Duckling, and filling slots

Rasa Open Source
1

Hi People,

I am relatively new to using rasa, and I am presently using duckling to extract values, and I was expecting to have such value assigned to intended slot:

Please see below log from the terminal:

10%20pm
10%20pm2030×476 349 KB

Here the correct intent has been identified, and, the entity has been extracted and interpreted correctly, but it is not being assigned to the slot, as I would expect.

Other extractors work fine (for example if in the above case I wrote “about a hundred”, or “about 50”), but duckling doesn’t seem to assign the interpreted value to the desired slot:

–

NB: In the above case, training data is arranged as follows:

## intent:inform_budget_approximate
- around [150.00](budget_approximate) bucks
- something like [100](budget_approximate)
- [50.00](budget_approximate)
- [60](budget_approximate) approx.
- approx [75.00](budget_approximate)
- I dunno, something like $[50](budget_approximate)
- something around [60.00](budget_approximate)
- in the vicinity of [200.00](budget_approximate)
- [100](budget_approximate) ballpark 
- ballpark figure of [100.00](budget_approximate) 
- about [150](budget_approximate)
- something about [100.0](budget_approximate)
- [10000.00](budget_approximate)
- [1000](budget_approximate)
- [100](budget_approximate)
- [10](budget_approximate)
- [1](budget_approximate)
- approximately [100](budget_approximate)
- about [one hundred](budget_approximate:100)
- i want to spend about a [hundred](budget_approximate:100)
- something like [fifty](budget_approximate:50)
- [one hundred](budget_approximate:100)
- [fifty](budget_approximate:50)

I would greatly appreciate some instructions / advise here.

Many Thanks. Love rasa so far.

2

Hi! If you’re using duckling to extract the numbers, you actually don’t need to label the training data. what you should do is have a custom action that will check for e.g. a number entity and fill the slot with that entity. or you could use forms, and in the slot mappings, fill the slot from the “number” entity.

1 Like
3

@ADPowers

For example, if you let duckling extract a “duration”, your slot_mapping method could implement:

return {
    "duration": self.from_entity(entity="duration")
}

then it would be extracted and set automatically, but only if you set this entity up in config.yml:

- dimensions:
  - time
  - duration
  locale: de_DE
  name: DucklingHTTPExtractor
  timezone: Europe/Berlin
  url: http://localhost:8001

Hope that helps aswell!

Regards

4

@ADPowers @JulianGerhard is correct, and what I mean by not having the names match up is that your slot mapping could be, e.g.

return {
    "budget_approximate": [
         self.from_entity(entity="number"), 
         self.from_entity(entity="amount-of-money")
    ]
}

this use case is very similar to something we do in our demobot here

1 Like