Valx: A System for Extracting and Structuring Numeric Lab Test Comparison Statements from Text.

@article{Hao2016ValxAS,
  title={Valx: A System for Extracting and Structuring Numeric Lab Test Comparison Statements from Text.},
  author={Tianyong Hao and Hongfang Liu and Chunhua Weng},
  journal={Methods of information in medicine},
  year={2016},
  volume={55 3},
  pages={266-75}
}
OBJECTIVES To develop an automated method for extracting and structuring numeric lab test comparison statements from text and evaluate the method using clinical trial eligibility criteria text. METHODS Leveraging semantic knowledge from the Unified Medical Language System (UMLS) and domain knowledge acquired from the Internet, Valx takes seven steps to extract and normalize numeric lab test expressions: 1) text preprocessing, 2) numeric, unit, and comparison operator extraction, 3) variable… CONTINUE READING
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