most citedWhy Do MLLMs Struggle with Spatial Understanding? A Systematic Analysis from Data to Architecture

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cs.CL2026

BiCAA: Bidirectional Credit Assignment for Search-Augmented Agent

Yibin Huang, Bin Xu, Hailong Cao +1

Multi-step search is a fundamental capability for search agents, enabling them to iteratively acquire, refine, and integrate external evidence for complex reasoning QA. However, va…