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Recognizing intents from user input | Introduction |
A voice assistant evolves around intent recognition. Intent recognition tries to extract the user's intent from their input. This intent, a data format, will then be executed by Home Assistant.
Home Assistant's intent recognition is powered by hassil. Hassil recognizes intents by matching the user input against sentence templates.
A sentence template is a sentence that contains slots, placeholders for data, and supports various syntax to allow a single template match a wide range of similar sentences.
(turn | switch) on [the] {area} lights
This example sentence template matches both turn on kitchen lights
and switch on the kitchen lights
. In both cases it will extract extra data area
set to kitchen
.
In Home Assistant we are collecting our sentence templates on GitHub. The repository aims to contain for each language and each supported intent in Home Assistant, the possible sentences a user might say.