ZHANG, S. HiRAG: A Hierarchical Retrieval-Augmented Generation Framework via Intent Routing and Small-Model Refinement. Journal of Artificial Intelligence and Technology, [S. l.], 2026. DOI: 10.37965/jait.2026.1569. Disponível em: https://ojs.istp-press.com/jait/article/view/1569. Acesso em: 6 nov. 2026.