论文标题

预算影响通过在社交网络中的增强模拟退火来最大化

Budgeted Influence Maximization via Boost Simulated Annealing in Social Networks

论文作者

Wu, Jianshe, Gao, Junjun, Zhu, Hongde, Zhang, Zulei

论文摘要

由于更接近实际应用程序方案,预算影响最大化(BIM)问题引起了研究人员的极大关注。作为影响最大化问题(IM)问题的一种变体,BIM问题旨在挖掘几个以不同的成本作为预算有限的种子来挖掘几个节点,以最大程度地发挥影响力。通过首先在给定的传播模型下激活这些种子节点并扩散影响,可以在网络中达到最大的影响。 已经提出了几种用于BIM的方法。它们中的大多数是修改的贪婪算法的修改版本,它们在IM上效果很好,但似乎对BIM效率低下,因为不可避免的是大量耗时。最近,提出了一些智能算法以减少运行时间,但是分析表明,它们无法完全利用网络中的节点之间的关系,这将导致影响损失。 受此启发,我们提出了一种基于本文增强的模拟退火(SA)算法的有效方法。提出了三种启发式策略,以提高性能并加快拟议算法。对现实世界和合成网络的实验结果表明,所提出的增强SA的性能要比存在的算法要好得多,而在运行时间几乎相等或更少的运行时间。

Due to much closer to real application scenarios,the budgeted influence maximization (BIM) problem has attracted great attention among researchers. As a variant of the influence maximization (IM) problem, the BIM problem aims at mining several nodes with different costs as seeds with limited budget to maximize the influence as possible. By first activating these seed nodes and spreading influence under the given propagation model, the maximized spread of influence can be reached in the network. Several approaches have been proposed for BIM. Most of them are modified versions of the greedy algorithm, which work well on the IM but seems inefficient for the BIM because huge time consuming is inevitable. Recently, some intelligence algorithms are proposed in order to reduce the running time, but analysis shows that they cannot fully utilize the relationships between nodes in networks, which will result in influence loss. Inspired by this, we propose an efficient method based on boosted simulated annealing (SA) algorithm in this paper. Three heuristic strategies are proposed to improve the performance and speed up the proposed algorithm. Experimental results on both real world and synthetic networks demonstrate that the proposed boosted SA performs much better than existed algorithms on performance with almost equal or less running time.

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