arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.03112cs.LGstat.ML
收藏

用FastMap-D在势场中嵌入有向图

Embedding Directed Graphs in Potential Fields Using FastMap-D

Arizona State University(亚利桑那州立大学);University of Southern California(南加州大学)

Sriram Gopalakrishnan, Liron Cohen, Sven Koenig, T. K. Satish Kumar

摘要:

在欧氏空间中嵌入无向图有许多计算上的好处。FastMap是一种高效的嵌入算法,它有助于对无向图上的问题进行几何解释。然而,欧几里德距离本质上是对称的,因此欧几里德嵌入不能用于有向图。在本文中,我们提出了FastMap-D,一个有效的推广FastMap有向图。FastMap-D使用势场嵌入顶点,以捕获有向图中成对距离之间的不对称性。FastMap-D使用机器学习模块学习势函数以定义势场。在各种有向图的实验中,我们证明了FastMap-D比其他方法的优势。

英文摘要:

Embedding undirected graphs in a Euclidean space has many computational benefits. FastMap is an efficient embedding algorithm that facilitates a geometric interpretation of problems posed on undirected graphs. However, Euclidean distances are inherently symmetric and, thus, Euclidean embeddings cannot be used for directed graphs. In this paper, we present FastMap-D, an efficient generalization of FastMap to directed graphs. FastMap-D embeds vertices using a potential field to capture the asymmetry between the pairwise distances in directed graphs. FastMap-D learns a potential function to define the potential field using a machine learning module. In experiments on various kinds of directed graphs, we demonstrate the advantage of FastMap-D over other approaches.

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。

↑