Metadata-populated model test and more

[sayakpaul]

@khanhlvg,

I have populated the fixed-shape models with metadata (notebook). Would you be able to help verify if those work in Android Studio? If they do then I will go ahead and publish with TensorFlow Hub.

Here's where you can find the metadata populated models.

Note: I was not able to complete the inference with integer quantized fixed-shape models (notebook).

[sayakpaul]

Also, I am able to do the full-integer quantization with tf-nightly (2.5.0-dev20201205) but it's not yet supported in TensorFlow 2.3.0.

[khanhlvg]

Yes it can be imported correctly. Please proceed with publishing to TF Hub :)

For the integer quantized model, it looks like there's a limitation in the TFLite integer quantization scheme. I'll share with the TFLite team for further investigation but I don't think it can be fixed soon. Please feel free to proceed without it.

[sayakpaul]

Thanks @khanhlvg.

Were you able to run inference in Android Studio as well? That way we could verify if the metadata population was indeed correct.