Amazon Comprehend
Developer Guide

How It Works

Amazon Comprehend uses a pre-trained model to examine and analyze a document or set of documents to gather insights about it. This model is continuously trained on a large body of text so that there is no need for you to provide training data.

Amazon Comprehend can examine and analyze documents in these languages:

  • English

  • Spanish

  • French

  • German

  • Italian

  • Portuguese

Additionally, Amazon Comprehend's Detect Dominant Language operation can examine documents and determine the dominant language out of a far wider variety of different languages. For more information, see Languages Supported in Amazon Comprehend.

With Amazon Comprehend, you can perform the following on your documents:

  • Detect the Dominant Language—Examine text to determine the dominant language.

  • Detect Entities—Detect textual references to the names of people, places, and items as well as references to dates and quantities.

  • Locate Key Phrases—Find key phrases such as "good morning" in a document or set of documents.

  • Determine the Sentiment—Analyze documents and determine the dominant sentiment of the text.

  • Analyze Syntax—Parse the words in your text and show the speech syntax for each word and enable you to understand the content of the document.

  • Topic Modeling—Search the content of documents to determine common themes and topics.

Each operation can be processed in several ways: