系统仿真学报 ›› 2022, Vol. 34 ›› Issue (5): 1140-1151.doi: 10.16182/j.issn1004731x.joss.20-0962

• 仿真支撑平台/系统技术 • 上一篇    下一篇

结合社交媒体数据的城市交通事件可视分析方法

吴向平1,2(), 平力俊1, 徐懂事1   

  1. 1.中国计量大学 信息工程学院,浙江  杭州  310018
    2.中国计量大学 浙江省电磁波信息技术与计量检测重点实验室,浙江  杭州  310018
  • 收稿日期:2020-12-03 修回日期:2021-01-19 出版日期:2022-05-18 发布日期:2022-05-25
  • 作者简介:吴向平(1977-),男,博士,副教授,研究方向为数据可视化、生物医学图像处理、计算机视觉。E-mail:xiangpingwu@cjlu.edu.cn
  • 基金资助:
    浙江省基础公益研究计划(LGF20F020012)

A Visual Analytics of Urban Traffic Events Using Social Media Data

Xiangping Wu1,2(), Lijun Ping1, Dongshi Xu1   

  1. 1.College of Information Engineering, China Jiliang University, Hangzhou 310018, China
    2.Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province, China Jiliang University, Hangzhou 310018, China
  • Received:2020-12-03 Revised:2021-01-19 Online:2022-05-18 Published:2022-05-25

摘要:

社交媒体中的文本内容可对交通量数据进行补充,为此提出一个交通事件可视分析方法。建立交通事件文本处理模型,提取事件的描述信息基于图嵌入算法学习道路节点属性的向量表示,建立道路相似性模型结合核密度模型建立交通事件发生概率预测模型设计了一个交互式可视分析界面对于交通事件进行可视分析与探索。通过交通信息抽取、道路相似性度量以及交通事件交互预测等案例分析,验证了所提方法的有效性,可以辅助交通部门管理决策。

关键词: 数据可视化, 信息抽取, 相似性分析, 交通事件预测, 可视分析

Abstract:

Traffic text data in social media can supplement traffic flow information, for which a visual analysis method for traffic events is proposed. A text processing model is designed to process the social media data and extract the description information of traffic event. The vector representation of road node attributes is learned based on graph embedding algorithm, and a road similarity model is estbalished. A prediction model of the traffic event is built based on the road similarity and the kernel density model. An interactive visual analysis system is designed to carry out visual analysis. Though traffic information extraction, road similarity measurement and traffic event interaction prediction, the effectiveness of the proposed method is verified and can assist traffic department management decisions.

Key words: data visualization, information extraction, road similarity, traffic prediction, visual analytics

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