength selection methods on the grain dataset. (b) SPA, (c) CARS, (d) ACO, (e) GA, (f) DE. (g) MLR-ACO, and (h) MLR-ACO-GA.

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