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Xiyun Ge, Hongkun Zhou, Junbo Zhao, Xiaowei Li, Xinyu Liu, Jin Li and Chengming Luo
With the extensive application of sensor technology in scientific ocean research, ocean resource exploration, underwater engineering construction, and other fields, underwater target positioning technology has become an important support for the ocean fi...
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Chengming Li, Zheng Wu, Lining Zhu, Li Liu and Chengcheng Zhang
The COVID-19 pandemic is a major problem facing humanity throughout the world. The rapid and accurate tracking of population flows may therefore be epidemiologically informative. This paper adopts a massive amount of daily population flow data (from Janu...
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Chengming Li, Li Liu, Zhaoxin Dai and Xiaoli Liu
Point of interest (POI) matching is critical but is the most technically difficult part of multi-source POI fusion. The accurate matching of POIs from different sources is important for the effective reuse of POI data. However, the existing research on P...
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Chengming Li, Zixian Fan, Zheng Wu, Zhaoxin Dai, Li Liu and Chengcheng Zhang
Catchment division constitutes the foundation for urban water flood forecasting but represents a technically challenging task. The accurate division of catchments is significant for precisely forecasting urban waterlogging. However, existing catchment di...
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Zhenwang Li, Quan Tang, Xu Wang, Baorui Chen, Chengming Sun and Xiaoping Xin
Land use and land cover (LULC) change has greatly altered ecosystem carbon storage and exerted an enormous impact on terrestrial carbon cycling. Characterizing its impact on ecosystem carbon storage is critical to balance regional carbon budgets and make...
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Yuling Li, Lianjie Yue, Chengming He, Wannan Wu and Hao Chen
The present paper focuses on the Lagrange optimization of shock waves for a two-dimensional hypersonic inlet by limiting the cowl internal angle and inlet length. The results indicate the significant influences of geometric constraints on the configurati...
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Xiaoqian Cheng, Weibing Du, Chengming Li, Leiku Yang and Linjuan Xu
Human activities generate diverse and sophisticated functional areas and may impact the existing planning of functional areas. Understanding the relationship between human activities and functional areas is key to identifying the real-time urban function...
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Chengming Li, Jiaxi Hu, Zhaoxin Dai, Zixian Fan and Zheng Wu
With the arrival of the big data era, mobile phone data have attracted increasing attention due to their rich information and high sampling rate. Currently, researchers have conducted various studies using mobile phone data. However, most existing studie...
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Chengming Li, Wei Wu, Pengda Wu, Yong Yin and Zhaoxin Dai
As the coding of a dendritic river system can be used to represent the stream order and spatial-structure of a river network, it is always used in river selection, which is a key step in topographic map generalization. There are two categories of convent...
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Bo Ai, Decheng Sun, Yanmei Liu, Chengming Li, Fanlin Yang, Yong Yin and Huibo Tian
When it comes to feature retention in multi-scale representations of ocean flow fields, not all data points are equal. Therefore, this paper proposes a method of selecting data points based on their importance. First, an autocorrelation analysis is perfo...
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Yan Chen, Chengming Zhang, Shouyi Wang, Jianping Li, Feng Li, Xiaoxia Yang, Yuanyuan Wang and Leikun Yin
Using satellite remote sensing has become a mainstream approach for extracting crop spatial distribution. Making edges finer is a challenge, while simultaneously extracting crop spatial distribution information from high-resolution remote sensing images ...
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Chengming Li, Yong Yin, Pengda Wu and Wei Wu
Extraction of the skeleton line of complex polygons is difficult, and a hot topic in map generalization study. Due to the irregularity and complexity of junctions, it is difficult for traditional methods to maintain main structure and extension character...
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Yong Yin, Chengming Li and Pengda Wu
Filling dot maps with a regular pattern is a key step in visual representation of land use data. The traditional methods cannot adapt well to shape features of complex areas, leading to an unreasonable symbol arrangement in the inner region and area boun...
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Xiaoqian Cheng, Chengming Li, Weibing Du, Jianming Shen and Zhaoxin Dai
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Chengming Li, Yong Yin, Xiaoli Liu and Pengda Wu
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Chengming Ye, Yifei Chen and Jonathan Li
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A S M Touhidul Hasan, Qiang Qu, Chengming Li, Lifei Chen and Qingshan Jiang
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Chengming Li, Yong Yin, Pengda Wu, Xiaoli Liu and Peipei Guo
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A S M Touhidul Hasan, Qingshan Jiang and Chengming Li
Bike sharing programs are eco-friendly transportation systems that are widespread in smart city environments. In this paper, we study the problem of privacy-preserving bike sharing microdata publishing. Bike sharing systems collect visiting information a...
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Chengming Zhang, Shuai Gao, Xiaoxia Yang, Feng Li, Maorui Yue, Yingjuan Han, Hui Zhao, Ya?nan Zhang and Keqi Fan
When extracting winter wheat spatial distribution by using convolutional neural network (CNN) from Gaofen-2 (GF-2) remote sensing images, accurate identification of edge pixel is the key to improving the result accuracy. In this paper, an approach for ex...
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