Anomaly score generation based on adaptive clustering of user location
US10505963B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2017 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Jan 7, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/64
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are provided for determining anomaly scores for transactions based on adaptive clustering of the location of a given user over multiple transactions. In one embodiment, a method comprises obtaining transaction data for a given computer transaction by a user; extracting one or more location features from the transaction data for the given computer transaction; determining a user location of the given computer transaction based on the one or more location features; assigning the given computer transaction to one user location cluster of a plurality of user location clusters of the user based on a distance between the user location and centroids of each of the plurality of user location clusters, when the determined user location satisfies one or more predefined distance criteria; determining an anomaly score for the given computer transaction based at least in part on a centroid location of the assigned user location cluster; and updating the centroid location of the assigned user location cluster based on the user location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.