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arXiv 2603.10033cs.CLcs.AI
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评估图基础模型的进展:一个全面的基准和新见解

Evaluating Progress in Graph Foundation Models: A Comprehensive Benchmark and New Insights

Xingtong Yu, Shenghua Ye, Ruijuan Liang, Chang Zhou, Hong Cheng, Xinming Zhang, Yuan Fang

AI总结:

本文提出一个全面的图基础模型基准,评估主题和格式双维度的转移能力,揭示了GFM在多领域适应中的新发现。

摘要:

图基础模型(GFM)旨在通过在多样化的图上预训练来获取可转移的知识,可以适应各种下游任务。然而,图中的领域转移本质上是二维的:图不仅在描述的内容(主题领域)上不同,还在表示方式(格式领域)上不同。大多数现有的GFM基准只变化主题领域,因此模糊了知识在两个维度上的转移。我们提出一个新的基准,该基准在完整的GFM流程中联合评估主题和格式差距,包括多领域自监督预训练和少样本下游适应,并提供对最近GFM在快速演变的领域中的及时评估。我们的协议使在四种设置中能够进行受控评估:(i)在多样化的主题和格式上预训练,同时适应未见过的下游数据集;(ii)与(i)相同的预训练,同时适应已见过的数据集;(iii)在单一主题领域上预训练,同时适应其他主题;(iv)在基础格式上预训练,同时适应其他格式。这种双轴评估将语义泛化与对表示转移的鲁棒性区分开来。我们在33个数据集上对八种最先进的GFM进行了广泛的评估,覆盖七个主题领域和六个格式领域,揭示了新的经验观察和实用见解,为未来研究提供参考。代码和数据可在https://github.com/smufang/GFMBenchmark上获取。

英文摘要:

Graph foundation models (GFM) aim to acquire transferable knowledge by pre-training on diverse graphs, which can be adapted to various downstream tasks. However, domain shift in graphs is inherently two-dimensional: graphs differ not only in what they describe (topic domains) but also in how they are represented (format domains). Most existing GFM benchmarks vary only topic domains, thereby obscuring how knowledge transfers across both dimensions. We present a new benchmark that jointly evaluates topic and format gaps across the full GFM pipeline, including multi-domain self-supervised pre-training and few-shot downstream adaptation, and provides a timely evaluation of recent GFMs in the rapidly evolving landscape. Our protocol enables controlled assessment in four settings: (i) pre-training on diverse topics and formats, while adapting to unseen downstream datasets; (ii) same pre-training as in (i), while adapting to seen datasets; (iii) pre-training on a single topic domain, while adapting to other topics; (iv) pre-training on a base format, while adapting to other formats. This two-axis evaluation disentangles semantic generalization from robustness to representational shifts. We conduct extensive evaluations of eight state-of-the-art GFMs on 33 datasets spanning seven topic domains and six format domains, surfacing new empirical observations and practical insights for future research. Codes/data are available at https://github.com/smufang/GFMBenchmark.

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。

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