Hello,
I just start exploring this ResponseSelector class so I’m quite curious about this as well. However, as of last December, random answer for response selector was not possible as stated here. The interesting part is, rasa-demo’s responses.md implies that it is possible, or it will be possible in the future, to choose random responses from possible responses.
As my knowledge on response retrieval model, randomize responses for ResponseSelector is very tricky to do out-of-the-box without any post-processing function since retrieval model is basically measuring similarity ranking between encoded input and output.
I’m sorry to mention, but any comment on this @erohmensing?