AWS Certified AI Practitioner · Free Practice Question Medium

Question 4

A legal firm is digitizing a large volume of contracts and other legal documents to streamline document management and analysis. The firm is looking for AWS machine learning services that can automatically detect and extract text from scanned images and photos of these documents. Understanding which services specialize in text extraction from images will help the firm choose the right solution for automating its document processing workflow.

Which AWS ML services will you recommend to the firm? (Select two)

  • A

    Amazon Lex

  • B

    Amazon Rekognition

  • C

    Amazon Textract

  • D

    Amazon Comprehend

  • E

    Amazon Polly

Reveal correct answers

Correct answers: B, C

Explanation

Correct options:

Amazon Rekognition

Amazon Textract

Both Rekognition and Textract possess the ability to detect text within images.

Rekognition specializes in identifying text located spatially within an image, for instance, words displayed on street signs, t-shirts, or license plates. Its typical use cases encompass visual search, content filtering, and deriving insights from content, among others. However, it's not the ideal choice for images containing more than 100 words, as this exceeds its limitation.

On the other hand, Textract is tailored more towards processing documents and PDFs, offering a comprehensive suite for Optical Character Recognition (OCR). It proves useful in scenarios involving financial reports, medical records, receipts, ID documents, and more.

Incorrect options:

Amazon Comprehend - Amazon Comprehend is a natural language processing (NLP) service that uses machine learning to find meaning and insights in text. By utilizing NLP, you can extract important phrases, sentiments, syntax, key entities such as brand, date, location, person, etc., and the language of the text. Comprehend can analyze text, but cannot extract it from documents or images.

Amazon Lex - Amazon Lex is a fully managed artificial intelligence (AI) service with advanced natural language models to design, build, test, and deploy conversational interfaces in applications. Amazon Lex leverages the power of Generative AI and Large Language Models (LLMs) to enhance the builder and customer experience. Lex is a powerful service for building bots, but it cannot extract text from documents or images.

Amazon Polly - Amazon Polly uses deep learning technologies to synthesize natural-sounding human speech, so you can convert articles to speech.

Reference:

https://repost.aws/questions/QUsCXe41EtTYq3QDaY18EnSg/textract-vs-rekognition-in-detect-text-in-picture

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