论文标题

量化图表学习应用中的挑战

Quantifying Challenges in the Application of Graph Representation Learning

论文作者

Gogoglou, Antonia, Bruss, C. Bayan, Nguyen, Brian, Sarshogh, Reza, Hines, Keegan E.

论文摘要

图表学习(GRL)已经取得了重大进展,作为一种以有意义的方式提取结构信息的手段,以进行后续的学习任务。当前的方法包括浅嵌入和图神经网络,主要通过节点分类和链接预测任务进行了测试。在这项工作中,我们为一组流行的嵌入方法提供了面向应用程序的视角,并评估其相对于现实图形属性的代表性。我们实施了广泛的经验数据驱动框架,以挑战有关图形中嵌入方法的表达能力的现有规范,以及对我们在此过程中发现的局限性的理论分析。我们的结果表明,在现实世界中,很难定义“一对一的” GRL方法,并且随着新方法的引入,他们应该明确地鉴于其捕获图形属性及其在具有非平凡结构差异的数据集中的能力。

Graph Representation Learning (GRL) has experienced significant progress as a means to extract structural information in a meaningful way for subsequent learning tasks. Current approaches including shallow embeddings and Graph Neural Networks have mostly been tested with node classification and link prediction tasks. In this work, we provide an application oriented perspective to a set of popular embedding approaches and evaluate their representational power with respect to real-world graph properties. We implement an extensive empirical data-driven framework to challenge existing norms regarding the expressive power of embedding approaches in graphs with varying patterns along with a theoretical analysis of the limitations we discovered in this process. Our results suggest that "one-to-fit-all" GRL approaches are hard to define in real-world scenarios and as new methods are being introduced they should be explicit about their ability to capture graph properties and their applicability in datasets with non-trivial structural differences.

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