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597 results on '"Huang Jinliang"'

1. A novel alpine land cover classification strategy based on a deep convolutional neural network and multi-source remote sensing data in Google Earth Engine

Author

Yang Qichi, Wang Lihui, Huang Jinliang, Liu Linzhi, Li Xiaodong, Xiao Fei, Du Yun, Yan Xue, and Ling Feng

Subjects
alpine land cover mapping, deep convolutional neural network, multi-source remote sensing data, google earth engine, yarlung zangbo river basin, Mathematical geography. Cartography, GA1-1776, Environmental sciences, GE1-350
Abstract

Alpine land cover (ALC) is facing many challenges with climatic change, biodiversity reduction and other cascading ecosystem damage triggered by natural and anthropogenic interference. Although several global land cover products and thematic maps are already available, their mapping accuracy of alpine and montane regions remains unsatisfactory due to the data acquisition, methodology, and workflow design constraints. Therefore, in this paper, a deep convolutional neural network (DCNN) in Google Earth Engine (GEE) was developed to map the ALC types of the Yarlung Zangbo river basin (YZRB) in the Tibetan plateau using multi-source remote sensing data. The DCNN algorithm was offline trained using automatically generating samples and online deployed in the GEE for a large-scale ALC mapping. Moreover, a set of fine land cover classification system (containing 14 ALC types) was also established in accordance with the natural situation of the YZRB. The overall accuracy and kappa were 86.24% and 0.8156, which were higher than traditional classification algorithms. The spatial distribution of ALC types was analyzed in different gradient zones, and a clear altitudinal characteristic was noticed. The terrain of the YZRB from upper-stream to down-stream with an elevation dramatically decreases, and corresponding to vertical zonal changes from glacier and permanent snow/ice, barren gravel land, alpine desert steppe, alpine steppe, alpine meadow, shrubs, to tree cover. The product can provide valuable land cover information to support alpine ecosystem conservation.

Published
2023
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4. Evaluation methodology of lithologic exploration areas in rift basins: A case from the Bohai Bay Basin

Author

Wang Yuman, Huang Xu'nan, Cheng Kunfang, and Huang Jinliang

Subjects
Petroleum refining. Petroleum products, TP690-692.5
Abstract

Based on the analysis about the main controlling factors of the formation and enrichment of lithologic hydrocarbon reservoirs of sandy conglomerate in the Bohai Bay Basin, and combined with qualitative and quantitative analysis, a classified evaluation mode was established including four factors that are tectonic setting, sedimentary environment, reservoirs and hydrocarbon source rocks. In the evaluation of geologic settings of one rift basin, the authors analyzed and compared the geologic conditions, hydrocarbon bearing and exploratory results of five types of structural zones and three types of sedimentary systems. In the reservoir evaluation, an evaluation item of the reservoir structure was added including six styles and evaluation grades. Combining the classified evaluation of the four factors with the routine analysis of exploration target areas, an evaluation standard of lithologic traps in rift basins was constructed, which is useful to evaluate lithologic targets in rift basins of eastern China. Key words: Bohai Bay Basin, rift basin, lithologic reservoir, sedimentary facies, reservoir structure, target area evaluation

Published
2011
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18. Making China’s water data accessible, usable and shareable

Author

Lin, Jingyu, Bryan, Brett A., Zhou, Xudong, Lin, Peirong, Do, Hong Xuan, Gao, Lei, Gu, Xinchen, Liu, Zhifeng, Wan, Luwen, Tong, Shanlin, Huang, Jiacong, Wang, Qian, Zhang, Yuan, Gao, Hongkai, Yin, Jiabo, Chen, Zilong, Duan, Weili, Xie, Zheyu, Cui, Tong, Liu, Junzhi, Li, Mingqian, Li, Xiaodong, Xu, Zhenwu, Guo, Fei, Shu, Lele, Li, Bin, Zhang, Jingwen, Zhang, Pingping, Fan, Bo, Wang, Yanwen, Zhang, Yifan, Huang, Jinliang, Li, Xin, Cai, Yanpeng, and Yang, Zhifeng

Published
2023
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19. Graph Neural Networks for Massive MIMO Detection

Author

Scotti, Andrea, Moghadam, Nima N., Liu, Dong, Gafvert, Karl, and Huang, Jinliang

Subjects
Electrical Engineering and Systems Science - Signal Processing, Computer Science - Machine Learning
Abstract

In this paper, we innovately use graph neural networks (GNNs) to learn a message-passing solution for the inference task of massive multiple multiple-input multiple-output (MIMO) detection in wireless communication. We adopt a graphical model based on the Markov random field (MRF) where belief propagation (BP) yields poor results when it assumes a uniform prior over the transmitted symbols. Numerical simulations show that, under the uniform prior assumption, our GNN-based MIMO detection solution outperforms the minimum mean-squared error (MMSE) baseline detector, in contrast to BP. Furthermore, experiments demonstrate that the performance of the algorithm slightly improves by incorporating MMSE information into the prior., Comment: ICML 2020 Workshop on Graph Representation Learning and Beyond (GRL+)

Published
2020

26. $\alpha$ Belief Propagation as Fully Factorized Approximation

Author

Liu, Dong, Moghadam, Nima N., Rasmussen, Lars K., Huang, Jinliang, and Chatterjee, Saikat

Subjects
Computer Science - Machine Learning, Statistics - Machine Learning
Abstract

Belief propagation (BP) can do exact inference in loop-free graphs, but its performance could be poor in graphs with loops, and the understanding of its solution is limited. This work gives an interpretable belief propagation rule that is actually minimization of a localized $\alpha$-divergence. We term this algorithm as $\alpha$ belief propagation ($\alpha$-BP). The performance of $\alpha$-BP is tested in MAP (maximum a posterior) inference problems, where $\alpha$-BP can outperform (loopy) BP by a significant margin even in fully-connected graphs., Comment: GlobalSIP 2019

Published
2019

39. Noncoding RNA Terc-53 and hyaluronan receptor Hmmr regulate ageing in mice

Author

Wu, Sipeng, primary, Cai, Yiqi, additional, Zhang, Lixiao, additional, Li, Xiang, additional, Liu, Xu, additional, Zhou, Guangkeng, additional, Luo, Hongdi, additional, Li, Renjian, additional, Huo, Yujia, additional, Zhang, Zhirong, additional, Chen, Siyi, additional, Huang, Jinliang, additional, Shi, Jiahao, additional, Ding, Shanwei, additional, Sun, Zhe, additional, Zhou, Zizhuo, additional, Wang, Pengcheng, additional, and Wang, Geng, additional

Published
2024
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