PU, H.; ZHANG, H.; LIU, Y.; CAI, H. Graph Contrastive Learning with Balanced Hard Negatives and Fine-grained Semantic-aware Positives. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 40, n. 29, p. 24873-24881, 2026. DOI: 10.1609/aaai.v40i29.39674. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/39674. Acesso em: 28 apr. 2026.