AI-900: How to use the “None” intent in Language Understanding applications

Learn what the “None” intent is, why it is important, and how to use it in your Language Understanding applications.

Question

When creating a Language Understanding application, what type of utterances should you map to the “None” intent?

A. Utterances that don’t expect a response back
B. Utterances that do not map any of the other intents
C. Utterances that map to non-logical intents

Answer

B. Utterances that do not map any of the other intents

Explanation

The “None” intent is considered a fallback, and is typically used to provide a generic response to users when their requests don’t match any other intent.

The correct answer is B. Utterances that do not map any of the other intents.

The “None” intent is a default and required intent in every Language Understanding application. It is used to categorize any utterances that are outside of the domain or scope of the application, and do not belong to any of the other custom intents. For example, if the application is about booking flights, then an utterance like “I want to buy a book” would be mapped to the “None” intent, because it is not related to the purpose of the application.

The “None” intent helps to improve the accuracy and reliability of the intent prediction, by providing a fallback option for irrelevant or unexpected utterances. It also helps to avoid false positives, where an utterance is incorrectly mapped to a custom intent that is not intended. By adding examples of such utterances to the “None” intent, the application can learn to distinguish them from the valid utterances.

The “None” intent should not be confused with the “No” intent, which is a possible custom intent that can be created by the developer. The “No” intent would be used to capture utterances that express a negative response or refusal, such as “No, I don’t want to book a flight” or “No, thank you”. The “No” intent is still within the domain of the application, and can be used to handle the user’s input accordingly.

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