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arXiv 2610.18535cs.CV
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Meta-Video:视频理解的高效标准化评估

Meta-Video: Efficient Standardized Evaluation for Video Understanding

University of Tübingen(蒂宾根大学);Max Planck Institute for Informatics(马克斯·普朗克信息学研究所);IBM Research(IBM研究院);MIT(麻省理工学院);MIT-IBM Watson AI Lab(麻省理工学院-IBM沃森人工智能实验室);Tübingen AI Center(蒂宾根人工智能中心)

Soumya Shamarao Jahagirdar, Anna Kukleva, Vishaal Udandarao, Samuel Thomas, Brian Kingsbury, Rogerio Feris, James R. Glass, Ameya Prabhu, Hilde Kuehne

AI总结:

该研究针对视频理解基准评估中存在的配置方差、样本无效等问题,构建了Meta-Video基准并建立标准化评估协议,提升评估效率与可靠性。

摘要:

视频理解基准是衡量视频-语言建模进展的主要标准,越来越多的研究工作依赖这些基准来宣称取得了改进。然而,这些工作中报告的基准分数几乎总是由作为黑盒使用的框架(例如lmms eval)生成的:某些评估选择,如帧采样、预处理和输入格式,是从预设默认值继承而来的,很少被仔细检查。我们表明,这些未被检查的选择是方差的主要来源。即使对于相同的模型检查点,仅评估配置就可以使准确率变化高达19.5个百分点。因此,目前尚不清楚报告的提升是反映了能力的真正进步还是评估设置的差异。此外,许多基准样本几乎没有提供视觉能力的证据,因为它们可以不依赖视频来回答,而且完整的基准套件评估成本高昂。我们从两个部分解决这些问题。首先,我们针对可区分性和效率整理现有套件,生成Meta-Video,这是一个包含1000个问题、791个视频的平衡基准,涵盖不同的任务和时长,在全帧计数扫描实验(4-128帧)中实现了5倍的推理加速,同时在很大程度上保留了模型排名。其次,我们通过扫描配置空间以分离可测量影响结果的选择,将其提炼为最佳实践和报告标准,并发布了五个模型和七个基准的可复现参考分数,从而建立了标准化评估协议。我们希望所提出的评估框架和Meta-Video基准能够为视频理解研究提供可复现且高效的基础,以可靠的方式衡量进展。

英文摘要:

Video understanding benchmarks are the primary yardstick for measuring progress in video-language modeling, and a growing body of work relies on them to claim improvements. The reported benchmark scores in these works, however, are almost always produced by frameworks (e.g., lmms eval) used as black boxes: certain evaluation choices like frame sampling, preprocessing, and input formatting are inherited from preset defaults and seldom inspected carefully. We show these unexamined choices are a major source of variance. Even for the same model checkpoint, evaluation configuration alone can shift accuracy by up to 19.5pp. Hence, it is unclear whether reported gains reflect genuine improvements in capability or differences in evaluation setup. Moreover, many benchmark samples offer little evidence of visual capability, since they can be answered without the video, and the full suites are expensive to evaluate. We address these issues in two parts. First, we curate existing suites for discriminability and efficiency, producing Meta-Video, a balanced 1,000-question benchmark over 791 videos spanning diverse tasks and durations, which largely preserves model rankings, at 5 times inference speedup for a full-frame count sweep experiment (4-128 frames). Second, we establish a standardized evaluation protocol by sweeping the configuration space to isolate choices that measurably affect results, distill them into best practices and reporting standards, and release reproducible reference scores across five models and seven benchmarks. We hope that the proposed evaluation framework and the Meta-Video benchmark will support video understanding research by providing a reproducible and efficient foundation to measure progress in a reliable way. Project page: https://soumyasj.github.io/meta-video/

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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