As Figures 1(d) and 1(e) show, DAN's macro-F1 classification performance considerably decreases as divergence (or text length) increases for IMDb and Reddit datasets; note that we sort and bin instances based on their divergence values and report average macro-F1 for each bin.
as the trend lines in Figures 1(d) and 1(e) show, the average macro-F1 performance drops from 0.86 and 0.82 on shorter IMDb and Reddit posts to 0.82 and 0.71 on their longer posts respectively.