Multi-Structure KELM with Attention Fusion Strategy for Hyperspectral Image Classification
- Authors
- Sun, L.; Fang, Y.; Chen, Y.; Huang, W.; Wu, Z.; Jeon, B.
- Issue Date
- 2022
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- attention mechanisms; Deep learning; Electronic mail; Extreme learning machines; Feature extraction; hyperspectral image classification; Hyperspectral imaging; Kernel; Kernel extreme learning machine (KELM); multi-feature; multi-scale; Training
- Citation
- IEEE Transactions on Geoscience and Remote Sensing, v.60, pp 1 - 1
- Pages
- 1
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE Transactions on Geoscience and Remote Sensing
- Volume
- 60
- Start Page
- 1
- End Page
- 1
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/100339
- DOI
- 10.1109/TGRS.2022.3208165
- ISSN
- 0196-2892
1558-0644
- Abstract
- Hyperspectral image (HSI) classification refers to accurately corresponding each pixel in an HSI to a land-cover label. Recently, the successful application of multi-scale and multi-feature methods has greatly improved the performance of HSI classification due to their enhanced utilization of the available spectral-spatial information. However, as the number of scales and the number of features increases, it becomes more difficult to achieve an optimal degree of fusion for multiple classifiers (e.g., Kernel Extreme Learning Machine, KELM). On the other hand, a limited sample size of the HSI may cause overfitting problems, which seriously affects the classification accuracy. Therefore, in this paper, a novel Multi-Structure KELM with Attention Fusion Strategy (MSAF-KELM) is proposed to achieve accurate fusion of multiple classifiers for effective HSI classification with ultra-small sample rates. First, a multi-structure network is built that combines multiple scales and multiple features to extract abundant spectral-spatial information. Second, a fast and efficient KELM is employed to enable rapid classification. Finally, a Weighted Self Attention Fusion Strategy (WSAFS) is introduced, which combines the output weights of each KELM sub-branch and the self-attention mechanism to achieve an efficient fusion result on multi-structure networks. We conducted experiments on four types of HSI datasets with different evaluation methods and compared them with several classical and state-of-the-art methods, which demonstrate the excellent performance of our method on ultra-small sample rates. The code is available at https://github.com/Fang666666/MSAF-KELM for reproducibility. IEEE
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Information and Communication Engineering > School of Electronic and Electrical Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/100339)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.