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IBM Watson Concept Expansion API - How To

[Editor's Note: This API is no longer available.] The IBM Concept Expansion API allows users to quickly expand and enrich a concept set to improve the performance of their analytics using IBM Watson. IBM Concept Expansion uses machine learning to take a known concept set and learn from it to reveal similar additional terminology. This service is ideal for use with unstructured source text that doesn't contain well-formed language, such as email, social media posts, and other informal communications.