Anomaly detection using dictionary based projection
US11935385B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2021 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Jul 18, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/55
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Methods for anomaly detection using dictionary based projection (DBP), and system for implementing such methods. In an embodiment, a method comprises receiving input data including a plurality n of multidimensional data points (MDDPs) with dimension m, applying DBP iteratively to the input data to construct a dictionary D, receiving a newly arrived MDDP (NAMDDP), calculating a score S associated with the NAMDDP as a distance of the NAMDDP from dictionary D, and classifying the NAMDDP as normal or as an anomaly based on score S, wherein classification of the NAMDDP as an anomaly is indicative of detection of an unknown undesirable event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.