Network-based method and apparatus for filtering junk messages
US8326776B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2007 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Jul 20, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L51/212
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a network-based method and system for filtering a junk message. The method includes the following procedures: word-segmenting a target message to obtain characteristic elements within the target message; obtaining probabilities of the characteristic elements in the target message according to a predefined keyword library, the keyword library being updated periodically; and accumulating the probabilities of the characteristic elements in the target message, comparing accumulated probabilities with a predetermined threshold, and concluding the target message is a junk message if the result is greater than the predetermined threshold. Using a predefined keyword library for verification of a target message avoids time delay and system resource waste caused by massive and complicated computations during message verification in existing technologies, thus satisfying the requirement of real-time filtering of junk messages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.