Why the performance of GAT in paper is so low?

[wenhaozheng-nju]

The performance of GAT in origin paper is outperform than GraphSage in PPI. Why not you compare GATv2 on PPI?

[urialon]

Hi @wenhaozheng-nju ,
Thank you for your interest in our work!

We haven't tried PPI just because GNNs' results in some papers reach close to 100%, so there might not be much room for improvement.
Thus, we looked for newer and more challenging benchmarks.

However, if you are interested in this particular dataset, it's very easy to run GATv2: take any codebase that evaluates on PPI, and change the GNN type to GATv2:
https://github.com/tech-srl/how_attentive_are_gats#using-gatv2

Best,
Uri