Investigation of Sentiment Controllable Chatbot
TABLE III: Evaluation of persona-based model under different sentiment score inputs.
['Metrics Sentiment score', 'Metrics 0.0', 'COH1 -7.381', 'COH2 0.656', 'SCL 0.040', 'LM -1.862']
Further, we applied other sentiment scores as input to generate sentences with different degrees of sentiment. As expected, the lower we set the input, the lower the resultant sentiment scores : this suggests the model is already transforming sentences to different sentiments.