Variational Neural Machine Translation with Normalizing Flows
Table 5: Translation accuracy of VNMT models employing various number of flows in the IWSLT condition. The best results are in bold.
['Num', 'PF', 'SF', 'CL']
In the Experimental Results section, we report the accuracy for our models with 4 flows. These results suggest that increasing the number of flows improves accuracy, but the gain diminishes after 4 flows. The results are consistent for all normalizing flows that we considered. We also conduct experiments with employing more flows, but unfortunately, we observe either unstable training or lower accuracy.