arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2002.01227cs.LGcs.ITmath.ITstat.ML
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ALPINE:使用网络嵌入的活动链接预测

ALPINE: Active Link Prediction using Network Embedding

Ghent University(根特大学);IDLab(ID实验室);Dept. of Electronics and Information Systems(电子与信息系统系)

Xi Chen, Bo Kang, Jefrey Lijffijt, Tijl De Bie

摘要:

许多现实世界的问题可以形式化为预测部分观测网络中的链接。例如,Facebook的友谊建议,消费者产品推荐,以及识别犯罪网络中参与者之间的隐藏互动。几种链接预测算法,特别是最近引入的使用网络嵌入的算法,能够通过仅依赖于网络的观察部分来实现这一点。通常,可以查询节点对的链路状态,其可以被链接预测算法用作附加信息。不幸的是,这样的查询可能是昂贵的或耗时的,强制仔细考虑哪些节点对查询。在本文中,我们估计查询任何特定的节点对后,在链接预测准确性的改善,使用在主动学习设置。具体来说,我们提出了ALPINE(主动链路预测使用网络嵌入),第一种方法来实现这一链接预测的基础上网络嵌入。为此,我们从实验设计中推广了V-最优性的概念,以及最初在标准分类设置中开发的更基本的主动学习策略。实际数据的实验结果表明,ALPINE是可扩展的,并提高链接预测的准确性与少得多的查询。

英文摘要:

Many real-world problems can be formalized as predicting links in a partially observed network. Examples include Facebook friendship suggestions, consumer-product recommendations, and the identification of hidden interactions between actors in a crime network. Several link prediction algorithms, notably those recently introduced using network embedding, are capable of doing this by just relying on the observed part of the network. Often, the link status of a node pair can be queried, which can be used as additional information by the link prediction algorithm. Unfortunately, such queries can be expensive or time-consuming, mandating the careful consideration of which node pairs to query. In this paper we estimate the improvement in link prediction accuracy after querying any particular node pair, to use in an active learning setup. Specifically, we propose ALPINE (Active Link Prediction usIng Network Embedding), the first method to achieve this for link prediction based on network embedding. To this end, we generalized the notion of V-optimality from experimental design to this setting, as well as more basic active learning heuristics originally developed in standard classification settings. Empirical results on real data show that ALPINE is scalable, and boosts link prediction accuracy with far fewer queries.

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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