How to extract the name of detected entity value through Actions?

Rasa Open Source
1

I’m writing an action where tracker.get_slot returns the entity value. What I need is entity name corresponding to that entity value… please help

1 Like
2

@akelad Please help :stuck_out_tongue:

3

tracker.get_latest_entity_values

2 Likes
4

thanks.

Hey @akelad, thanks for your response. But i want the entity name to use it in my action and not the entity values.

5

One way to extract the entity type of the latest user input is by parsing the latest_message variable of the DialogueStateTracker class which contains the entire dump of the prediction from the NLU model

prediction = tracker.latest_message
entity_type = prediction['entities'][0]['entity']
3 Likes
6

Hello @akelad tracker.get_latest_entities_values require parameter of entity type in new rasa version. But stil its not able to access entity values. I my code it is showing error. when i am trying to print entity values enitiy values=>>>>>> The detail is as follows <generator object Tracker.get_latest_entity_values.<locals>.<genexpr> at 0x7fb3d77b9200>.

My actions.py code def run(self, dispatcher, tracker: Tracker, domain: Dict[Text, Any]) -> List[Dict[Text, Any]]:

    ent = tracker.get_latest_entity_values('str')
    print("enitiy values=>>>>>>", ent)

domain.yml file entities:

  • agriculture
  • health
  • education
  • social welfare

nlu.md file

intent:test

7

entity_type = prediction[‘entities’][0][‘entity’] entity_value = prediction[‘entities’][0][‘value’]

works for me