System and method for determining reasons for anomalies using cross entropy ranking of textual items
US11610580B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 5, 2020 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Apr 20, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/063
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A framework for reducing the number of textual items reviewed to determine the source of or reason for an anomaly in a time series that is used to track metrics in textual data is provided. According the framework, textual items in a time window corresponding to the anomaly are ranked according to the cross-entropy as determined by applying a language model to the relevant textual items and ranking textual items that most likely triggered an anomaly in time series data based on the cross-entropy value. In an aspect, a predetermined number of textual items having the highest cross-entropy are provided or all textual items having cross-entropy value higher than predetermine threshold are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.