What makes Watson Natural Language Understanding unique?


Categorize your content using a five-level classification hierarchy.


Identify high-level concepts that aren't necessarily directly referenced in the text.


Analyze emotion conveyed by specific target phrases or by the document as a whole.


Find people, places, events, and other types of entities mentioned in your content.


Search your content for relevant keywords.


For HTML and URL input, get the author of the webpage, the page title, and the publication date.


Recognize when two entities are related, and identify the type of relation.

Semantic Role

Parse sentences into subject-action-object form, and identify entities and keywords that are subjects or objects of an action.


Analyze the sentiment toward specific target phrases and the sentiment of the document as a whole.

Custom Models

Identify custom entities and relations unique to your domain with Watson Knowledge Studio.

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