activitynet / ActivityNet

This repository is intended to host tools and demos for ActivityNet
MIT License
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Annotation with length 0 or 0.01 #56

Closed yhZhai closed 5 years ago

yhZhai commented 5 years ago

Hi, I am doing plot about the annotation length on activitynet v1.3 using the JSON file downloaded from your website. I accidentally find that some of the annotation length are 0 or 0.01. For example, video 'F_EHrfbYsRE' has annotation {'segment': [0.01, 0.02], 'label': 'Running a marathon'}, video 'r96PJ548pn8' has annotation {'segment': [0.01, 0.02], 'label': 'Doing crunches'}, video 'ZZVrH3Hv1fM' has annotation {'segment': [0, 0], 'label': 'Washing hands'}.

Is the JSON file correct? And why these annotation exist? Thank you in advance~

frostinassiky commented 5 years ago

Thank you, we are investigating. Please note that these kinds of annotations only represent 0.3% of the dataset.

You can consider filtering those annotations from the training.

On Sat, 14 Sep 2019 at 18:16 Yuanhao Zhai notifications@github.com wrote:

Hi, I am doing plot about the annotation length on activitynet v1.3 using the JSON file downloaded from your website. I accidentally find that some of the annotation length are 0 or 0.01. For example, video 'F_EHrfbYsRE' has annotation {'segment': [0.01, 0.02], 'label': 'Running a marathon'}, video 'r96PJ548pn8' has annotation {'segment': [0.01, 0.02], 'label': 'Doing crunches'}, video 'ZZVrH3Hv1fM' has annotation {'segment': [0, 0], 'label': 'Washing hands'}. Is the JSON file correct? And why these annotation exist? Thank you in advance~

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