论文标题
基于GCN的多任务表示学习属性网络中的异常检测
GCN-based Multi-task Representation Learning for Anomaly Detection in Attributed Networks
论文作者
论文摘要
近年来,由于其在金融,网络安全和医学等广泛的领域中的应用,近年来,归因网络中的异常检测受到了极大的关注。传统方法不能在属性网络的设置上采用以解决异常检测问题。这种方法的主要局限性是它们固有地忽略了数据特征之间的关系信息。在基于深度学习和图神经网络的技术中迅速爆炸,在归因网络上发现稀有物体的稀有物体由于深度技术在提取复杂关系方面的潜力而显着前进。在本文中,我们提出了一个有关异常检测的新架构。设计这样的体系结构的主要目标是利用多任务学习,以增强检测性能。基于多任务的基于学习的异常检测仍处于起步阶段,现有文献中只有少数研究迎合了同样的研究。我们合并了社区检测和多视图表示学习技术,以从归因网络中提取明显和互补的信息,并随后融合捕获的信息以获得更好的检测结果。该体系结构中采用的两个主要组成部分(即社区特定的学习和多视图表示学习)之间的相互合作展示了一种有希望的解决方案,可以取得更有效的结果。
Anomaly detection in attributed networks has received a considerable attention in recent years due to its applications in a wide range of domains such as finance, network security, and medicine. Traditional approaches cannot be adopted on attributed networks' settings to solve the problem of anomaly detection. The main limitation of such approaches is that they inherently ignore the relational information between data features. With a rapid explosion in deep learning- and graph neural networks-based techniques, spotting rare objects on attributed networks has significantly stepped forward owing to the potentials of deep techniques in extracting complex relationships. In this paper, we propose a new architecture on anomaly detection. The main goal of designing such an architecture is to utilize multi-task learning which would enhance the detection performance. Multi-task learning-based anomaly detection is still in its infancy and only a few studies in the existing literature have catered to the same. We incorporate both community detection and multi-view representation learning techniques for extracting distinct and complementary information from attributed networks and subsequently fuse the captured information for achieving a better detection result. The mutual collaboration between two main components employed in this architecture, i.e., community-specific learning and multi-view representation learning, exhibits a promising solution to reach more effective results.