论文标题

通过动态嵌入的图编辑距离的组合学习

Combinatorial Learning of Graph Edit Distance via Dynamic Embedding

论文作者

Wang, Runzhong, Zhang, Tianqi, Yu, Tianshu, Yan, Junchi, Yang, Xiaokang

论文摘要

图编辑距离(GED)是成对图的流行相似性测量值,它也指编辑路径从源图到目标图的恢复。传统的A*算法由于其详尽的性质而遭受可扩展性问题,其搜索启发式严重依赖于人类的先验知识。本文通过梳理传统的基于搜索的技术来生产编辑路径,以及深层嵌入模型的效率和适应性来实现具有成本效益的GED求解器的效率和适应性,从而提出了一种混合方法。受动态编程的启发,节点级嵌入以动态的重用方式指定,并鼓励次优的分支被修剪。为此,我们的方法可以很容易地以动态的方式集成到一个过程中,并通过学识渊博的启发式方法可以显着减轻计算负担。不同图形数据集的实验结果表明,我们的方法可以显着缓解A*的搜索过程,而不会牺牲太多的准确性。据我们所知,这项工作也是第一种基于深度学习的GED方法,用于恢复编辑路径。

Graph Edit Distance (GED) is a popular similarity measurement for pairwise graphs and it also refers to the recovery of the edit path from the source graph to the target graph. Traditional A* algorithm suffers scalability issues due to its exhaustive nature, whose search heuristics heavily rely on human prior knowledge. This paper presents a hybrid approach by combing the interpretability of traditional search-based techniques for producing the edit path, as well as the efficiency and adaptivity of deep embedding models to achieve a cost-effective GED solver. Inspired by dynamic programming, node-level embedding is designated in a dynamic reuse fashion and suboptimal branches are encouraged to be pruned. To this end, our method can be readily integrated into A* procedure in a dynamic fashion, as well as significantly reduce the computational burden with a learned heuristic. Experimental results on different graph datasets show that our approach can remarkably ease the search process of A* without sacrificing much accuracy. To our best knowledge, this work is also the first deep learning-based GED method for recovering the edit path.

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