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GridProbe: Posterior-Probing for Adaptive Test-Time Compute in Long-Video VLMs
GridProbe scores frame evidence via frozen VLM answer-space probing and adaptive selection to reduce long-video attention costs with minimal accuracy loss. It matches monolithic baselines on Video-MME-v2 at 3.36x lower compute and Pareto-dominates baselines on LongVideoBench.
Sydney Poster Session 6, Thu, Dec 10, 5:00 PM–8:00 PM, Hall 1-4 · Published 2026 · ▲ 2 on Hugging Face · Code ★ 2
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strict 1/5