论文标题

基于网络的复杂图形嵌入方法用于链接预测

A Complex Network based Graph Embedding Method for Link Prediction

论文作者

Kerrache, Said, Benhidour, Hafida

论文摘要

图形嵌入方法旨在通过将节点映射到低维矢量空间来查找有用的图表。这是一个具有重要下游应用程序的任务,例如链接预测,图形重建,数据可视化,节点分类和语言建模。近年来,图形嵌入的领域见证了从线性代数方法转向基于局部的基于梯度的优化方法,结合了随机步行和深神经网络,以解决嵌入大图的问题。但是,尽管优化工具有所改进,但图形嵌入方法仍然以忽略现实生活网络的特殊性的方式开发。实际上,近年来,理解和建模复杂的现实生活网络取得了重大进展。但是,获得的结果对嵌入算法的发展的发展产生了较小的影响。本文旨在通过设计一种图形嵌入方法来解决此问题,该方法利用网络科学领域的最新有价值的见解。更准确地说,我们基于流行性相似性和局部吸引力范例提出了一种新颖的图形嵌入方法。我们在大量现实生活网络上评估了在链接预测任务上提出的方法的性能。我们使用广泛的实验分析表明,该提出的方法优于嵌入算法的最先进的图形。我们还证明了它对数据稀缺性的鲁棒性和嵌入维度的选择。

Graph embedding methods aim at finding useful graph representations by mapping nodes to a low-dimensional vector space. It is a task with important downstream applications, such as link prediction, graph reconstruction, data visualization, node classification, and language modeling. In recent years, the field of graph embedding has witnessed a shift from linear algebraic approaches towards local, gradient-based optimization methods combined with random walks and deep neural networks to tackle the problem of embedding large graphs. However, despite this improvement in the optimization tools, graph embedding methods are still generically designed in a way that is oblivious to the particularities of real-life networks. Indeed, there has been significant progress in understanding and modeling complex real-life networks in recent years. However, the obtained results have had a minor influence on the development of graph embedding algorithms. This paper aims to remedy this by designing a graph embedding method that takes advantage of recent valuable insights from the field of network science. More precisely, we present a novel graph embedding approach based on the popularity-similarity and local attraction paradigms. We evaluate the performance of the proposed approach on the link prediction task on a large number of real-life networks. We show, using extensive experimental analysis, that the proposed method outperforms state-of-the-art graph embedding algorithms. We also demonstrate its robustness to data scarcity and the choice of embedding dimensionality.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源