Patents by Inventor Bernard Chartier

Bernard Chartier 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).

  • Automatic rule discovery from large-scale datasets to detect payment card fraud using classifiers
    Patent number: 8543522
    Abstract: A set of payment card transactions including a sparse set of fraudulent transactions is normalized, such that continuously valued literals in each of the set of transactions are transformed to discrete literals. The normalized transactions are used to train a classifier, such as a neural network, such that the classifier is trained to classify transactions as fraudulent or genuine. The fraudulent transactions in the set of payment card transactions are clustered to form a set of prototype transactions. Each of the discrete literals in each of the prototype transactions is expanded using sensitivity analysis using the trained classifier as an oracle, and a rule for identifying fraudulent transactions is generated for each prototype transaction based on the transaction's respective expanded literals.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: September 24, 2013
    Assignee: Retail Decisions, Inc.
    Inventors: Nick F. Ryman-Tubb, Bernard Chartier