Zhang, Yaoze, Rong Wu, Pinlong Cai, Xiaoman Wang, Guohang Yan, Song Mao, Ding Wang, and Botian Shi. “LeanRAG: Knowledge-Graph-Based Generation With Semantic Aggregation and Hierarchical Retrieval”. Proceedings of the AAAI Conference on Artificial Intelligence 40, no. 41 (March 14, 2026): 34862–34869. Accessed May 15, 2026. https://ojs.aaai.org/index.php/AAAI/article/view/40789.