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Filtration method of junk mail

A technology of spam and filtering methods, which is applied in the direction of instruments, data processing applications, office automation, etc., can solve problems such as inaccuracy and large randomness, and achieve the effects of avoiding large randomness, reducing misjudgment rate, and optimizing effectiveness

Active Publication Date: 2007-07-04
TENCENT TECH (SHENZHEN) CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a spam filtering method to solve the existing manual customization of each rule score, which is likely to cause large randomness and inaccurate technical problems

Method used

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  • Filtration method of junk mail
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Examples

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Embodiment Construction

[0022] Please refer to FIG. 1 , which is a flow chart of the spam filtering method of the present invention.

[0023] Step 110: Collect email sample sets and rule sets.

[0024] The mail sample set is a certain number of existing mails. For example, the email element E= is called an email sample, which contains two example sets, which are respectively called positive email samples and negative email samples. The positive mail samples represent non-spam mails that do not need to be filtered out; the negative mail sample sets represent spam mails that need to be filtered out.

[0025] The rule set is a set preset according to existing garbage filtering rules. For example, the rule set R=R1*R2*...*Rn, an n-dimensional finite vector space, where Rn is a finite discrete symbol set, and each dimension represents a rule.

[0026] Step 120: Generate a rule training set according to the email sample set and the rule set.

[0027] First, establish the mapping relationship between ea...

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Abstract

The invention discloses a filter method of rubbish mail, said method includes: collecting the mail sample set and rule set; the rule training set is generated based on said mail sample set and rule set; the decision tree model is built according to said rule training set, said decision tree model includes rules and its statistic value which are in various nodes; judging whether the mail is rubbish mail to be filtered based on said decision tree model.

Description

technical field [0001] The invention relates to network information processing technology, in particular to a spam filtering method. Background technique [0002] Based on the rapidity of network transmission, the application of e-mail is becoming more and more extensive, but at the same time, a large amount of spam emerges. Therefore, it is particularly important to effectively filter spam. [0003] In the prior art, spam filtering is mainly implemented at the mail client or server, and the rule filtering method is widely used. The rule filtering, specifically, is to form rules according to certain characteristics (such as words, phrases, positions, sizes, attachments, etc.), and use these rules to describe spam, and most of the rules are regular expressions. At the same time, the score of each rule is manually set. There are good and bad rules. A good rule is a rule that judges an email as a positive email, and its score symbol is negative; a bad rule is a rule that judg...

Claims

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Application Information

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IPC IPC(8): G06Q10/00G06Q10/10
Inventor 母天石周颢
Owner TENCENT TECH (SHENZHEN) CO LTD
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