youtube-8m | CVPR 2017 Workshop ) Hierarchical Deep Recurrent | Machine Learning library
kandi X-RAY | youtube-8m Summary
kandi X-RAY | youtube-8m Summary
(CVPR 2017 Workshop) Hierarchical Deep Recurrent Architecture for Video Understanding
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Top functions reviewed by kandi - BETA
- Run the model
- Builds the graph of the given model
- Find a class by name
- Build the model
- Get input tensors
- Evaluate the model
- Runs evaluation loop
- Adds a summary
- Adds a single global step summary
- Retrieves the list of feature names and sizes
- Creates a model
- Sample random frames
- Pool the input frames
- Returns a random sequence of random samples
- Calculate the average precision
- Calculate the average precision of predictions
- Builds inputs and outputs
- Builds prediction graph
- Run inference
- Format examples
- Retrieves a list of feature names and sizes
- Convert a dict to a CSV row
- Prepare a tf reader
- Return the value at the given index
- Reads a TFRecord reader
- Return a reader object
- Start the parameter server
- Find a class by its name
youtube-8m Key Features
youtube-8m Examples and Code Snippets
Community Discussions
Trending Discussions on youtube-8m
QUESTION
I am getting started with Google's Audioset. While the dataset is extensive, I find the information with regards to the audio feature extraction very vague. The website mentions
128-dimensional audio features extracted at 1Hz. The audio features were extracted using a VGG-inspired acoustic model described in Hershey et. al., trained on a preliminary version of YouTube-8M. The features were PCA-ed and quantized to be compatible with the audio features provided with YouTube-8M. They are stored as TensorFlow Record files.
Within the paper, the authors discuss using mel spectrograms on 960 ms chunks to get a 96x64 representation. It is then unclear to me how they get to the 1x128 format representation used in the Audioset. Does anyone know more about this??
...ANSWER
Answered 2018-Aug-13 at 08:52They use the 96*64
data as input for a modified VGG
network.The last layer of VGG
is FC-128
, so its output will be 1*128
, and that is the reason.
The architecture of VGG
can be found here: https://github.com/tensorflow/models/blob/master/research/audioset/vggish_slim.py
QUESTION
The Youtube-8m download webpage provides the following curl instructions:
...ANSWER
Answered 2017-Nov-02 at 15:50That script is intended to run in a *nix
(Unix
or linux
or ...) environment.
Do you have the bash
for windows installed? If so, that is the quick solution, just run the script/cmds in that environment (and make sure that which python
returns the correct /path/to/preferred/version_of/python
).
To explain/expand on what that code does, *nix
allows setting env vars specific to the command being run at the end of the line. An alternate way to "say" the same thing as the code you have included in *nix
is
QUESTION
As denoted here youtube-8m tf-records are saved with the format comes at the end of my question.I write a code to extract features. but there is a problem. the code can read all elements in features successfully but it is not able to read feature_lists. in fact, the example does not include features_list at all and I get an error while I try to access it. How can I read the feauures_list. I attach Data format, My code and the output :
...ANSWER
Answered 2017-Sep-14 at 12:23Instead of
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install youtube-8m
You can use youtube-8m like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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