在线社交网络中具有传播价值的弱关系识别研究

摘要

[目的/意义]鉴于在线社交网络中的部分弱关系在信息传播中扮演了重要角色，提出定量模型来计算和识别具有传播价值的弱关系，以更好地了解网络中信息传播的关系结构。[方法/过程]基于历史交互数据定义了连边权重，运用PageRank算法思想确定网络中的关键节点，最后对关键节点间的弱关系路径进行重要性评价，以识别具有传播价值的弱关系。[结果/结论]实验表明，弱关系路径使信息能够在以意见领袖为中心的社交团体之间“链式”传播，也从侧面揭示了网络中信息流动的关系结构。%Purpose/Significance] Partial weak ties in online social network play significant roles in the process of information diffusion. This aims to better understand the relationship structure of information dissemination. [ Method/Process] We measured the link strength based on historical interaction records, and identified influential nodes PageRank technology. Finally the importance of paths containing weak ties were evaluated to identify weak ties with value of dissemination in online social networks. [ Result/Conclusion] The experimen-tal result show that the paths containing weak ties make it possible for information to spread between social groups represented by opinion leaders, and these important paths containing weak ties reveal the relational structure of information diffusion as well.