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Sentiment Analyzer API - Developers

The Sentiment Analysis API tells the expressed opinion in short texts is positive, negative, or neutral in 3-axes: like - dislike, joy - sad and anger - fear. Given a short sentence (currently only Japanese is supported), it returns a label representing the identified sentiment, along with a numeric score ranging from strongly positive (3.0) to extremely negative (-3.0) on each axis. Sentiment Analyzer API shows more detailed sentiment than NegatibePositive Analyzer by Metadata Inc.