Search Results for author: Yazheng Liu

Found 5 papers, 2 papers with code

A Differential Geometric View and Explainability of GNN on Evolving Graphs

no code implementations11 Mar 2024 Yazheng Liu, Xi Zhang, Sihong Xie

Graphs are ubiquitous in social networks and biochemistry, where Graph Neural Networks (GNN) are the state-of-the-art models for prediction.

Graph Classification Link Prediction +1

Multi-objective Explanations of GNN Predictions

no code implementations29 Nov 2021 Yifei Liu, Chao Chen, Yazheng Liu, Xi Zhang, Sihong Xie

We design a user study to investigate such joint effects and use the findings to design a multi-objective optimization (MOO) algorithm to find Pareto optimal explanations that are well-balanced in simulatability and counterfactual.

counterfactual Decision Making +1

Explaining GNN over Evolving Graphs using Information Flow

no code implementations19 Nov 2021 Yazheng Liu, Xi Zhang, Sihong Xie

We define the problem of explaining evolving GNN predictions and propose an axiomatic attribution method to uniquely decompose the change in a prediction to paths on computation graphs.

Knowledge Graphs

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