图 书 馆
在位置共享服务中探索数以百万计的脚印Exploring Millions of Footprints in Location Sharing Services |
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| 课程网址: | http://videolectures.net/icwsm2011_cheng_footprints/ |
| 主讲教师: | Zhiyuan Cheng |
| 开课单位: | 德州农工大学 |
| 开课时间: | 信息不详。欢迎您在右侧留言补充。 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Location sharing services (LSS) like Foursquare, Gowalla, and Facebook Places support hundreds of millions of userdriven footprints (i.e., “checkins”). Those global-scale footprints provide a unique opportunity to study the social and temporal characteristics of how people use these services and to model patterns of human mobility, which are significant factors for the design of future mobile+location-based services, traffic forecasting, urban planning, as well as epidemiological models of disease spread. In this paper, we investigate 22 million checkins across 220,000 users and report a quantitative assessment of human mobility patterns by analyzing the spatial, temporal, social, and textual aspects associated with these footprints. We find that: (i) LSS users follow the “L`evy Flight” mobility pattern and adopt periodic behaviors; (ii) While geographic and economic constraints affect mobility patterns, so does individual social status; and (iii) Content and sentiment-based analysis of posts associated with checkins can provide a rich source of context for better understanding how users engage with these services. |
| 关 键 词: | 位置共享服务; 社会特性; 时间特性; 周期性行为 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-12-10：cwx |
| 阅读次数: | 37 |