Hello! After using Rasa 1.10.X for a while, I’ve moved to Rasa 2.0.0. One thing that is confusing me is the nlu_fallback intent. As far as I understand, the NLU will predict an nlu_fallback intent with a confidence of 1.0 for any message which does not meet the confidence threshold. Unfortunately, as the predicted intent is nlu_fallback, the default_ask_affirmation actions always asks “Did you mean ‘nlu_fallback’?”. It seems to me that the new way of triggering a fallback has broken the two stage fallback. Is there something I’m doing wrong? I want it to suggest whichever of my intents has the highest confidence, not the nlu_fallback intent. How can I fix this issue? Is it possible to get the next highest confidence intent with a custom action, to override default_ask_affirmation? Thank you

Did you mean 'nlu_fallback'? | two stage fallback Rasa 2.0.0

ermarkar (Sunil Garg) March 10, 2021, 6:35am 6

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