Salient Dual Activations Aggregation for Ground-Based Cloud Classification in Weather Station Networks
Since appearances of clouds are always changeable, ground-based cloud classification is still in urgent need of development in weather station networks. Many existing methods resort to convolutional neural networks to improve the classification accuracy. However, these methods just carry out the fea...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8487026/ |
| _version_ | 1818855252953137152 |
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| author | Zhong Zhang Donghong Li Shuang Liu |
| author_facet | Zhong Zhang Donghong Li Shuang Liu |
| author_sort | Zhong Zhang |
| collection | DOAJ |
| description | Since appearances of clouds are always changeable, ground-based cloud classification is still in urgent need of development in weather station networks. Many existing methods resort to convolutional neural networks to improve the classification accuracy. However, these methods just carry out the feature extraction from one convolutional layer, hence making it difficult to obtain complete information of ground-based cloud images. To address this limitation, in this paper, we propose a novel method named salient dual activations aggregation (SDA<sup>2</sup>) to extract ground-based cloud features from different convolutional layers, which could learn the structural, textural, and high-level semantic information for ground-based cloud representation, simultaneously. Specifically, the salient patch selection strategy is first applied to select salient vectors from one shallow convolutional layer. Then, corresponding weights are learned from one deep convolutional layer. After obtaining a set of salient vectors with various weights, this paper is further designed to aggregate them into a representative vector for each ground-based cloud image by explicitly modeling the relationship among salient vectors. The proposed SDA<sup>2</sup> is validated on three ground-based cloud databases, and the experimental results prove its effectiveness. Especially, we obtain the promising classification results of 91.24% on the MOC_e database, 91.15% on the IAP_e database, and 88.73% on the CAMS_e database. |
| first_indexed | 2024-12-19T08:05:39Z |
| format | Article |
| id | doaj.art-a8fe3150d1b742deb66315d08aa5f111 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T08:05:39Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-a8fe3150d1b742deb66315d08aa5f1112022-12-21T20:29:46ZengIEEEIEEE Access2169-35362018-01-016591735918110.1109/ACCESS.2018.28749948487026Salient Dual Activations Aggregation for Ground-Based Cloud Classification in Weather Station NetworksZhong Zhang0https://orcid.org/0000-0002-2993-8612Donghong Li1Shuang Liu2https://orcid.org/0000-0002-9027-0690Tianjin Key Laboratory of Wireless Mobile Communications and Power Transmission, Tianjin Normal University, Tianjin, ChinaTianjin Key Laboratory of Wireless Mobile Communications and Power Transmission, Tianjin Normal University, Tianjin, ChinaTianjin Key Laboratory of Wireless Mobile Communications and Power Transmission, Tianjin Normal University, Tianjin, ChinaSince appearances of clouds are always changeable, ground-based cloud classification is still in urgent need of development in weather station networks. Many existing methods resort to convolutional neural networks to improve the classification accuracy. However, these methods just carry out the feature extraction from one convolutional layer, hence making it difficult to obtain complete information of ground-based cloud images. To address this limitation, in this paper, we propose a novel method named salient dual activations aggregation (SDA<sup>2</sup>) to extract ground-based cloud features from different convolutional layers, which could learn the structural, textural, and high-level semantic information for ground-based cloud representation, simultaneously. Specifically, the salient patch selection strategy is first applied to select salient vectors from one shallow convolutional layer. Then, corresponding weights are learned from one deep convolutional layer. After obtaining a set of salient vectors with various weights, this paper is further designed to aggregate them into a representative vector for each ground-based cloud image by explicitly modeling the relationship among salient vectors. The proposed SDA<sup>2</sup> is validated on three ground-based cloud databases, and the experimental results prove its effectiveness. Especially, we obtain the promising classification results of 91.24% on the MOC_e database, 91.15% on the IAP_e database, and 88.73% on the CAMS_e database.https://ieeexplore.ieee.org/document/8487026/Weather station networkssalient dual activations aggregationconvolutional neural networksground-based cloud classification |
| spellingShingle | Zhong Zhang Donghong Li Shuang Liu Salient Dual Activations Aggregation for Ground-Based Cloud Classification in Weather Station Networks IEEE Access Weather station networks salient dual activations aggregation convolutional neural networks ground-based cloud classification |
| title | Salient Dual Activations Aggregation for Ground-Based Cloud Classification in Weather Station Networks |
| title_full | Salient Dual Activations Aggregation for Ground-Based Cloud Classification in Weather Station Networks |
| title_fullStr | Salient Dual Activations Aggregation for Ground-Based Cloud Classification in Weather Station Networks |
| title_full_unstemmed | Salient Dual Activations Aggregation for Ground-Based Cloud Classification in Weather Station Networks |
| title_short | Salient Dual Activations Aggregation for Ground-Based Cloud Classification in Weather Station Networks |
| title_sort | salient dual activations aggregation for ground based cloud classification in weather station networks |
| topic | Weather station networks salient dual activations aggregation convolutional neural networks ground-based cloud classification |
| url | https://ieeexplore.ieee.org/document/8487026/ |
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