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• W4225515009 abstract "High spectral dimensionality of hyperspectral image (HSI) has brought great redundancy for data processing. Band selection (BS), as one of the most commonly used dimension reduction (DR) techniques, attempts to remove the redundant spectral bands, while maintaining good classification or detection rate for later applications. Gray wolf optimizer (GWO) algorithm is a meta-heuristic algorithm, and it is used for HSI BS. However, the convergence factor of the basic GWO is linearly decreased, leading to a slower convergence speed and increasing the probability of falling into local optimality. This article proposes a new hybrid gray wolf optimizer (HGWO) algorithm for HSI BS, which uses adaptive decreasing convergence factor instead of linear convergence factor to improve GWO convergence rate and combines category separability for initialization to avoid local optimality. Five nonlinear functions are used to test the convergence of the proposed HGWO algorithm, compared with the state-of-the-art optimization algorithms. Finally, the experimentations are performed on three widely used real hyperspectral datasets for HSI classification, and the experimental results show that band subsets selected by the proposed HGWO algorithm can obtain better classification accuracy compared with other global optimization algorithms." @default.
• W4225515009 created "2022-05-05" @default.
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• W4225515009 date "2022-01-01" @default.
• W4225515009 modified "2023-09-30" @default.
• W4225515009 title "A Hybrid Gray Wolf Optimizer for Hyperspectral Image Band Selection" @default.
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• W4225515009 doi "https://doi.org/10.1109/tgrs.2022.3167888" @default.
• W4225515009 hasPublicationYear "2022" @default.
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