Natural language processing algorithms for mapping clinical text fragments onto ontology concepts: a systematic review and recommendations for future studies Journal of Biomedical Semantics Full Text
These functions are the first step in turning unstructured text into structured data. They form the base layer of information that our mid-level functions draw on. Mid-level text analytics functions involve extracting the real content of a document of text. This means who is speaking, what they are saying, and what they are talking about. […]