Amazon Comprehend
Developer Guide

Document History for Amazon Comprehend

The following table describes the documentation for this release of Amazon Comprehend.

  • Latest documentation update: November 25, 2019

Change Description Date

New feature added

Amazon Comprehend now provides support for real-time Custom Classification for documents with unstructured text. Customers can use real-time custom classification to understand, label and route information based on their own business rules, synchronously. For more information, see Real-time Analysis with Custom Classification.

November 25, 2019

New languages added

Amazon Comprehend has added six additional languages for several of its features: Arabic (ar), Hindi (hi), Japanese (ja), Korean (ko), simplified Chinese (zh), and traditional Chinese (zh-TW). These new languages are supported only for Determine Sentiment, Detect Key Phrases, and non-custom Detect Entities operations. For more information, see Supported Languages.

November 6, 2019

New feature

Amazon Comprehend Medical now provides batch operations so that you can process medical text stored in an S3 bucket. It also provides a new model that you can use for examining your medical text. For more information, see Detect Entities Version 2.

September 24, 2019

New feature

Previously, you could only train a model on a single custom entity. As a result, you could only search for that one entity with a entity recognition operation. Amazon Comprehend has changed this and you can now train a model on up to 12 custom entities at a time. For more information, see Custom Entity Recognition

July 9, 2019

New feature

Amazon Comprehend now provides a multi-class confusion matrix for added ability to analyze metrics when training a Custom Classifier. This is currently supported using the APIs only. For more information, see Tagging Resources in Amazon Comprehend

April 5, 2019

New feature

Amazon Comprehend provides tags for Custom Classifiers and Custom Entity Recognizers, which can be used as metadata that enables you to organize, filter, and control access to your resources with a finer level of control than ever. For more information, see Tagging Resources in Amazon Comprehend

April 3, 2019

New feature

Amazon S3 already enables you to encrypt your input documents, and Amazon Comprehend extends this even farther. By using your own KMS key, you can not only encrypt the output results of your job, but also the data on the storage volume attached to the compute instance that processes the analysis job. The result is end-to-end security. For more information, see KMS Encryption in Amazon Comprehend

March 28, 2019

Major New feature

Amazon Comprehend Medical is a new service that detects useful information in unstructured clinical text: physician's notes, discharge summaries, test results, case notes, and so on. Amazon Comprehend Medical uses Natural Language Processing (NLP) models to leverage the latest advances in machine learning to sort through this enormous quantity of data and retrieve valuable information that is otherwise difficult to retrieve and use without significant manual effort. For more information, see Comprehend Medical

November 27, 2018

New feature

Custom entity recognition extends the capability of Amazon Comprehend by enabling you to identify new entity types not supported as one of the preset generic entity types. This means you can analyze documents and extract entities like product codes or business-specific entities that fit your particular needs. For more information, see Custom Entity Recognition

November 16, 2018

New feature

You can use Amazon Comprehend to build your own models for custom classification, assigning a document to a class or a category. For more information, see Document Classification.

November 15, 2018

Region expansion

Amazon Comprehend is now available in EU (Frankfurt) (eu-central-1).

October 10, 2018

Language expansion

In addition to English and Spanish Amazon Comprehend can now also examine documents in French, German, Italian, and Portuguese. For more information, see Supported Languages in Amazon Comprehend.

October 10, 2018

Region expansion

Amazon Comprehend is now available in Asia Pacific (Sydney) (ap-southeast-2).

August 15, 2018

New feature

Amazon Comprehend now parses documents to discover the syntax of a document and the part of speech for each word. For more information, see Syntax.

July 17, 2018

New feature

Amazon Comprehend now supports asynchronous batch processing for language, key phrase, entity, and sentiment detection. For more information, see Asynchronous Batch Processing .

June 27, 2018

New guide

This is the first release of the Amazon Comprehend Developer Guide.

November 29, 2017