MARA: A Multimodal Adaptive Retrieval-Augmented Framework for Document Question Answering. - Hui Wu; Haoquan Zhai; Yuchen Li 006; Hengyi Cai; Peirong Zhang 002; Yidan Zhang; Lei Wang 265; Chunle Wang; Yingyan Hou; Shuaiqiang Wang; Dawei Yin 001 (ACM Multimedia, 2025)