Sec. 17: Machine Learning

You should use Amazon Transcribe to turn text into lifelike speech using deep learning.

• True

• False

Answer explanation

Amazon Transcribe is an AWS service that makes it easy for customers to convert speech-to-text. Amazon Polly is a service that turns text into lifelike speech.

A company would like to implement a chatbot that will convert speech-to-text and recognize the customers' intentions. What service should it use?

• Transcribe

• Rekognition

• Connect

• Lex

Answer explanation

Amazon Lex is a service for building conversational interfaces into any application using voice and text. Lex provides the advanced deep learning functionalities of automatic speech recognition (ASR) for converting speech to text, and natural language understanding (NLU) to recognize the intent of the text, to enable you to build applications with highly engaging user experiences and lifelike conversational interactions.

Which fully managed service can deliver highly accurate forecasts?

• Personalize

• SageMaker

• Lex

• Forecast

Answer explanation

Amazon Forecast is a fully managed service that uses machine learning to deliver highly accurate forecasts.

You would like to find objects, people, text, or scenes in images and videos. What AWS service should you use?

• Rekognition

• Polly

• Kendra

• Lex

Answer explanation

Amazon Rekognition makes it easy to add image and video analysis to your applications using proven, highly scalable, deep learning technology that requires no machine learning expertise to use.

A start-up would like to rapidly create customized user experiences. Which AWS service can help?

• Personalize

• Kendra

• Connect

Answer explanation

Amazon Personalize is a machine learning service that makes it easy for developers to create individualized recommendations for customers using their applications.

A research team would like to group articles by topics using Natural Language Processing (NLP). Which service should they use?

• Translate

• Comprehend

• Lex

• Rekognition

Answer explanation

Amazon Comprehend is a natural language processing (NLP) service that uses machine learning to find meaning and insights in text.

A company would like to convert its documents into different languages, with natural and accurate wording. What should they use?

• Transcribe

• Polly

• Translate

• WordTranslator

Answer explanation

Amazon Translate is a neural machine translation service that delivers fast, high-quality, and affordable language translation.

A developer would like to build, train, and deploy a machine learning model quickly. Which service can he use?

• SageMaker

• Polly

• Comprehend

• Personalize

Answer explanation

Amazon SageMaker is a fully managed service that provides every developer and data scientist with the ability to build, train, and deploy machine learning (ML) models quickly. SageMaker removes the heavy lifting from each step of the machine learning process to make it easier to develop high quality models.

Which AWS service makes it easy to convert speech-to-text?

• Connect

• Translate

• Transcribe

• Polly

Answer explanation

Amazon Transcribe is an AWS service that makes it easy for customers to convert speech-to-text.

This was discussed in Lecture 198: Transcribe Overview

Which of the following services is a document search service powered by machine learning?

• Forecast

• Kendra

• Comprehend

• Polly

Answer explanation

Amazon Kendra is a highly accurate and easy to use enterprise search service that’s powered by machine learning.