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

UMLS-Core: Performance

  • Descriptions:
    • The synonym substitution could be very expensive due to the huge number of permutations on all possible synonym substitutions. In practice, we only limited the synonym substitutions to one or two to increase the performance and precision rate. The algorithm needs to design accordingly to exclude any permutation exceeed the limit for the performance reason.

  • Examples - Test Cases:
    • Input term:
      VA10052|Extracapsular Cataract Removal with Insertion of IOL Prosthesis (1-Stage), Complex, Requiring Devices or Techniques not Generally used in Routine Cataract Surgery or Performed on Patients in the Amblyogenic Developmental Stag
    • Synonym Norm:
      extracapsular cataract removal with insertion of iol prosthesis 1 stage complex requiring devices or techniques not generally used in routine cataract surgery or performed on patients in the amblyogenic developmental stage
    • Synonym lists:
      WordSynonym list
      cataract
      • cataracta
      removal
      • amputation
      • aspiration
      • delivery
      • enucleation
      • evacuation
      • evisceration
      • excision
      • excision of
      • extirpation
      • extract
      • extraction
      • resection
      • surgical removal
      with
      • and/or
      insertion of
      • apply
      • insert
      • placing of
      insertion
      • application
      • apply
      • implant
      • introduction
      prosthesis
      • Artificial
      • Graft
      • Implant
      • implant
      • prosthetic
      1
      • i
      complex
      • syndrome
      devices
      • equipment
      or
      • operating room
      techniques
      • method
      • methodology
      • procedure
      • technic
      not
      • non
      routine
      • standard
      surgery
      • operating
      • operation
      • procedure
      • surg
      • surgical
      patients
      • client
      developmental
      • birth
      • congenital
      • development
      • familial
      • hereditary
      • in newborn
      • neonatal
    • Subterms:
      extracapsular cataract removal with insertion of iol prosthesis 1 stage complex requiring devices or techniques not generally used in routine cataract surgery or performed on patients in the amblyogenic developmental stage
    • Total permutations of synonym substitutions for CUI mapping:
      165,150,720= 2 x 14 x 2 x 4 x 6 x 2 x 2 x 2 x 2 x 5 x 2 x 2 x 2 x 6 x 2 x 2 x 8
      If each mapping take 0.1 sec., it will take 458.6311 hr. (19.10 days) for the mapping. This is too expensive!