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Graph neural networks (GNNs) find applications in various domains such as computational biology, natural language processing, and computer security. Owing to their popularity, there is an increasing need to explain GNN predictions since…

Machine Learning · Computer Science 2022-11-14 Mert Kosan , Zexi Huang , Sourav Medya , Sayan Ranu , Ambuj Singh

Graph neural networks (GNNs) have various practical applications, such as drug discovery, recommendation engines, and chip design. However, GNNs lack transparency as they cannot provide understandable explanations for their predictions. To…

Machine Learning · Computer Science 2023-06-09 Samidha Verma , Burouj Armgaan , Sourav Medya , Sayan Ranu

Graph neural networks (GNNs) have been widely used in various domains such as social networks, molecular biology, or recommendation systems. Concurrently, different explanations methods of GNNs have arisen to complement its black-box…

Machine Learning · Computer Science 2025-05-14 Gregoire Fournier , Sourav Medya

In recent years, Graph Neural Networks (GNNs) have become successful in molecular property prediction tasks such as toxicity analysis. However, due to the black-box nature of GNNs, their outputs can be concerning in high-stakes…

Machine Learning · Computer Science 2024-10-22 Yinhan He , Zaiyi Zheng , Patrick Soga , Yaozhen Zhu , yushun Dong , Jundong Li

Massive deployment of Graph Neural Networks (GNNs) in high-stake applications generates a strong demand for explanations that are robust to noise and align well with human intuition. Most existing methods generate explanations by…

Machine Learning · Computer Science 2022-07-14 Mohit Bajaj , Lingyang Chu , Zi Yu Xue , Jian Pei , Lanjun Wang , Peter Cho-Ho Lam , Yong Zhang

Graph-structured data are pervasive in the real-world such as social networks, molecular graphs and transaction networks. Graph neural networks (GNNs) have achieved great success in representation learning on graphs, facilitating various…

Machine Learning · Computer Science 2025-02-27 Zhimeng Guo , Teng Xiao , Zongyu Wu , Charu Aggarwal , Hui Liu , Suhang Wang

Graph Neural Networks (GNNs) perform well in community detection and molecule classification. Counterfactual Explanations (CE) provide counter-examples to overcome the transparency limitations of black-box models. Due to the growing…

Machine Learning · Computer Science 2024-06-12 Mario Alfonso Prado-Romero , Bardh Prenkaj , Giovanni Stilo , Fosca Giannotti

Deep graph learning models have demonstrated remarkable capabilities in processing graph-structured data and have been widely applied across various fields. However, their complex internal architectures and lack of transparency make it…

Machine Learning · Computer Science 2026-01-27 Jinlong Hu , Jiacheng Liu

Hypergraph neural networks (HGNNs) effectively model higher-order interactions in many real-world systems but remain difficult to interpret, limiting their deployment in high-stakes settings. We introduce CF-HyperGNNExplainer, a…

Machine Learning · Computer Science 2026-05-26 Fabiano Veglianti , Lorenzo Antonelli , Gabriele Tolomei

Given the increasing promise of graph neural networks (GNNs) in real-world applications, several methods have been developed for explaining their predictions. Existing methods for interpreting predictions from GNNs have primarily focused on…

Machine Learning · Computer Science 2022-02-24 Ana Lucic , Maartje ter Hoeve , Gabriele Tolomei , Maarten de Rijke , Fabrizio Silvestri

Structural data well exists in Web applications, such as social networks in social media, citation networks in academic websites, and threads data in online forums. Due to the complex topology, it is difficult to process and make use of the…

Information Retrieval · Computer Science 2022-05-12 Juntao Tan , Shijie Geng , Zuohui Fu , Yingqiang Ge , Shuyuan Xu , Yunqi Li , Yongfeng Zhang

Counterfactual explanations have emerged as a powerful tool to unveil the opaque decision-making processes of graph neural networks (GNNs). However, existing techniques primarily focus on edge modifications, often overlooking the crucial…

Machine Learning · Computer Science 2025-02-17 Flavio Giorgi , Fabrizio Silvestri , Gabriele Tolomei

Counterfactual explanations offer an intuitive way to interpret graph neural networks (GNNs) by identifying minimal changes that alter a model's prediction, thereby answering "what must differ for a different outcome?". In this work, we…

Machine Learning · Computer Science 2026-02-09 Yu Zhang , Sean Bin Yang , Arijit Khan , Cuneyt Gurcan Akcora

Counterfactual explanations of Graph Neural Networks (GNNs) offer a powerful way to understand data that can naturally be represented by a graph structure. Furthermore, in many domains, it is highly desirable to derive data-driven global…

Machine Learning · Computer Science 2024-06-21 Danqing Wang , Antonis Antoniades , Kha-Dinh Luong , Edwin Zhang , Mert Kosan , Jiachen Li , Ambuj Singh , William Yang Wang , Lei Li

Recently, graph neural networks (GNNs) have been widely used to develop successful recommender systems. Although powerful, it is very difficult for a GNN-based recommender system to attach tangible explanations of why a specific item ends…

Information Retrieval · Computer Science 2022-08-09 Ziheng Chen , Fabrizio Silvestri , Jia Wang , Yongfeng Zhang , Zhenhua Huang , Hongshik Ahn , Gabriele Tolomei

Graph Neural Networks (GNNs) are a powerful tool for machine learning on graphs.GNNs combine node feature information with the graph structure by recursively passing neural messages along edges of the input graph. However, incorporating…

Machine Learning · Computer Science 2019-11-15 Rex Ying , Dylan Bourgeois , Jiaxuan You , Marinka Zitnik , Jure Leskovec

Counterfactuals have been established as a popular explainability technique which leverages a set of minimal edits to alter the prediction of a classifier. When considering conceptual counterfactuals on images, the edits requested should…

Machine Learning · Computer Science 2024-05-06 Angeliki Dimitriou , Nikolaos Chaidos , Maria Lymperaiou , Giorgos Stamou

Graph neural networks have shown great ability in representation (GNNs) learning on graphs, facilitating various tasks. Despite their great performance in modeling graphs, recent works show that GNNs tend to inherit and amplify the bias…

Machine Learning · Computer Science 2023-08-22 Zhimeng Guo , Jialiang Li , Teng Xiao , Yao Ma , Suhang Wang

Graph Neural Networks (GNNs) have been successful in modeling graph-structured data. However, similar to other machine learning models, GNNs can exhibit bias in predictions based on attributes like race and gender. Moreover, bias in GNNs…

Machine Learning · Computer Science 2025-08-21 Zengyi Wo , Chang Liu , Yumeng Wang , Minglai Shao , Wenjun Wang

Counterfactual Explanation (CE) techniques have garnered attention as a means to provide insights to the users engaging with AI systems. While extensively researched in domains such as medical imaging and autonomous vehicles, Graph…

Machine Learning · Computer Science 2024-01-12 Mario Alfonso Prado-Romero , Bardh Prenkaj , Giovanni Stilo
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