Anomaly detection
US7346803B2 · kind B2 · utility
19Cited by
2References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2005 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Aug 31, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system such as a Web-based system in which a plurality of computers interact with each other is monitored to detect online an anomaly. Transactions of a service provided by each of a plurality of computers to another computer are collected, a matrix of correlations between nodes in the system is calculated from the transactions, and a feature vector representing a node activity balance is obtained from the matrix. The feature vector is monitored using a probability model to detect a transition to an anomalous state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.