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[2021 CVPR] Positive Sample Propagation along the Audio-Visual Event Line

Python 100.00%
audio-visual-events audio-visual-learning

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psp_cvpr_2021's Issues

Some questions about the paper

I also read the original paper of 'AVE'. I don't understand why you say them tries to automatically filter out unpaired samples. How to understand the meaning of 'filter out'.
图片

Why the right_labels.h5 does not contain all the video labels?

Hello, I would like to ask why only the first category of video classification (Church bell) labels per second are given in right_labels.h5, only the first 188 rows show whether there is an event per second, and the values of all subsequent rows It is all 0. Logically, it should contain all the labels of all videos for 10 seconds. If an event occurs, it will be 1, otherwise is background, is 0.
I am very sorry to bother you all the time, and I am very grateful for your contribution.
1

weakly_model.py

Hi, I think "v_dim=hidden_dim" should be changed to "v_dim=v_dim" on line 197.

Train from scratch

Good work! When I train from scratch for the fully supervised setting, the AVE localization accuracy can achieve 75.8% or 75.2% with different seeds. Any suggestions?

The question of result

Hi, nice work!

I was very sorry to bother you. When I used your code, there were two results(val and test), I had read your paper, but I did not see the description of result. So, which result did you use in your paper? val or test dataset?

Thank you very much!

what information is prob_label.h5 generated based on

Hello, I would like to ask what information is prob_label generated based on? At first I thought it corresponds to the information in annotation.txt, because they all have 4143 lines, but I found that actually prob_label does not correspond to annotation, because the maximum probability of displaying the second line in prob_label is the background.
.

How to generate attention map?

Can you provide the code to generate the attention map? I tried to run "attention_visualization" of AVE-ECCV18, and use “PSP_fully.pt” to replace the model of the original code, but an error "Nonetype object has no attribute register_forward_hook" appeared, I know it was caused by the replacement of the model, but I don’t know how to solve.

Why do some Linear layers have bias set to False?

Hi,

Thanks for your code and congrats on the paper accept. I was going through your code and your model definition. I have 2 enquiries:

  1. Why do some Linear layers have bias set to False?
  2. You init linear layers with Xavier Uniform initialization. Does initialization with other methods influence your result?

Thanks!

training time and environment

Dear authors,

Could you please kindly let me know how many GPUs you used for training the model? and how long will it take? Do you set the early stop or specify the overall training epochs?

Thanks a lot for your help!

data

Dear authors,

Thanks for opening this work!
I have downloaded the data as:
data/AVE_Dataset
data/audio_feature.h5 prob_label.h5 right_labels.h5 visual_feature.h5

Looks like it miss the other files e.g. audio_feature_noisy.h5 visual_feature_noisy.h5

Besides, could you please let me know the environment you use?

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