ResearchResearch paperInterpretability · Computer Vision · Multimodal Models1 source · Oct 18, 2026

Sufficient Frame Subsets for Video Understanding

We introduce Sufficient Frame Subsets: compact sets of frames in which all other frames are masked, yet each subset independently preserves the model's prediction.

Key points

  • Understanding when during a video a model makes its critical observations is essential for interpreting video-understanding systems.
  • We evaluate our method on two complementary benchmarks, UCF101 and Something-Something v2, using both CNN- and transformer-based architectures.
  • Our results show that the proposed algorithm identifies highly compact and effective frame subsets for explaining model decisions.
  • Finally, the extracted frame subsets help us analyze model failure cases, reveal which aspects of a video the model has learned to emphasize, and identify opportunities for improving future training procedures.

Sources (1)

  • [1]Sufficient Frame Subsets for Video Understanding
    arXiv (AI, ML, NLP, CV, robotics, multi-agent) · Oct 18, 07:47 AM
    We introduce Sufficient Frame Subsets: compact sets of frames in which all other frames are masked, yet each subset independently preserves the model's prediction.
    Understanding when during a video a model makes its critical observations is essential for interpreting video-understanding systems.

Extractive summary: sentences quoted from the sources.

Before this

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  2. Oct 16, 2026nvidia/NVIDIA-Nemotron-Labs-Dory1.0-4B-MXFP8
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  4. Oct 15, 2026Granite Switch 4.1: Chat, Decisions, and Speech from One Endpoint
  5. Oct 15, 2026When Plans Change, Remember: Replanning-Guided Visual Memory for Vision-Language-Action Models
  6. Oct 15, 2026huggingface/transformers v5.20.0: Release v5.20.0

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