Meaning of videos ids start with "grp"

facebookresearch / ego4d-goalstep

Ego4D Goal-Step: Toward Hierarchical Understanding of Procedural Activities (NeurIPS 2023)

MIT License

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Meaning of videos ids start with "grp" #9

Closed hyf015 closed 7 months ago

hyf015 commented 7 months ago

Hi, thank you very much for the release of this dataset! Just a quick question, I wonder what the video IDs that start with "grp-" mean in the annotation files?

yalesong commented 7 months ago

Hi Yifei!

When annotating goal-step, we realized some of the videos from Ego4D could be concatenated back-to-back to provide longer storyline. This was important for goal-step annotation as having long temporal context is beneficial for identifying goals and steps. Hope this clarifies!