End-to-end learning for image-based air quality level estimation
End-to-end learning for image-based air quality level estimation
复制标题
基于图像的空气质量水平估计的端到端学习
DOI:
10.1007/s00138-018-0919-x
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发表时间:
2018-03
影响因子:
3.3
通讯作者:
Rongfang Bie
中科院分区:
文献类型:
--
作者:
Chao Zhang;Junchi Yan;Changsheng Li;Hao Wu;Rongfang Bie
Air quality estimation is an important and fundamental problem in environmental protection. Several efforts have been made in the past decades using expensive sensor-based or indirect methods like based on social networks; however, image-based air pollution estimation is still far from solved. This paper devises an effective convolutional neural network (CNN) to estimate air quality based on images. Our method is comprised of three ingredients: We first design an ensemble CNN for air quality estimation which is expected to obtain more accurate and stable results than a single classifier. Second, three ordinal classifiers, namely negative log–log ordinal classifier, cauchit ordinal classifier and complementary log–log ordinal classifier, are devised in the last layer of each CNN, to improve the ordinal discriminative ability of the model. Third, as a variant of the rectified linear units, an adjusted activation function is introduced. We collect open air images with corresponding air quality levels from an official agency as the ground truth. Experimental results demonstrate the effectiveness of our method on the real-world dataset.
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DOI:
10.1198/tas.2003.s212
发表时间:
2003-02
期刊:
The American Statistician
影响因子:
--
作者:
R. D. Cook;S. Weisberg
通讯作者:
R. D. Cook;S. Weisberg
DOI:
10.1145/2964284.2967230
发表时间:
2016-10
期刊:
Proceedings of the 24th ACM international conference on Multimedia
影响因子:
--
作者:
Chao Zhang;Junchi Yan;Changsheng Li;Xiaoguang Rui;Liang Liu;R. Bie
通讯作者:
Chao Zhang;Junchi Yan;Changsheng Li;Xiaoguang Rui;Liang Liu;R. Bie
DOI:
10.1109/tnet.2017.2684831
发表时间:
2017
期刊:
IEEE/ACM Transactions on Networking
影响因子:
--
作者:
Yu Dongxiao;Ning Li;Zou Yifei;Yu Jiguo;Cheng Xiuzhen;Lau Francis C M
通讯作者:
Lau Francis C M
影响因子:
2.5
作者:
E. Ziegel
通讯作者:
E. Ziegel
影响因子:
8.9
作者:
A. Jurek;Y. Bi;Shengli Wu;C. Nugent
通讯作者:
A. Jurek;Y. Bi;Shengli Wu;C. Nugent