LAD-RAG: Layout-aware Dynamic RAG for Visually-Rich Document Understanding. - Zhivar Sourati; Zheng Wang; Marianne Menglin Liu; Yazhe Hu; Mengqing Guo; Sujeeth Bharadwaj; Kyu J. Han; Tao Sheng; Sujith Ravi; Morteza Dehghani; Dan Roth 001 (CoRR, 2025)