Rasa entities regex

Rasa Open Source
1

Hey everyone. I want to check my slots that are being filled from the user texts… Currently I have the following slot -

  slots:
   quantity:
    type: list
    influence_conversation: true

and my nlu as :

- intent: quantity
   examples: |
     - 1
     - two
     - 2
     - three
     - 3
     - 4
     - four

…more similar examples. If I say “we rice” instead of “3 rice”, it captures “we” into the quantity slot. Can I specify that the quantity slot must have only digits?

2

I’d recommend to add a bunch of examples like we rice without quantity labels

3

no that’ll be counterproductive since “we rice” doesn’t mean anything… I just wanted to know if I add -

- regex: quantity
  examples: |
    -[0-9]

to my nlu , will it work to capture only digits into quantity?

4

no, regex only serve as additional features.

that’ll be counterproductive since “we rice” doesn’t mean anything

this is the idea of using ML instead of hardcoding: you provide a bunch of examples and contra examples to learn wanted behaviors.

also for numbers, I’d recommend to use Duckling: Components