Method and device for short message filtration

A filtering method and short message technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as adjusting short message filtering methods, spam short message filtering technology does not have evolutionary learning ability, etc., and achieve low computing power requirements Effect

Active Publication Date: 2010-11-03
HUAWEI TECH CO LTD +1
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Problems solved by technology

[0006] The existing spam SMS filtering technology does not have the ability of evolutionary l

Method used

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  • Method and device for short message filtration
  • Method and device for short message filtration
  • Method and device for short message filtration

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] In the technical solution related to SMS filtering provided by the embodiment of the present invention, there are two basic premises:

[0031] One is that the text messages received by users will change over time, which is the necessity of evolutionary learning. For example, in 2008, users may receive a lot of information related to earthquakes and the Olympic Games, while in 2009, the financial crisis may bear the brunt.

[0032] The second is to assume tha...

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Abstract

The embodiment of the invention discloses a short message filtering method, a classifier consists of vectors which comprise a plurality of characteristic items, and the method comprises the following steps: classifying and filtering a received short message and obtaining the probabilities that the short message is a junk message or a normal message; if the absolute value of the difference of the junk message probability and the normal message probability is less than a preset threshold value, obtaining a feedback result of the short message; according to the feedback result and after self-adaptive learning, updating the classifier; and if the short message has new words which are not in a hotspot word library, updating the classifier after word frequency sequencing according to preset conditions. The embodiment also discloses a short message filtering device, and by utilizing the embodiment, the content change of the short message can be followed up dynamically, thus adjusting the short message filtering mode and improving the short message filtering capacity.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a short message filtering method and device. Background technique [0002] Mobile short message monitoring and filtering is the process of judging whether the content of short messages meets the internal needs of users, and mainly solves the technical problems of text classification and incremental learning. [0003] Text classification needs to solve the dichotomy problem of normal text messages and spam text messages, but the most prominent shortcoming of the support vector machine (Support Vector Machine, SVM) technology currently used for mail filtering is that the training convergence speed on large data sets is slow and requires a large number of It is difficult to apply to mobile terminals due to the lack of real-time feedback due to the large storage resources and high computing power. Mail filtering and SMS filtering are different technical fields, and the ...

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Application Information

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IPC IPC(8): H04W4/14G06F17/30
Inventor 徐蔚然刘东鑫王占一杜家春
Owner HUAWEI TECH CO LTD
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