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.

Lexical Tools

Sources of 2016 SD-Rules

11 SD-Rules are proposed to be evaluated and added to 2016 release. They are from expert's suggestions and computer generation as described bellows:

  • Linguist's domain (Expert's suggestions):
    such as from LexBuilders and NLP users, 2 SD-Rules are suggested in this category for evaluation.

    • OTHERS:
      Suggested RulesExamples
      al$|adj|ine$|noun
      • medical|adj|medicine|noun
      esis$|noun|ic$|adj
      • muscular dysgenesis|noun|muscular dysgenic|adj

  • Computation Linguistics' domain:
    from known suffixDs, utilize computer programs to retrieve high frequency SD-rules. The SD-Rules derived from the program are root parent-rules (Sd-Rule without parent rules). Two sets of known suffixDs (nomD and orgD) are used to select 9 SD-Rules as follows:
    • NOM_D:
      Derived Rules from NomDExamples
      ation$|noun|ed$|adj
      • excitation|noun|E0026541|excited|adj|E0218417
      $|adj|ism$|noun
      • lyric|adj|E0421373|lyricism|noun|E0589144
      e$|adj|ion$|noun
      • opposite|adj|E0540612|opposition|noun|E0044001
      e$|verb|is$|noun
      • base|verb|E0012022|basis|noun|E0012081

    • ORG_FACT:
      Derived Rules from OrgDExamples
      ve$|adj|on$|noun
      • vibrative|adj|E0531681|vibration|noun|E0064549
      ship$|noun|$|noun
      • citizenship|noun|E0433806|citizen|noun|E0017162
      age$|noun|$|noun
      • percentage|noun|E0046362|percent|noun|E0046984
      ic$|adj|e$|noun
      • hemoscopic|adj|E0599517|hemoscope|noun|E0593476
      tic$|adj|sia$|noun
      • anesthetic|adj|E0330019|anesthesia|noun|E0008935