New protocol for GNN cross-task transfer reveals directional predictability

Researchers have developed a new protocol to reliably evaluate cross-task transfer in Graph Neural Networks (GNNs) for node classification (NC) and link prediction (LP) tasks. Their findings indicate that transfer from NC to LP is generally beneficial, especially on homophilic graphs, while LP to NC transfer is less consistent and can sometimes degrade performance. The study also introduces the CoTask Score (CTS) to measure joint utility and suggests that simple dataset statistics, like homophily, can help predict and mitigate negative transfer. AI

IMPACT Establishes a more reliable framework for evaluating GNN transfer learning, potentially improving model efficiency and performance on multi-task graph problems.

RANK_REASON Academic paper detailing a new protocol and findings for GNNs. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.LG →

• GraphSAGE
• link prediction
• node classification

• paper
• model release

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