Distribution-based detection of abusive requests
US11457034B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2020 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Jan 15, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1425
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The disclosed embodiments provide a system for detecting abusive requests. During operation, the system generates, based on one or more primary signals, a first set of clusters of network requests spanning a first period and a second set of clusters of requests spanning a second period. Next, the system stores, in a snapshot, a signature representing primary signal values and a first distribution of secondary signals in a first cluster in the first set of clusters. The system matches primary signal values from a second cluster in the second set of clusters to the signature and calculates a divergence score representing a deviation of a second distribution of secondary signals in the second cluster from the first distribution. When the divergence score violates a threshold, the system generates output for identifying additional network requests that contain one or more primary and secondary signal values in the second cluster.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.