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In this paper, we investigate the degree of explainability of graph neural networks (GNNs). Existing explainers work by finding global/local subgraphs to explain a prediction, but they are applied after a GNN has already been trained. Here,…

机器学习 · 计算机科学 2022-12-21 Indro Spinelli , Simone Scardapane , Aurelio Uncini

Graph Neural Networks (GNNs) have emerged as powerful tools for predicting outcomes in graph-structured data. However, a notable limitation of GNNs is their inability to provide robust uncertainty estimates, which undermines their…

机器学习 · 计算机科学 2024-10-10 S. Akansha

Graphs are ubiquitous in many applications, such as social networks, knowledge graphs, smart grids, etc.. Graph neural networks (GNN) are the current state-of-the-art for these applications, and yet remain obscure to humans. Explaining the…

机器学习 · 计算机科学 2021-11-22 Yazheng Liu , Xi Zhang , Sihong Xie

Graph Neural Networks (GNNs) excel at modeling relational data but face significant challenges in high-stakes domains due to unquantified uncertainty. Conformal prediction (CP) offers statistical coverage guarantees, but existing methods…

机器学习 · 计算机科学 2025-06-10 Zheng Zhang , Jie Bao , Zhixin Zhou , Nicolo Colombo , Lixin Cheng , Rui Luo

Graph Neural Networks (GNNs) with numerical node features and graph structure as inputs have demonstrated superior performance on various supervised learning tasks with graph data. However the numerical node features utilized by GNNs are…

机器学习 · 计算机科学 2022-06-20 Jiuhai Chen , Jonas Mueller , Vassilis N. Ioannidis , Tom Goldstein , David Wipf

Graph neural networks (GNNs) have demonstrated a significant boost in prediction performance on graph data. At the same time, the predictions made by these models are often hard to interpret. In that regard, many efforts have been made to…

机器学习 · 计算机科学 2023-05-24 Yiqiao Li , Jianlong Zhou , Sunny Verma , Fang Chen

Graph Neural Networks (GNNs) have gained considerable traction for their capability to effectively process topological data, yet their interpretability remains a critical concern. Current interpretation methods are dominated by post-hoc…

机器学习 · 计算机科学 2024-02-08 Jiahua Rao , Jiancong Xie , Hanjing Lin , Shuangjia Zheng , Zhen Wang , Yuedong Yang

We consider the explanation problem of Graph Neural Networks (GNNs). Most existing GNN explanation methods identify the most important edges or nodes but fail to consider substructures, which are more important for graph data. The only…

机器学习 · 计算机科学 2023-02-28 Zhaoning Yu , Hongyang Gao

Graph Neural Networks (GNNs) have attracted increasing attention in recent years and have achieved excellent performance in semi-supervised node classification tasks. The success of most GNNs relies on one fundamental assumption, i.e., the…

机器学习 · 计算机科学 2024-12-03 Junchao Lin , Yuan Wan , Jingwen Xu , Xingchen Qi

Current graph neural networks (GNNs) lack generalizability with respect to scales (graph sizes, graph diameters, edge weights, etc..) when solving many graph analysis problems. Taking the perspective of synthesizing graph theory programs,…

机器学习 · 计算机科学 2020-10-27 Hao Tang , Zhiao Huang , Jiayuan Gu , Bao-Liang Lu , Hao Su

As one of the most popular machine learning models today, graph neural networks (GNNs) have attracted intense interest recently, and so does their explainability. Users are increasingly interested in a better understanding of GNN models and…

机器学习 · 计算机科学 2024-05-24 Kenza Amara , Rex Ying , Zitao Zhang , Zhihao Han , Yinan Shan , Ulrik Brandes , Sebastian Schemm , Ce Zhang

Graph Neural Networks (GNNs) excel at learning from structured data, yet fairness in regression tasks remains underexplored. Existing approaches mainly target classification and representation-level debiasing, which cannot fully address the…

机器学习 · 计算机科学 2025-10-24 Soyoung Park , Sungsu Lim

Graph Neural Networks (GNNs) excel in graph-based learning tasks, but their complex, non-linear operations often render them as opaque "black boxes". This opacity hinders user trust, complicates debugging, bias detection, and adoption in…

人工智能 · 计算机科学 2025-11-18 TC Singh , Sougata Mukherjea

Graph Visualization, also known as Graph Drawing, aims to find geometric embeddings of graphs that optimize certain criteria. Stress is a widely used metric; stress is minimized when every pair of nodes is positioned at their shortest path…

计算几何 · 计算机科学 2024-02-13 Florian Grötschla , Joël Mathys , Robert Veres , Roger Wattenhofer

Graph neural networks (GNNs) have recently emerged as a dominant paradigm for machine learning with graphs. Research on GNNs has mainly focused on the family of message passing neural networks (MPNNs). Similar to the Weisfeiler-Leman (WL)…

机器学习 · 统计学 2022-07-05 Giannis Nikolentzos , George Dasoulas , Michalis Vazirgiannis

Graph Neural Networks (GNNs) have enjoyed wide spread applications in graph-structured data. However, existing graph based applications commonly lack annotated data. GNNs are required to learn latent patterns from a limited amount of…

机器学习 · 计算机科学 2023-03-22 Wenqi Wei , Mu Qiao , Divyesh Jadav

Despite the Graph Neural Networks' (GNNs) proficiency in analyzing graph data, achieving high-accuracy and interpretable predictions remains challenging. Existing GNN interpreters typically provide post-hoc explanations disjointed from…

机器学习 · 计算机科学 2024-07-26 Zhenhua Huang , Kunhao Li , Shaojie Wang , Zhaohong Jia , Wentao Zhu , Sharad Mehrotra

Graph neural networks (GNNs) are powerful tools on graph data. However, their predictions are mis-calibrated and lack interpretability, limiting their adoption in critical applications. To address this issue, we propose a new…

机器学习 · 计算机科学 2025-08-26 Lingkai Kong , Haotian Sun , Yuchen Zhuang , Haorui Wang , Wenhao Mu , Chao Zhang

Graph Neural Networks (GNNs) are a powerful technique for machine learning on graph-structured data, yet they pose challenges in interpretability. Existing GNN explanation methods usually yield technical outputs, such as subgraphs and…

机器学习 · 计算机科学 2025-04-09 Mateusz Cedro , David Martens

Deep learning methods are achieving ever-increasing performance on many artificial intelligence tasks. A major limitation of deep models is that they are not amenable to interpretability. This limitation can be circumvented by developing…

机器学习 · 计算机科学 2022-07-05 Hao Yuan , Haiyang Yu , Shurui Gui , Shuiwang Ji