XU, Jun et al. Thinker: Training LLMs in Hierarchical Thinking for Deep Search via Multi-Turn Interaction. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 40, n. 40, p. 34142–34150, 2026. DOI: 10.1609/aaai.v40i40.40709. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/40709. Acesso em: 15 may. 2026.