Visitor-center comment cards need sentiment and key phrases, and nobody has annotated a training file. A BlazingText job would require labels the desk does not have. Which service fits?
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Short Explanation
Think of comment cards that need sentiment and key phrases, and nobody annotated a training file. Amazon Comprehend. BlazingText wants labels the desk does not have.
Full Explanation
Amazon Comprehend provides sentiment and key phrases without a labeled training file. BlazingText needs labels the desk does not have. Transcribe is speech-to-text. Image Classification is a vision trainer.