Fig. 1From: Semantic categorization of Chinese eligibility criteria in clinical trials using machine learning methodsPipeline of eligibility criteria processing and clustering. a An English EC sentence pre-processing demonstration example. b The process of transform Chinese eligibility criteria into feature matrix based on UMLS semantic types. neop, Neoplastic Process; ftcn, Functional Concept; bpoc, Body Part, Organ, or Organ Component; qlco, Qualitative ConceptBack to article page