Similarity-based fraud detection in adaptive authentication systems
US8856923B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2012 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Jun 29, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N7/01
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Similarity-based fraud detection techniques are provided in adaptive authentication systems. A method is provided for determining if an event is fraudulent by obtaining a plurality of tagged events and one or more untagged events, wherein the tagged events indicate a likelihood of whether the corresponding event was fraudulent; constructing a graph, wherein each node in the graph represents an event and has a value representing a likelihood of whether the corresponding event was fraudulent and wherein similar transactions are connected via weighted links; diffusing through weights in the graph to assign values to nodes such that neighbors of nodes having non-zero values receive similar values as the neighbors; and classifying whether at least one of the one or more untagged events is fraudulent based on the assigned values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.