Invention Grant
- Patent Title: System and method for machine learning architecture with privacy-preserving node embeddings
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Application No.: US16870932Application Date: 2020-05-09
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Publication No.: US11645524B2Publication Date: 2023-05-09
- Inventor: Nidhi Hegde , Gaurav Sharma , Facundo Sapienza
- Applicant: ROYAL BANK OF CANADA
- Applicant Address: CA Toronto
- Assignee: ROYAL BANK OF CANADA
- Current Assignee: ROYAL BANK OF CANADA
- Current Assignee Address: CA Toronto
- Agency: Norton Rose Fulbright Canada LLP
- Main IPC: G06N3/08
- IPC: G06N3/08 ; G06N3/04 ; G06F16/901 ; G06F17/16 ; G06F17/18 ; G06K9/62

Abstract:
A computer system and method for machine inductive learning on a graph is provided. In the inductive learning computational approach, an iterative approach is used for sampling a set of seed nodes and then considering their k-degree (hop) neighbors for aggregation and propagation. The approach is adapted to enhance privacy of edge weights by adding noise during a forward pass and a backward pass step of an inductive learning computational approach. Accordingly, it becomes more technically difficult for a malicious user to attempt to reverse engineer the edge weight information. Applicants were able to experimentally validate that acceptable privacy costs could be achieved in various embodiments described herein.
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