Amazon Comprehend is available to use on the AWS Console. When you log in to the AWS Management Console, search for Amazon Comprehend in the AWS Services box. Selecting Amazon Comprehend will take you to the AWS Comprehend start screen, as shown in the following screenshot:
Click on Launch Comprehend when you get to this screen, which will then take you to the AWS Comprehend dashboard. You should be able to access the algorithms used in the following sections from this page.