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Keyword fuzzy matching method and device

A technology of fuzzy matching and keywords, applied in the field of network security, can solve problems such as poor flexibility and low matching efficiency, and achieve the effect of improving flexibility and efficiency

Inactive Publication Date: 2016-06-29
HANGZHOU DPTECH TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The keyword fuzzy matching method and device provided by the present invention solve the problems of poor flexibility and low matching efficiency in the prior art of using regular expressions for keyword fuzzy matching

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  • Keyword fuzzy matching method and device
  • Keyword fuzzy matching method and device

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Embodiment Construction

[0036] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0037] see figure 1 , is a schematic diagram of an application scenario applying the keyword fuzzy matching method according to an embodiment of the present invention.

[0038] figure 1 shows a keyword fuzzy matching system networking architecture. Among them, the network device 11 can be placed between the network and the terminal, and can also be placed between the networks to perform keyword fuzzy matching on the passing network data. For example: when a terminal user visits a webpage, if the visited webpage contains keywo...

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Abstract

The present invention provides a keyword fuzzy matching method and device. The method is applied to network equipment, including: acquiring the first target text to be matched, and using a first state machine to perform a first traversal on the first target text to obtain the Presetting the matching interference characters corresponding to the interference characters, and extracting the matching interference characters from the first target text, the extracted text is the second target text, and using the second state machine to process the second target text A second traversal is performed on the text to obtain matching keywords corresponding to preset keywords, and corresponding keyword processing is performed according to the matching keywords. Applying the embodiment of the present invention, using the first state machine and the second state machine to carry out keyword fuzzy matching can support multiple encodings, and the time complexity has nothing to do with the number and length of keywords, and multiple keywords can be matched at one time, improving Matching flexibility and efficiency.

Description

technical field [0001] The invention relates to the technical field of network security, in particular to a keyword fuzzy matching method and device. Background technique [0002] With the rapid popularization of the Internet, a large amount of information appears on the Internet. While the Internet benefits mankind, it also brings many problems to users. The convenience and flexibility of Internet use has become an important channel for criminals or hackers to spread illegal information. More and more network applications need to efficiently match and process keywords such as illegal expressions and prohibited and restricted products. [0003] Among them, the matching of keywords can not only be done by analyzing the context semantics, but also needs to be developed in the direction of intelligence, and needs to use a richer expression to accurately match the content that the manager wants to filter. Moreover, in the expression, there should be some assumptions and verific...

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Application Information

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IPC IPC(8): G06F17/30
Inventor 魏方征
Owner HANGZHOU DPTECH TECH