Learning to Select, Track, and Generate for Data-to-Text
Table 4: Effects of writer information. w indicates that Writer embeddings are used. Numbers in bold are the largest among the variants of each method.
['Method', 'RG #', 'RG P%', 'CS P%', 'CS R%', 'CS F1%', 'CO DLD%', 'Bleu']
We first look at the results of an extension of Puduppully et al. By adding w to content planning (stage 1), the method obtained improvements in CS (37.60 to 47.25), CO (16.97 to 22.16), and BLEU score (13.96 to 18.18). By adding w to the component for surface realization (stage 2), the method obtained an improvement in BLEU score (13.96 to 17.81), while the effects on the other metrics were not very significant. By adding w to both stages, the method scored the highest BLEU, while the other metrics were not very different from those obtained by adding w to stage 1. This result suggests that writer information contributes to both content planning and surface realization when it is properly used, and improvements of content planning lead to much better performance in surface realization.