Constraining Slot Values

In this short lesson we explain why you might want to use forms to set slots. It turns out that entities can be detected innapropriately and we need to constrain our data collection to only collect when it's appropriate.

Video


Code

Let's consider our settings in our domain.yml file once more.

entities:
- shirt_size


slots:
  shirt_size:
    type: text
    influence_conversation: true
    mappings:
    - type: from_entity
      entity: shirt_size

Suppose now that a user, during a conversation, says; "I feel medium today. Kind of sad". Then the token medium is mapped to the shirt_size slot even though the user wasn't declaring a shirt size. This means that we need to be careful when we allocate an entity to a slot. We may only want to do that when we're actively asking for a specific value.

This is why we may want to start using forms to set slots. It will allow us to structure the way that we ask for information and it will also allow us to add conditions to our slots that prevent the behavior in the video.

Links

Exercises

Try to answer the following questions to test your knowledge.

  1. Can you think of other slot values that may be set innapropriately?
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