LLM-Powered Text-Attributed Graph Anomaly Detection via Retrieval-Augmented Reasoning

arXiv — cs.LGTuesday, November 25, 2025 at 5:00:00 AM
  • A new benchmark for anomaly detection in text-attributed graphs (TAGs) has been introduced, named TAG-AD. This benchmark utilizes large language models (LLMs) to generate realistic anomalous node texts, enhancing the evaluation of graph anomaly detection methods. The focus is on producing anomalies that are semantically coherent yet contextually inconsistent, reflecting real-world irregularities.
  • The development of TAG-AD is significant as it addresses the lack of standardized datasets for TAGs, which are crucial for applications like fraud detection and misinformation analysis. By providing a comprehensive evaluation framework, it aims to improve the effectiveness of existing unsupervised GNN-based methods in detecting anomalies.
  • This advancement highlights a growing trend in AI research towards integrating LLMs with graph-based approaches, as seen in various frameworks that enhance reasoning capabilities and safety evaluations. The interplay between LLMs and graph neural networks (GNNs) is becoming increasingly relevant, raising questions about their effectiveness in interpreting complex data structures and the implications for future AI applications.
— via World Pulse Now AI Editorial System

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