QIN, Fujing. Proxy-Cost-Aware Explainable Graph Neural Network for Multi-Domain O&M Decision Support in Digital Twin-Enabled Smart-City IoT Systems. EAI Endorsed Transactions on Energy Web, [S. l.], v. 13, 2026. DOI: 10.4108/ew.14036. Disponível em: https://publications.eai.eu/index.php/ew/article/view/14036. Acesso em: 18 aug. 2026.