arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1501.04579cs.SI
收藏

影响力最大化的稳定性

Stability of Influence Maximization

Xinran He, David Kempe

摘要:

本文是我们在KDD 2014会议上发表的同名论文的勘误表。在那篇文章中,我们错误地声称1.4节中定义的目标函数是非单调子模的。我们非常感谢德布玛利亚·曼达尔、让·普热-阿巴迪和亚龙·辛格提请我们注意与这一说法相反的一个例子。在意识到反例之后,我们已经表明,对于任何$ε> 0$,目标函数实际上是NP-难以近似到$O(n^{1-ε})$的因子内的。为了修正这个记录,本文将原错误文章中的问题动机、模型和实验结果部分与新的硬度结果结合起来。我们希望读者只引用和使用这个版本(这将仍然是一个未发表的说明),而不是不正确的会议版本。

英文摘要:

The present article serves as an erratum to our paper of the same title, which was presented and published in the KDD 2014 conference. In that article, we claimed falsely that the objective function defined in Section 1.4 is non-monotone submodular. We are deeply indebted to Debmalya Mandal, Jean Pouget-Abadie and Yaron Singer for bringing to our attention a counter-example to that claim. Subsequent to becoming aware of the counter-example, we have shown that the objective function is in fact NP-hard to approximate to within a factor of $O(n^{1-ε})$ for any $ε> 0$. In an attempt to fix the record, the present article combines the problem motivation, models, and experimental results sections from the original incorrect article with the new hardness result. We would like readers to only cite and use this version (which will remain an unpublished note) instead of the incorrect conference version.

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。

↑