tau norm doesn't require --model_dir option?

[ooodragon94]

Hi

thanks for your work. Not to mention that your code is also brilliant :)

I'm curios with the shell script you shared on Readme From what I read, tau norm also needs to start from a trained network with instance sampling. However, it seems like the part on "saving feature" doesn't require any pretrained model.

Is there something I am missing?

Huge thanks in advance!