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arXiv 1902.00192cs.SI
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一般反馈模型下的自适应影响力最大化

Adaptive Influence Maximization under General Feedback Models

Guangmo Tong, Ruiqi Wang

摘要:

影响力最大化是一个典型的问题,使应用程序在各个领域,并在过去的十年中得到了广泛的研究。经典的影响力最大化问题探讨了在扩散过程开始之前部署种子用户的策略,以使总影响力最大化。在其自适应版本中,允许种子节点在观察到某些扩散结果后以自适应方式启动。本文对自适应影响力最大化问题进行了系统的研究,重点分析了非自适应子模化情形下的算法。我们引入了后悔率的概念,它表征了自适应播种策略设计中的关键权衡,在此基础上,我们提出了著名的贪婪政策的近似分析。此外,我们提供了有关提高效率和限制后悔率的分析。最后,我们提出了几个未来的研究方向。

英文摘要:

Influence maximization is a prototypical problem enabling applications in various domains, and it has been extensively studied in the past decade. The classic influence maximization problem explores the strategies for deploying seed users before the start of the diffusion process such that the total influence can be maximized. In its adaptive version, seed nodes are allowed to be launched in an adaptive manner after observing certain diffusion results. In this paper, we provide a systematic study on the adaptive influence maximization problem, focusing on the algorithmic analysis of the scenarios when it is not adaptive submodular. We introduce the concept of regret ratio which characterizes the key trade-off in designing adaptive seeding strategies, based on which we present the approximation analysis for the well-known greedy policy. In addition, we provide analysis concerning improving the efficiencies and bounding the regret ratio. Finally, we propose several future research directions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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