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arXiv · 2408.06778

Fast-and-Frugal Text-Graph Transformers are Effective Link Predictors

Andrei C. Coman·Christos Theodoropoulos·Marie-Francine Moens·James Henderson
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Abstract

We propose Fast-and-Frugal Text-Graph (FnF-TG) Transformers, a Transformer-based framework that unifies textual and structural information for inductive link prediction in text-attributed knowledge graphs. We demonstrate that, by effectively encoding ego-graphs (1-hop neighbourhoods), we can reduce the reliance on resource-intensive textual encoders. This makes the model both fast at training and inference time, as well as frugal in terms of cost. We perform a comprehensive evaluation on three popular datasets and show that FnF-TG can achieve superior performance compared to previous state-of-the-art methods. We also extend inductive learning to a fully inductive setting, where relations don't rely on transductive (fixed) representations, as in previous work, but are a function of their textual description. Additionally, we introduce new variants of existing datasets, specifically designed to test the performance of models on unseen relations at inference time, thus offering a new test-bench for fully inductive link prediction.

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Andrei C. Coman, Christos Theodoropoulos, Marie-Francine Moens, James Henderson. 2025-06-16. Fast-and-Frugal Text-Graph Transformers are Effective Link Predictors. https://arxiv.org/abs/2408.06778

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