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A Method for Retaining Traces of Electronic Official Documents Based on File Comparison

A technology of electronic documents and traces, applied in the direction of electronic digital data processing, special data processing applications, instruments, etc., to achieve the effect of easy implementation, trace retention, and solution to excessive marking

Inactive Publication Date: 2018-06-12
NO 33 RES INST OF CHINA ELECTRONICS TECHNOOGY GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method can effectively solve the problem of over-marking, and the algorithm is simple, and various programming languages ​​are relatively easy to implement, and can be applied to various operating systems and software environments

Method used

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  • A Method for Retaining Traces of Electronic Official Documents Based on File Comparison
  • A Method for Retaining Traces of Electronic Official Documents Based on File Comparison
  • A Method for Retaining Traces of Electronic Official Documents Based on File Comparison

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Embodiment Construction

[0025] The following embodiments will further describe the present invention in conjunction with the accompanying drawings.

[0026] For the convenience of expression and the difference with the LCS algorithm, the method of the present invention is called the LCSS (Longest CommonSubstring) algorithm.

[0027] Assume that the text before modification (source text) is marked as Str_1, and the text after modification (target text) is marked as Str_2.

[0028] like Figure 1a-Figure 1c As shown, the workflow of this method is as follows:

[0029] In the first step, set Str_1 as text 1 and Str_2 as text 2.

[0030] In the second step, use S_1 to store text 1, and S_2 to store text 2 ( Figure 1a Indicated by a thin solid line), use the longest common substring matching algorithm to find the longest common substring P in S_1 and S_2 ( Figure 1a Indicated by a thick solid line), and record the starting position and length of P in S_1 and S_2 respectively. At this time, P will div...

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Abstract

The invention relates to the technical field of e-government affairs, in particular relates to an electronic official document trace reserving method based on file comparison, and provides an electronic official document trace reserving method based on text comparison by using the longest public substring matching. The method can effectively solve the problem of overuse of marks, and is simple in algorithm, relatively easy to be achieved by using various programming languages, and applicable to various operating systems and software environments; the electronic official document trace reserving method based on file comparison comprises the steps of firstly comparing an original text with a modified text, thus obtaining which character strings of the modified text is inserted and which character strings of the modified text is deleted based on the original text, and at last respectively marking the inserted and deleted character strings, thus achieving trace reservation; the electronic official document trace reserving method based on file comparison is mainly applied to modifying the electronic text.

Description

technical field [0001] The invention relates to the technical field of electronic government affairs, and more specifically, to a method for retaining traces of electronic official documents based on file comparison. Background technique [0002] With the continuous advancement of my country's informatization process, e-government has become an important way for government departments to improve their ability and level to perform their duties. As the core and foundation of e-government construction, electronic document circulation has become an important part of the informatization of government departments. In the process of electronic document circulation, according to business needs, there will be personnel in different links to modify its content. Based on the requirements of information integrity and security, everyone's modification traces must be preserved. [0003] At present, the most commonly used method of retaining traces is to use Microsoft Word to edit docume...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/22
CPCG06F40/194
Inventor 张游杰吴伟张清萍马俊明
Owner NO 33 RES INST OF CHINA ELECTRONICS TECHNOOGY GRP
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