In linguistics and in particular in natural language understanding, a dialog act can be interpreted as the atomic units of a conversation, more fine-grained than utterances, characterized by a specific communicative function.
[1] Types of dialog acts include a question, a statement, or a request for action.
One study had 42 types of dialog act in their taxonomy.
[3] Examples of types in this study include STATEMENT, OPINION, AGREEMENT/ACCEPT, and YES-NO-QUESTION.
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