Garbage short message interception method based on characteristic similarity

A feature similarity and spam SMS technology, applied in the field of spam SMS interception based on feature similarity, can solve problems such as lack of self-learning ability, low intelligence of filters, and inability to respond to spam messages in a timely manner

Active Publication Date: 2011-05-04
广州彩讯数字技术有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

However, when the existing spam filter is designed, the content of the text message is screened and filtered after analyzing the popular spam samples in advance to form spam keywords. Since the keywords are all preset and the syste

Method used

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  • Garbage short message interception method based on characteristic similarity
  • Garbage short message interception method based on characteristic similarity

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Experimental program
Comparison scheme
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Embodiment Construction

[0025] Such as figure 1 Shown, the present invention relates to a kind of junk message intercepting method based on feature similarity, it comprises steps:

[0026] A), initialize the system, open up a group of spaces in the system memory for storing the KEY key-value group of the dynamic interception content of the short message; set up the data simultaneously,

[0027] Corresponding to the length k of the KEY key value stored in the memory after the dynamic interception of the SMS, the starting position p of the dynamic interception, the interval character s and the content length of the SMS message t

[0028] Corresponding to the similarity judgment effective time m,

[0029] Corresponding to the maximum number of times n of the similarity judgment number counter,

[0030] Corresponding to the white list of filter-free SMS;

[0031] Initialize and set the values ​​of the above k, p, s, m, n data, and load them into the system memory;

[0032] Loading the feature informa...

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Abstract

The present invention provides a garbage short message interception method based on the characteristic similarity, which realizes a garbage short message interception method capable of only determining whether a short message is group sending garbage information by tracking the appearance probability of specific similar characteristic information in short message contents at a period of time, includes two filtering algorithms respectively for two modes of appearing contact information (like a telephone number, a web address and a bank card number) of a communication person in the short message content and not appearing a contact information, intercepts communication contact person content and dynamic random short message content after the pretreatment for converting special characters in short message text, then performs similarity comparison with the contents in database and counting, and regards the short message with an exceeding number of corresponding content as garbage short message, and adds the short message content into garbage short message characteristic information content data, so that the method not only realizes the fuzzy matching text identification, but also possesses the intelligent learning identification garbage information function.

Description

【Technical field】 [0001] The invention relates to a spam short message filtering method, in particular to a spam short message interception method based on feature similarity. 【Background technique】 [0002] With the development of mobile communication technology, the coverage of mobile phone applications is very extensive. Wherein, the use of mobile phones to send short messages has become an important way for people to communicate in daily life. For this reason, some unscrupulous merchants have also begun to use text messages to wantonly spread advertising text messages and reactionary text messages. Diverse forms such as multimedia messages and mobile emails have appeared, and the problem of spam messages has become increasingly serious. In order to avoid the flooding of a large number of spam messages in the system, reduce the interference to the public and reduce the impact on the normal business development of mobile operators, it is urgent to develop a set of relati...

Claims

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Application Information

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IPC IPC(8): H04W4/12H04W88/18
Inventor 杨良志
Owner 广州彩讯数字技术有限公司
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