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Table 3 Processing of identifier and quasi-identifier

From: Design of a human-centric de-identification framework for utilizing various clinical research data

//S2. Processing of identifier
HandleID(id, rule){
    setRule = basicRule
    CheckedRisk = CheckRisk(value1)
    PermittedRisk = SetRisk(value2)
//The Rule, ChkRisk, PermittedRisk can be customized.
    For column = 1 to Number of columns{
      if(CheckedRisk < PermittedRisk){
        goto S3
      }
      if(classifiedID == DID){
        returnedId = DeidentificationID(id, setRule)
//Cryptography, Replacement, Elimination
      CheckedRisk = CheckRisk(returnedId)
//Risk evaluation (by each column)
      } Next column
    }
    goto S3
}
//S3. Processing of quasi-identifier
HandleQID(qid, level){
    setLevel = basicLevel
    CheckedRisk = CheckRisk(value1)
    PermittedRisk = SetRisk(value2)
//The Level, ChkRisk, PermittedRisk can be customized.
    For column = 1 to Number of columns{
      if(CheckedRisk < PermittedRisk){
        goto S4
      }
      if(classifiedID == QID){
        returnedQid = DeidentificationQID(qid, setLevel)
//Suppression, Generalization, Perturbation,
        CheckedRisk = CheckRisk(returnedQid)
//Risk evaluation (by each column)
      } Next column
    }
    goto S4
}