Copilot Studio employs a language understanding model that uses an example-based approach, powered by a deep neural model. With the Copilot Studio model, you provide a few examples when you craft trigger phrases for a topic. The examples for a single topic are usually 5 to 10 phrases. Shorter trigger phrases are better, and you should aim for 2 to 10 words per phrase. Trigger phrases should be semantically different. For example, changing a single verb or noun could be enough to expand a topic's coverage.
Other changes or additions between phrases can be:
- Articles such as the, a, or an
- Capitalization
- Contractions such as you're or don't
Plurals don't improve the triggering because contractions are already accounted for in the AI model.
Entities used in related topics automatically identify in user intents when matched with their trigger phrases. For example, the user intent "I want to book a ticket to Boston" matches with the trigger phrase "I want to book a ticket to Paris."