Preprint
Sep 2026
The Shape of Time: Video-Token Contrast for Temporal Understanding in VideoLMs
VT-Contrast supervises selected late-layer last-frame video tokens, where temporal information is expected to be integrated before language generation, and contrasts order-preserving views with same-video reordered counterfactuals graded by Kendall tau distance.
Yu-Meng Shi, Quan-Yu Long, Yin Wu et al.
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