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In Graph Neural Networks (GNNs), the graph structure is incorporated into the learning of node representations. This complex structure makes explaining GNNs' predictions become much more challenging. In this paper, we propose PGM-Explainer,…

Machine Learning · Computer Science 2020-10-13 Minh N. Vu , My T. Thai

Graphical models capture relations between entities in a wide range of applications including social networks, biology, and natural language processing, among others. Graph neural networks (GNN) are neural models that operate over graphs,…

Machine Learning · Computer Science 2024-02-08 Xu Zheng , Farhad Shirani , Tianchun Wang , Shouwei Gao , Wenqian Dong , Wei Cheng , Dongsheng Luo

Graph Neural Networks (GNNs) achieve outstanding performance across graph-based tasks but remain difficult to interpret. In this paper, we revisit foundational assumptions underlying model-level explanation methods for GNNs, namely: (1)…

Machine Learning · Computer Science 2025-06-10 Hsiao-Ying Lu , Yiran Li , Ujwal Pratap Krishna Kaluvakolanu Thyagarajan , Kwan-Liu Ma

Graph Neural Networks (GNNs) have emerged as powerful tools for learning representations of graph-structured data, demonstrating remarkable performance across various tasks. Recognising their importance, there has been extensive research…

Machine Learning · Computer Science 2025-01-06 Akshit Sinha , Sreeram Vennam , Charu Sharma , Ponnurangam Kumaraguru

Graph generation plays a pivotal role across numerous domains, including molecular design and knowledge graph construction. Although existing methods achieve considerable success in generating realistic graphs, their interpretability…

Machine Learning · Computer Science 2025-07-18 Yuanxin Zhuang , Dazhong Shen , Ying Sun

Enhancing the interpretability of graph neural networks (GNNs) is crucial to ensure their safe and fair deployment. Recent work has introduced self-explainable GNNs that generate explanations as part of training, improving both faithfulness…

Machine Learning · Computer Science 2025-08-18 Fanzhen Liu , Xiaoxiao Ma , Jian Yang , Alsharif Abuadbba , Kristen Moore , Surya Nepal , Cecile Paris , Quan Z. Sheng , Jia Wu

The pursuit of automated scientific discovery has fueled progress from symbolic logic to modern AI, forging new frontiers in reasoning and pattern recognition. Transformers function as potential systems, where every possible relationship…

Artificial Intelligence · Computer Science 2025-01-15 Markus J. Buehler

Generating realistic graph-structured data is challenging due to discrete structures, variable sizes, and class-specific connectivity patterns that resist conventional generative modelling. While recent graph generation methods employ…

Machine Learning · Computer Science 2026-02-02 Seyedeh Ava Razi Razavi , James Sargant , Sheridan Houghten , Renata Dividino

Graph Neural Networks (GNNs) have become a powerful tool for modeling and analyzing data with graph structures. The wide adoption in numerous applications underscores the value of these models. However, the complexity of these methods often…

Artificial Intelligence · Computer Science 2025-12-10 Tien Cuong Bui

Deep generative models have been praised for their ability to learn smooth latent representation of images, text, and audio, which can then be used to generate new, plausible data. However, current generative models are unable to work with…

Machine Learning · Computer Science 2019-09-09 Bidisha Samanta , Abir De , Gourhari Jana , Pratim Kumar Chattaraj , Niloy Ganguly , Manuel Gomez-Rodriguez

Large language models (LLMs) often suffer from hallucination, generating factually incorrect statements when handling questions beyond their knowledge and perception. Retrieval-augmented generation (RAG) addresses this by retrieving…

Computation and Language · Computer Science 2025-11-18 Shengyuan Chen , Chuang Zhou , Zheng Yuan , Qinggang Zhang , Zeyang Cui , Hao Chen , Yilin Xiao , Jiannong Cao , Xiao Huang

This paper studies causal inference with observational data from a single large network. We consider a nonparametric model with interference in both potential outcomes and selection into treatment. Specifically, both stages may be the…

Econometrics · Economics 2025-12-30 Michael P. Leung , Pantelis Loupos

Graph Neural Networks (GNNs) have become a building block in graph data processing, with wide applications in critical domains. The growing needs to deploy GNNs in high-stakes applications necessitate explainability for users in the…

Graph Transformers (GTs) have emerged as a promising graph learning tool, leveraging their all-pair connected property to effectively capture global information. To address the over-smoothing problem in deep GNNs, global attention was…

Machine Learning · Computer Science 2025-12-17 Chaohao Yuan , Zhenjie Song , Ercan Engin Kuruoglu , Kangfei Zhao , Yang Liu , Deli Zhao , Hong Cheng , Yu Rong

We establish conditions under which latent causal graphs are nonparametrically identifiable and can be reconstructed from unknown interventions in the latent space. Our primary focus is the identification of the latent structure in…

Machine Learning · Statistics 2023-11-06 Yibo Jiang , Bryon Aragam

Rationale discovery is defined as finding a subset of the input data that maximally supports the prediction of downstream tasks. In the context of graph machine learning, graph rationale is defined to locate the critical subgraph in the…

Machine Learning · Computer Science 2025-01-28 Zhe Xu , Menghai Pan , Yuzhong Chen , Huiyuan Chen , Yuchen Yan , Mahashweta Das , Hanghang Tong

Retrieval-Augmented Generation (RAG) enhances language models by grounding responses in external information, yet explainability remains a critical challenge, particularly when retrieval relies on unstructured text. Knowledge graphs (KGs)…

Machine Learning · Computer Science 2025-07-14 Georgios Balanos , Evangelos Chasanis , Konstantinos Skianis , Evaggelia Pitoura

Graph neural networks (GNNs) are powerful tools for conducting inference on graph data but are often seen as "black boxes" due to difficulty in extracting meaningful subnetworks driving predictive performance. Many interpretable GNN methods…

Machine Learning · Statistics 2024-12-17 Whitney Sloneker , Shalin Patel , Michael Wang , Lorin Crawford , Ritambhara Singh

Most of the current explainability techniques focus on capturing the importance of features in input space. However, given the complexity of models and data-generating processes, the resulting explanations are far from being `complete', in…

Computer Vision and Pattern Recognition · Computer Science 2022-07-06 Avinash Kori , Ben Glocker , Francesca Toni

Causal structure learning has been a challenging task in the past decades and several mainstream approaches such as constraint- and score-based methods have been studied with theoretical guarantees. Recently, a new approach has transformed…

Machine Learning · Computer Science 2019-11-19 Ignavier Ng , Shengyu Zhu , Zhitang Chen , Zhuangyan Fang