Patents by Inventor Varada Kolhatkar

Varada Kolhatkar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System and method to reduce a risk of re-identification of text de-identification tools
    Patent number: 10395059
    Abstract: A computer-implemented system and method to reduce re-identification risk of a data set. The method includes the steps of retrieving, via a database-facing communication channel, a data set from a database communicatively coupled to the processor, the data set selected to include patient medical records that meet a predetermined criteria; identifying, by a processor coupled to a memory, direct identifiers in the data set; identifying, by the processor, quasi-identifiers in the data set; calculating, by the processor, a first probability of re-identification from the direct identifiers; calculating, by the processor, a second probability of re-identification from the quasi-direct identifiers; perturbing, by the processor, the data set if one of the first probability or second probability exceeds a respective predetermined threshold, to produce a perturbed data set; and providing, via a user-facing communication channel, the perturbed data set to the requestor.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: August 27, 2019
    Assignee: PRIVACY ANALYTICS INC.
    Inventors: Martin Scaiano, Grant Middleton, Varada Kolhatkar, Khaled El Emam
  • SYSTEM AND METHOD TO REDUCE A RISK OF RE-IDENTIFICATION OF TEXT DE-IDENTIFICATION TOOLS
    Publication number: 20170177907
    Abstract: A computer-implemented system and method to reduce re-identification risk of a data set. The method includes the steps of retrieving, via a database-facing communication channel, a data set from a database communicatively coupled to the processor, the data set selected to include patient medical records that meet a predetermined criteria; identifying, by a processor coupled to a memory, direct identifiers in the data set; identifying, by the processor, quasi-identifiers in the data set; calculating, by the processor, a first probability of re-identification from the direct identifiers; calculating, by the processor, a second probability of re-identification from the quasi-direct identifiers; perturbing, by the processor, the data set if one of the first probability or second probability exceeds a respective predetermined threshold, to produce a perturbed data set; and providing, via a user-facing communication channel, the perturbed data set to the requestor.
    Type: Application
    Filed: March 7, 2017
    Publication date: June 22, 2017
    Inventors: Martin Scaiano, Grant Middleton, Varada Kolhatkar, Khaled El Emam