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Electronic information comparing system and method and anti-garbage mail system

A relatively systematic and electronic text technology, applied in the computer field, can solve the problems of low accuracy, low efficiency, and low accuracy, and achieve the effect of high accuracy

Active Publication Date: 2007-10-03
TENCENT TECH (SHENZHEN) CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide an electronic text comparison method and system for the defects of low efficiency or low accuracy in the above-mentioned existing electronic information comparison technology
[0009] The present invention also provides a new anti-spam system aiming at the low execution efficiency and low accuracy of the existing anti-spam system

Method used

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  • Electronic information comparing system and method and anti-garbage mail system
  • Electronic information comparing system and method and anti-garbage mail system
  • Electronic information comparing system and method and anti-garbage mail system

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Embodiment Construction

[0036] As shown in FIG. 1 , the electronic text comparison system of the present invention includes a matrix conversion module 11 and a matrix comparison module 12 . The matrix conversion module 11 can read in the electronic text segment. In this embodiment, the electronic text segment can be text data and digital data in various formats.

[0037] The matrix conversion module 11 is used to read in the electronic text and convert the electronic text into a transfer matrix. In this embodiment, the transfer matrix generated by the matrix conversion module 11 is a matrix with a maximum size of 256x256, and this matrix is ​​a sparse matrix. Matrix conversion module 11 does not consider the encoding format and wide character attributes of electronic text when converting, and treats each letter as 8 bits (bit), so that the integer value range of each character of electronic text is 0-256 , and then count the frequency of each character and other characters around it at the same time...

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Abstract

The present invention discloses an electronic text comparison method. Said method includes the following steps: (a), converting first electronic text segment and second electronic text segment into first matrix and second matrix respectively according to identical conversion rule, the described first matrix is identical to second matrix in size; (b), successively comparing elements of identical positions of first matrix and second matrix, and according to the compared result using defined comparison function to calculated similar coefficient; and (c), according to similar coefficient judging that the described first electronic text and second electronic text are similar or not, if the described similar coefficient is greater than specific threshold value, it expresses that first electronic data segment and second electronic data segment are similar. Besides, said invention also discloses a correspondent electronic text comparison system and a system for resisting garbage mail.

Description

technical field [0001] The invention relates to the field of computer technology, more specifically, to an electronic information comparison system and method and an anti-spam system. Background technique [0002] With the development of the Internet, more and more people start to use email to communicate with each other. Thereupon, a large amount of junk mails (such as malicious harassment mails and advertising mails, etc.) have also appeared to flood the user's electronic mailboxes, causing inconvenience to the users. [0003] An important feature of spam is sending a large number of similar emails. Although spammers are gradually changing their sending strategies and changing details such as the content format of sent emails, a large number of similar features still cannot be changed. Such spam identification has increasingly relied on the rapid identification of a large number of emails with similar content. At the same time, when identifying emails with similar conte...

Claims

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Application Information

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IPC IPC(8): G06Q10/00H04L12/58G06Q10/10
Inventor 王晖
Owner TENCENT TECH (SHENZHEN) CO LTD
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