×

Anonymity measuring device

  • US 8,990,252 B2
  • Filed: 01/07/2013
  • Issued: 03/24/2015
  • Est. Priority Date: 01/29/2007
  • Status: Active Grant
First Claim
Patent Images

1. A device comprising:

  • a memory to store instructions; and

    a processor to execute the instructions to;

    calculate a conditional conditional entropy for each entry in an anonymized database,each conditional entropy being based on a probability of each entry existing in an original database,the probability of each entry being based on a respective entry existing in the anonymized database, andthe processor, when calculating the conditional entropy for each entry in the anonymized database, is to;

    calculate the conditional entropy for each entry in the anonymized database using a formula that is based on;



    a first value that represents each entry in the original database, 

    a second value that represents one of the entries in the original database, 

    a third value that represents one of the entries in the anonymized database, and 

    a fourth value that represents a probability of the second value based on the third value;

    compare at least one calculated conditional entropy with a threshold value; and

    transmit, based on comparing the at least one calculated entropy with the threshold value, information associated with the anonymized database,the information including at least one of the entries in the anonymized database.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×