Recipes for building an open-domain chatbot
Figure 8: Self-Chat ACUTE-Eval (engagingness): comparing beam-blocking variants. Blocking both context and response 3-grams during generation gives highest scores, however, none of these results are significant.
['Generative 2.7B model: Beam Blocking Block', 'Generative 2.7B model: Beam Blocking Block', 'Generative 2.7B model: Beam Blocking vs.', 'Generative 2.7B model: Beam Blocking None']
Blocking tends to increase performance, in line with other works, although the results were not significant. We employ full blocking in the remainder of our experiments.