Naveen Kumar Siripuram, Manish Tomar, and Amsa Selvaraj. “Multi-Hop Reasoning Enhancement in Retrieval-Augmented Generation Using Hierarchical Graph Neural Networks”. American Journal of Data Science and Artificial Intelligence Innovations 1 (April 28, 2021): 350–383. Accessed March 7, 2026. https://ajdsai.org/index.php/publication/article/view/48.