Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted. The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov. Updates regarding government operating status and resumption of normal operations can be found at OPM.gov.

Sub-Term Mapping Tools

Lexical Tools Norm

  • Descriptions:
    • This is used in Metathesaurus (MRXNS_ENG.RRF) to normalize terms for CUI mapping.
    • It is used in STMT to normalize the input term to map the CUI.
    • Use Lexical Tools - NormApi
    • To match the key (normalized term) in the CUI mapping file (MRXNS_ENG.RRF)
    • For aggressive mapping to CUI by abstract away from:
      • q0: Symbol
      • g: Genitive
      • rs: parenthetical plural forms (s), (es), (ies)
      • o: Punctuation
      • t: Stop Words
      • l: cases
      • B: inflectional variants
      • Ct: spelling variants
      • q7:q8: Unicode
      • w: word order

  • Notes:
    • An application of using Lexical Tools - NormApi
    • No category information is considered, use:

      Vector<String> normStrs = normApi.Mutate(String inStr);

    • This is a one (input) to many (outputs) function and might generate noise
    • High recall rate and OK precision