Improved Zero-shot Neural Machine Translation via Ignoring Spurious Correlations
Table 5: Effects of multi-way data on Europarl. ‘‘Yes’’ means with multi-way translation, and ‘‘No’’ means the opposite.
['Model', 'Es→Fr Yes', 'Es→Fr No', 'De→Fr Yes', 'De→Fr No']
Prior research Cheng et al. To investigate the affects, we followed the same process in Cheng et al. We conjecture that the performance drop is mainly because of the size of the dataset. Also our methods can easily beat Chen et al.