论文标题

双曲图表示学习:教程

Hyperbolic Graph Representation Learning: A Tutorial

论文作者

Zhou, Min, Yang, Menglin, Pan, Lujia, King, Irwin

论文摘要

图形结构的数据在现实世界应用中广泛存在,例如社交网络,推荐系统,知识图,化学分子等。尽管欧几里得空间成功地用于图形相关的学习任务,但其对复杂模式进行建模的能力基本上受其多项式增长能力的限制。最近,由于指数增长特性,双曲线空间已成为使用树状结构或幂律分布处理图形数据的有希望的替代方法。与多项式扩展的欧几里得空间不同,双曲线空间呈指数增长,这使其在与层次结构组织中抽象类似树状或无规模的图表中获得了自然的优势。 在本教程中,我们旨在介绍这个新兴的图表表示学习领域,以明确的目的是所有受众访问。我们首先简要介绍图表学习以及一些初步的Riemannian和双曲几何形状。然后,我们全面重新审视双曲线嵌入技术,包括双曲线浅模型和双曲神经网络。此外,我们通过将它们统一为一般框架并总结每个组件的变体来介绍当前双曲线图神经网络的技术细节。此外,我们进一步在各个领域中引入了一系列相关应用程序。在最后一部分中,我们讨论了有关图形表示学习双曲线几何形状的几个高级主题,这些主题有可能成为进一步蓬勃发展非欧几里得图学习界的指南。

Graph-structured data are widespread in real-world applications, such as social networks, recommender systems, knowledge graphs, chemical molecules etc. Despite the success of Euclidean space for graph-related learning tasks, its ability to model complex patterns is essentially constrained by its polynomially growing capacity. Recently, hyperbolic spaces have emerged as a promising alternative for processing graph data with tree-like structure or power-law distribution, owing to the exponential growth property. Different from Euclidean space, which expands polynomially, the hyperbolic space grows exponentially which makes it gains natural advantages in abstracting tree-like or scale-free graphs with hierarchical organizations. In this tutorial, we aim to give an introduction to this emerging field of graph representation learning with the express purpose of being accessible to all audiences. We first give a brief introduction to graph representation learning as well as some preliminary Riemannian and hyperbolic geometry. We then comprehensively revisit the hyperbolic embedding techniques, including hyperbolic shallow models and hyperbolic neural networks. In addition, we introduce the technical details of the current hyperbolic graph neural networks by unifying them into a general framework and summarizing the variants of each component. Moreover, we further introduce a series of related applications in a variety of fields. In the last part, we discuss several advanced topics about hyperbolic geometry for graph representation learning, which potentially serve as guidelines for further flourishing the non-Euclidean graph learning community.

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