 While the need for tagging (noising) the dataset has been removed, the approach outperformed the tagged back-translation approach by an average of 0.4 BLEU  .
<clarity>  While the need for tagging (noising) the dataset has been removed, the approach outperformed the tagged back-translation approach by an average of 0.4 BLEU  .
 While the need for tagging (noising) the dataset has been removed, the technique outperformed tagged back-translation approach by an average of 0.4 BLEU .