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Autori principali: Zhang, Ruixu, Ji, Deyi, Zhu, Lanyun, Liu, Xuanyi, Meng, Yuxin, Chu, Ruihang, Yang, Yujiu
Natura: Preprint
Pubblicazione: 2026
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Accesso online:https://arxiv.org/abs/2605.14733
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author Zhang, Ruixu
Ji, Deyi
Zhu, Lanyun
Liu, Xuanyi
Meng, Yuxin
Chu, Ruihang
Yang, Yujiu
author_facet Zhang, Ruixu
Ji, Deyi
Zhu, Lanyun
Liu, Xuanyi
Meng, Yuxin
Chu, Ruihang
Yang, Yujiu
contents Self-evolution offers a promising path for improving reasoning models without relying on intensive human annotation. However, extending this paradigm to video understanding remains underexplored and challenging: videos are long, dynamic, and redundant, while the evidence needed for reasoning is often sparse and temporally localized. Naively generating difficult question-answer pairs from full videos can therefore produce supervision that appears challenging but is weakly grounded, relying on static cues or language priors rather than temporal evidence. In this work, we argue that the key bottleneck of video self-evolution is not difficulty alone, but grounding. We propose Video-Zero, an annotation-free Questioner--Solver co-evolution framework that centers self-evolution on temporally localized evidence. The Questioner discovers informative evidence segments and generates evidence-grounded questions, while the Solver learns to answer and align its predictions with the supporting evidence. This closes an iterative loop of evidence discovery, grounded supervision, and evidence-aligned learning. Across 13 benchmarks spanning temporal grounding, long-video understanding, and video reasoning, Video-Zero consistently improves multiple video VLM backbones, demonstrating the effectiveness and transferability of evidence-centered self-evolution.
format Preprint
id arxiv_https___arxiv_org_abs_2605_14733
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Video-Zero: Self-Evolution Video Understanding
Zhang, Ruixu
Ji, Deyi
Zhu, Lanyun
Liu, Xuanyi
Meng, Yuxin
Chu, Ruihang
Yang, Yujiu
Computer Vision and Pattern Recognition
Self-evolution offers a promising path for improving reasoning models without relying on intensive human annotation. However, extending this paradigm to video understanding remains underexplored and challenging: videos are long, dynamic, and redundant, while the evidence needed for reasoning is often sparse and temporally localized. Naively generating difficult question-answer pairs from full videos can therefore produce supervision that appears challenging but is weakly grounded, relying on static cues or language priors rather than temporal evidence. In this work, we argue that the key bottleneck of video self-evolution is not difficulty alone, but grounding. We propose Video-Zero, an annotation-free Questioner--Solver co-evolution framework that centers self-evolution on temporally localized evidence. The Questioner discovers informative evidence segments and generates evidence-grounded questions, while the Solver learns to answer and align its predictions with the supporting evidence. This closes an iterative loop of evidence discovery, grounded supervision, and evidence-aligned learning. Across 13 benchmarks spanning temporal grounding, long-video understanding, and video reasoning, Video-Zero consistently improves multiple video VLM backbones, demonstrating the effectiveness and transferability of evidence-centered self-evolution.
title Video-Zero: Self-Evolution Video Understanding
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2605.14733