Graph Parsing Networks

Fuente: arXiv
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Main Authors: Song, Yunchong, Huang, Siyuan, Wang, Xinbing, Zhou, Chenghu, Lin, Zhouhan
Format: Preprint
Published: 2024
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author Song, Yunchong
Huang, Siyuan
Wang, Xinbing
Zhou, Chenghu
Lin, Zhouhan
author_facet Song, Yunchong
Huang, Siyuan
Wang, Xinbing
Zhou, Chenghu
Lin, Zhouhan
contents Graph pooling compresses graph information into a compact representation. State-of-the-art graph pooling methods follow a hierarchical approach, which reduces the graph size step-by-step. These methods must balance memory efficiency with preserving node information, depending on whether they use node dropping or node clustering. Additionally, fixed pooling ratios or numbers of pooling layers are predefined for all graphs, which prevents personalized pooling structures from being captured for each individual graph. In this work, inspired by bottom-up grammar induction, we propose an efficient graph parsing algorithm to infer the pooling structure, which then drives graph pooling. The resulting Graph Parsing Network (GPN) adaptively learns personalized pooling structure for each individual graph. GPN benefits from the discrete assignments generated by the graph parsing algorithm, allowing good memory efficiency while preserving node information intact. Experimental results on standard benchmarks demonstrate that GPN outperforms state-of-the-art graph pooling methods in graph classification tasks while being able to achieve competitive performance in node classification tasks. We also conduct a graph reconstruction task to show GPN's ability to preserve node information and measure both memory and time efficiency through relevant tests.
format Preprint
id arxiv_https___arxiv_org_abs_2402_14393
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Graph Parsing Networks
Song, Yunchong
Huang, Siyuan
Wang, Xinbing
Zhou, Chenghu
Lin, Zhouhan
Machine Learning
Graph pooling compresses graph information into a compact representation. State-of-the-art graph pooling methods follow a hierarchical approach, which reduces the graph size step-by-step. These methods must balance memory efficiency with preserving node information, depending on whether they use node dropping or node clustering. Additionally, fixed pooling ratios or numbers of pooling layers are predefined for all graphs, which prevents personalized pooling structures from being captured for each individual graph. In this work, inspired by bottom-up grammar induction, we propose an efficient graph parsing algorithm to infer the pooling structure, which then drives graph pooling. The resulting Graph Parsing Network (GPN) adaptively learns personalized pooling structure for each individual graph. GPN benefits from the discrete assignments generated by the graph parsing algorithm, allowing good memory efficiency while preserving node information intact. Experimental results on standard benchmarks demonstrate that GPN outperforms state-of-the-art graph pooling methods in graph classification tasks while being able to achieve competitive performance in node classification tasks. We also conduct a graph reconstruction task to show GPN's ability to preserve node information and measure both memory and time efficiency through relevant tests.
title Graph Parsing Networks
topic Machine Learning
url https://arxiv.org/abs/2402.14393