Visualizing Hidden Themes of Taxi Movement with Semantic Transformation
文献类型：会议论文
| 作者 | Chu Ding; Sheets David A.; Zhao Ye; Wu Yingyu; Yang Jing; Zheng Maogong; Chen George |
| 出版日期 | 2014 |
| 会议名称 | 2014 7th IEEE Pacific Visualization Symposium, PacificVis 2014 |
| 会议地点 | Yokohama, Kanagawa, Japan |
| 英文摘要 | A new methodology is developed to discover and analyze the hidden knowledge of massive taxi trajectory data within a city. This approach creatively transforms the geographic coordinates (i.e. latitude and longitude) to street names reflecting contextual semantic information. Consequently, the movement of each taxi is studied as a document consisting of the taxi traversed street names, which enables semantic analysis of massive taxi data sets as document corpora. Hidden themes, namely taxi topics, are identified through textual topic modeling techniques. The taxi topics reflect urban mobility patterns and trends, which are displayed and analyzed through a visual analytics system. The system integrates interactive visualization tools, including taxi topic maps, topic routes, street clouds and parallel coordinates, to visualize the probability-based topical information. Urban planners, administration, travelers, and drivers can conduct their various knowledge discovery tasks with direct semantic and visual assists. The effectiveness of this approach is illustrated by case studies using a large taxi trajectory data set acquired from 21, 360 taxis in a city. |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/6028]  |
| 专题 | 深圳先进技术研究院_数字所 |
| 作者单位 | 2014 |
| 推荐引用方式 GB/T 7714 | Chu Ding,Sheets David A.,Zhao Ye,et al. Visualizing Hidden Themes of Taxi Movement with Semantic Transformation[C]. 见:2014 7th IEEE Pacific Visualization Symposium, PacificVis 2014. Yokohama, Kanagawa, Japan. |
入库方式： OAI收割
来源：深圳先进技术研究院
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