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计算机工程

• 人工智能及识别技术 • 上一篇    下一篇

基于PageRank的网络社区意见领袖发现算法

周飞,高茂庭   

  1. (上海海事大学 信息工程学院,上海 201306)
  • 收稿日期:2016-12-12 出版日期:2018-02-15 发布日期:2018-02-15
  • 作者简介:周飞(1993—),男,硕士研究生,主研方向为数据挖掘、数据分析;高茂庭,教授、博士、CCF高级会员。
  • 基金资助:
    国家自然科学基金(61202022)。

Discovery Algorithm of Opinion Leaders for Network Community Based on PageRank

ZHOU Fei,GAO Maoting   

  1. (College of Information Engineering,Shanghai Maritime University,Shanghai 201306,China)
  • Received:2016-12-12 Online:2018-02-15 Published:2018-02-15

摘要: 意见领袖是网络社区中积极的信息传播者和信息引导者,对其影响力的评估是社交网络分析的一项重要内容。针对现有算法对用户动态行为分析和动态内容影响考虑欠缺而不能客观反映真实情况的问题,提出一种基于用户影响力和PageRank的意见领袖发现算法,综合考虑用户自身影响力、用户动态行为影响度和用户行为给动态内容带来的真实影响。通过从知乎网络社区收集的大规模数据实验结果表明,该算法更具合理性并能有效地提高网络社区意见领袖的识别准确度。

关键词: 网络社区, 意见领袖, 影响力, PageRank算法, 用户行为

Abstract: Opinion leader is active information promulgator in the network community and the guide of information transmission.The assessment for opinion leaders’ influence is an important content of social network analysis.To improve the considerations about the analysis of user dynamic behavior and the influence of dynamic content,and reflect the real situation objectively,a discovery algorithm of opinion leaders based on user’s influence and PageRank is proposed.It combines user’s own influence,the influence degree of user dynamic behaviors and the real impact of dynamic content brought by the dynamic behaviors.Experimental results on the large-scale data collected from Zhihu network community demonstrate that the algorithm is more reasonable and can effectively improve the recognition accuracy of the network community opinion leaders.

Key words: network community, opinion leader, influence, PageRank algorithm, user activity

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