图 书 馆
基于网络定位的社会网络的社会空间属性Socio-Spatial Properties of Online Location-Based Social Networks |
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| 课程网址: | http://videolectures.net/icwsm2011_scellato_spatial/ |
| 主讲教师: | Salvatore Scellato |
| 开课单位: | 剑桥大学 |
| 开课时间: | 2011-08-18 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | The spatial structure of large-scale online social networks has been largely unaccessible due to the lack of available and accurate data about people’s location. However, with the recent surging popularity of location-based social services, data about the geographic position of users have been available for the first time, together with their online social connections. In this work we present a comprehensive study of the spatial properties of the social networks arising among users of three main popular online location-based services. We observe robust universal features across them: while all networks exhibit about 40% of links below 100 km, we further discover strong heterogeneity across users, with different characteristic spatial lengths of interaction across both their social ties and social triads. We provide evidence that mechanisms akin to gravity models may influence how these social connections are created over space. Our results constitute the first largescale study to unravel the socio-spatial properties of online location-based social networks. |
| 关 键 词: | 社交网络; 空间属性; 普遍特征; 异质性 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2021-01-30：nkq |
| 阅读次数: | 48 |