图 书 馆
移动通信网络的结构和优势Structure and tie strengths in a mobile communication network |
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| 课程网址: | http://videolectures.net/mlg08_saramaki_sts/ |
| 主讲教师: | Jari Saramaki |
| 开课单位: | 阿尔托大学 |
| 开课时间: | 2008-08-25 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | We examine the communication patterns of millions of anonymized mobile phone users. Based on call records, we construct a communication network where vertices are subscribers and edge weights are defined as aggregated duration of calls, reflecting the strengths of social ties between callers. We observe a coupling between tie strengths and network topology: at the ”local” level, strong ties are associated with densely connected network neighborhoods, providing the first large-scale confirmation of the Granovetter hypothesis. Based on fragmentation analysis, weak ties are seen to play an important role at the network level, accounting for global connectivity. The observed coupling is shown to significantly slow down the spreading of random information, resulting in dynamic trapping of information in communities. |
| 关 键 词: | 呼叫记录; 通信网络; 动态捕获 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-06-06：刘家豪(课程编辑志愿者) |
| 阅读次数: | 60 |