RoBERTa trained on NSP task

[prajjwal1]

Hi,

Firstly, thanks for the paper, lots of interesting insights, and for sharing the code. I wanted to try out how RoBERTa would perform when it is coupled with NSP. I know in the original paper, NSP was discarded, but wanted to see how NSP would work out for my use-case.
Did you try with RoBERTa NSP by any chance ? I see that the code defaults to masked LM. I'm not able to find any RoBERTa checkpoint trained on NSP objective on HF model-hub or fairseq repo. If not, I'd have to see how can I perform pre-training myself. Can you please share instructions on pre-training on Bookcorpus and wikipedia ? I see that the paper mentions it, so it will be helpful if you can share it.

Thanks again for the contribution.