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Ping Xiong

2 accepted papers

2023

Relevant Walk Search for Explaining Graph Neural Networks

ICML 2023poster

Graph Neural Networks (GNNs) have become important machine learning tools for graph analysis, and its explainability is crucial for safety, fairness, and robustness. Layer-wise relevance propagation for GNNs (GNN-LRP) evaluates the relevance of walks to reveal important information flows in the netw…

2022

Efficient Computation of Higher-Order Subgraph Attribution via Message Passing

ICML 2022spotlight

Explaining graph neural networks (GNNs) has become more and more important recently. Higher-order interpretation schemes, such as GNN-LRP (layer-wise relevance propagation for GNN), emerged as powerful tools for unraveling how different features interact thereby contributing to explaining GNNs. GNN-…