图 书 馆
大规模社交网络中流行病毒营销的可扩展影响最大化Scalable Influence Maximization for Prevalent Viral Marketing in Large-Scale Social Networks |
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| 课程网址: | http://videolectures.net/kdd2010_chen_sim/ |
| 主讲教师: | Wei Chen |
| 开课单位: | 微软公司 |
| 开课时间: | 2010-10-01 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Influence maximization, defined by Kempe, Kleinberg, and Tardos (2003), is the problem of finding a small set of seed nodes in a social network that maximizes the spread of influence under certain influence cascade models. The scalability of influence maximization is a key factor for enabling prevalent viral marketing in large-scale online social networks. Prior solutions, such as the greedy algorithm of Kempe et al. (2003) and its improvements are slow and not scalable, while other heuristic algorithms do not provide consistently good performance on influence spreads. In this paper, we design a new heuristic algorithm that is easily scalable to millions of nodes and edges in our experiments. Our algorithm has a simple tunable parameter for users to control the balance between the running time and the influence spread of the algorithm. Our results from extensive simulations on several real-world and synthetic networks demonstrate that our algorithm is currently the best scalable solution to the influence maximization problem: (a) our algorithm scales beyond million-sized graphs where the greedy algorithm becomes infeasible, and (b) in all size ranges, our algorithm performs consistently well in influence spread --- it is always among the best algorithms, and in most cases it significantly outperforms all other scalable heuristics to as much as 100%--260% increase in influence spread. |
| 关 键 词: | 社交网络; 级联模型; 贪婪算法 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-04-30：chenxin |
| 阅读次数: | 69 |