The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 31, 2023

Filed:

Oct. 25, 2019
Applicant:

Royal Bank of Canada, Montreal, CA;

Inventors:

Weiguang Ding, Toronto, CA;

Yash Sharma, Toronto, CA;

Yik Chau Lui, Toronto, CA;

Ruitong Huang, Toronto, CA;

Assignee:

ROYAL BANK OF CANADA, Montreal, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06N 3/08 (2006.01); G06K 9/62 (2022.01);
U.S. Cl.
CPC ...
G06N 3/084 (2013.01); G06K 9/6256 (2013.01); G06K 9/6267 (2013.01);
Abstract

A system for generating an adversarial example in respect of a neural network, the adversarial example generated to improve a margin defined as a distance from a data example to a neural network decision boundary. The system includes a data receiver configured to receive one or more data sets including at least one data set representing a benign training example (x); an adversarial generator engine configured to: generate, using the neural network, a first adversarial example (Adv1) having a perturbation length epsilon1 against x; conduct a search in a direction (Adv1-x) using the neural network; and to generate, using the neural network, a second adversarial example (Adv2) having a perturbation length epsilon2 based at least on an output of a search in the direction (Adv1-x).


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