Chinese variation text matching recognition method

Abstract

The invention relates to a Chinese variation text matching recognition method. The method comprises the following steps of: performing special encoding conversion on a target text and a mode character string to improve the similarity of texts; adding proper wildcard characters into the converted mode character string according to the structural characteristics of Chinese characters in the mode character string; and matching by using a precise character string matching algorithm (namely a CV-BM algorithm). The method solves the problems of the replacement of characters with similar shapes in the variation text and the matching difficulty based on the replacement of wrongly written characters with similar shapes. The problems of the replacement of the characters with the similar shapes in the variation text and the matching difficulty based on the replacement of wrongly written characters with the similar shapes can be solved. Compared with an image partitioning recognition method, the method has smaller time and space complexities, is more suitable for the quick matching of Chinese character information in a high-speed network data transmission environment, and can be widely applied to systems needing to match the Chinese character information, such as an intrusion prevention system, an information retrieval system and the like.

Description

technical field [0001] The invention relates to a Chinese information retrieval and content filtering method, especially a Chinese information matching method. The method can be widely used in systems such as intrusion prevention systems and information retrieval systems that need to match Chinese information. Background technique [0002] IPS (Intrusion Prevention System) has always played an important role in the security protection system. IPS technology can carry out multi-layer, deep and active protection on the network to effectively ensure the security of the enterprise network. String matching is an important indicator of IPS system performance. String matching refers to finding out all occurrences of P in text T (target text) given a set of specific strings P (pattern strings). If a string identical to the pattern string P is found in the text T, then the pattern string P matches the target text T, otherwise it does not match. [0003] In the Chinese environment, ...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that it is difficult to match the replacement of similar characters in variant text and the replacement of typos based on similar shapes, the present invention improves the similarity of the text by performing special encoding conversion on the target text and the pattern string, and then adopts the exact String matching algorithm to match

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