When Should RAG Use Graphs? Complexity-Aware GraphRAG Routing and Answer Quality Prediction on GraphRAG-Bench-H. Journal of Global Engineering Review, [S. l.], v. 4, n. 2, p. 65–82, 2026. DOI: 10.66372/JGER.V4I2.5. Disponível em: https://gereview.com/index.php/jger/article/view/51. Acesso em: 17 sep. 2026.