Junk short message filter method

A technology of spam SMS and filtering method, applied in wireless communication, special data processing applications, instruments, etc., can solve problems such as high manslaughter rate, inability to flexibly respond to changes in spam SMS, inability to effectively identify and filter spam SMS, etc. quick effect
CN101977360AActive Publication Date: 2011-02-16BEIJING FEINNO COMM TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING FEINNO COMM TECH
Publication Date
2011-02-16

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Abstract

The invention discloses a junk short message (SM) filter method, which comprises the following steps: step 10, deleting words which are not related with the SM texts in the SMs; step 20, calculating file fingerprints of the SMs in which the words not related with the SM texts are deleted; and step 30, if the number of the file fingerprints of the SMs in which the words not related with the SM texts are deleted exceeds a first preset threshold value, judging that the SMs are junk SMs. The method is a filter method based on the file fingerprints, which refers to not only similarity of the SMs in texts, but also mode of transmission of the junk SMs. The junk short message filter method of the invention has the advantages that identification and filter of the junk SMs are fast, thereby being suitable for occasions with higher requirements on instantaneity; and the filter method is not affected by change of nonessential texts in the junk SMs, thereby being capable of effectively dealing with continuous changes of the junk SMs.
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Description

technical field

[0001] The invention relates to the technical field of text information processing, in particular to a method for filtering spam short messages. Background technique

[0002] Short message is one of the ways of information exchange that people often use. At the same time, spam text messages have also begun to flood gradually. Statistics show that among the huge number of short messages, about 30% belong to spam text messages. For ordinary users, spam text messages seriously interfere with daily life; for operators, spam text messages occupy a large amount of traffic space and reduce information transmission efficiency.

[0003] The main contents of spam messages include advertising information, pornographic information, false winning information, fraudulent information and pranks, among which pornographic information and false winning information are the most common.

[0004] In the prior art, the most common filtering methods include:

[0005] 1. Spam SMS...

Claims

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