A question about fl-split and virtual workers

[qingwh]

Hi,
Thanks a lot for your nice and quick reply. I have a question about fl-split. Does number of fl-split mean number of data silos? what does virtual worker rank 0 and rank 1 do? Many thanks!

[Raymw]

yeh the fl split kind of like the silos and collect the G and H. Rank 0 and rank 1 are like the horizontal split of dataset and they will train a common model together. During the training process, the rabit in xgboost will help each rank to communicate about the G and H in each split point so that they can train a global model.
Thanks ！

[qingwh]

Thanks a lot for your reply!

[Raymw]

No problem. So, are you also interested in federated learning and doing research about it ?

[qingwh]

Yes, I am. Your paper is very great to learn.

[Raymw]

Thank you :)