👋 Introducing the Rasa Playground

How Rasa Roles actually work?

post by OmarFarag95 on May 10, 2021

OmarFarag95
I am interested to know how Roles in Rasa actually work from the ML/NLP point of view?.
My assumption is that it’s another level of classification done within the classifier. For example, after classifying an entity with a certain type, another level of Multi label classification is done across possible set of Roles for this entity!
Is my assumption true? could anyone elaborate more?

post by tyd on May 12, 2021

tyd
Hi @OmarFarag95. From Introducing Entity Roles and Groups: “Using one CRF for entity labels and one for role labels worked best on both datasets and resulted in an F1 score that was a point higher compared to the other approaches”