Before revision:  We show that compared to the prior inference time reduction methods, PoWER-BERT offers  better trade-off between accuracy and inference time . Lastly, we demonstrate that our scheme can also be used in conjunction with ALBERT (a highly compressed version of BERT) and can attain up to 6.8x factor reduction in inference time with <1\% loss in accuracy  .
After revision:  We show that compared to the prior inference time reduction methods, PoWER-BERT offers better trade-off between accuracy and inference time . Lastly, we demonstrate that our scheme can also be used in conjunction with ALBERT (a highly compressed version of BERT) and can attain up to 6.8x reduction in inference time with <1\% loss in accuracy .