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:
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English
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Spanish
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French
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German
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Italian
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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:
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Detect the Dominant Language—Examine text to determine the dominant language.
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Detect Entities—Detect textual references to the names of people, places, and items as well as references to dates and quantities.
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Locate Key Phrases—Find key phrases such as "good morning" in a document or set of documents.
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Determine the Sentiment—Analyze documents and determine the dominant sentiment of the text.
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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.
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Topic Modeling—Search the content of documents to determine common themes and topics.
Each operation can be processed in several ways:
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Single-Document Processing—You call Amazon Comprehend with a single document and receive a synchronous response.
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Multiple Document Synchronous Processing—You call Amazon Comprehend with a collection of up to 25 documents and receive a synchronous response.
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Asynchronous Batch Processing—You put a collection of documents into an Amazon S3 bucket and start an asynchronous operation to analyze the documents. The results of the analysis are returned in an S3 bucket.
