Cost-Efficient Strategies for Restraining Rumor Spreading in Mobile Social Networks
Cost-Efficient Strategies for Restraining Rumor Spreading in Mobile Social Networks
复制标题
抑制移动社交网络中谣言传播的经济高效策略
DOI：
10.1109/tvt.2016.2585591
复制
发表时间：
2017-03-01
影响因子：
6.8
通讯作者：
Li, Yingshu
中科院分区：
文献类型：
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作者：
He, Zaobo;Cai, Zhipeng;Li, Yingshu
随着移动设备的普及，移动社交网络（MSN）已成为信息传播的重要平台。然而，MSN 中谣言的传播带来了巨大的社会威胁。目前解决这个问题的方法有两种：对有影响力的用户进行封堵谣言和传播真相澄清谣言。然而，大多数现有的工作要么忽略了各种方法的成本，要么只单独考虑不同的方法。本文提出了一种基于异构网络的流行病模型，该模型结合了两种方法来描述 MSN 中的谣言传播。此外，还设计了两种具有成本效益的策略来抑制谣言。第一种策略是实时优化策略，通过优化组合各种谣言抑制方法，使谣言抑制成本最小化，使谣言能够在预期时间内消灭。第二个策略是脉冲传播真相和持续阻断谣言策略，通过周期性传播真相来抑制谣言的传播。这两种策略可以持续或周期性地抑制谣言，并保证成本效率。针对 Digg2009 数据集的实验证明了所提出模型的有效性以及两种策略的效率。
With the popularity of mobile devices, mobile social networks (MSNs) have become an important platform for information dissemination. However, the spread of rumors in MSNs present a massive social threat. Currently, there are two kinds of methods to address this: blocking rumors at influential users and spreading truth to clarify rumors. However, most existing works either overlook the cost of various methods or only consider different methods individually. This paper proposes a heterogeneous-network-based epidemic model that incorporates the two kinds of methods to describe rumor spreading in MSNs. Moreover, two cost-efficient strategies are designed to restrain rumors. The first strategy is the real-time optimization strategy that minimizes the rumor-restraining cost by optimally combining various rumor-restraining methods such that a rumor can be extinct within an expected time period. The second strategy is the pulse spreading truth and continuous blocking rumor strategy that restrains rumor spreading through spreading truth periodically. The two strategies can restrain rumors in a continuous or periodical manner and guarantee cost efficiency. The experiments toward the Digg2009 data set demonstrate the effectiveness of the proposed model and the efficiency of the two strategies.