Micky C. Nnamdi Benoit Louis Marteau Yishan Zhong J. Ben Tamo May D. Wang Tree-of-Evidence: Efficient "System 2" Search for Faithful Multimodal Grounding. 2026 April abs/2604.07692 CoRR https://doi.org/10.48550/arXiv.2604.07692 db/journals/corr/corr2604.html#abs-2604-07692 streams/journals/corr