Amazon Comprehend is the correct AWS service for sentiment analysis. It is a natural language processing (NLP) service that uses machine learning to find insights and relationships in text, including sentiment detection (positive, negative, neutral, or mixed).
Why other options are incorrect:
- Amazon Rekognition: This service is for image and video analysis, not text sentiment analysis.
- Amazon Transcribe: This service converts speech to text, but doesn't analyze sentiment in the transcribed text.
- Amazon Translate: This service translates text between languages, but doesn't perform sentiment analysis.
Key Features of Amazon Comprehend:
- Sentiment analysis (positive, negative, neutral, mixed)
- Entity recognition (people, places, brands, etc.)
- Key phrase extraction
- Language detection
- Syntax analysis
- Topic modeling
