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File fingerprint check method and apparatus

A file fingerprint and verification method technology, applied in the information field, can solve problems such as manual judgment difficulties, and achieve the effect of improving efficiency

Active Publication Date: 2016-06-08
BEIJING QIHOO TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Coupled with the increasing amount of electronic data, manual judgment of this type of plagiarism is becoming more and more difficult

Method used

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  • File fingerprint check method and apparatus
  • File fingerprint check method and apparatus
  • File fingerprint check method and apparatus

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Embodiment Construction

[0024] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0025] The embodiment of the present invention provides a file fingerprint verification method, such as figure 1 As shown, the method includes:

[0026] 101. Extract and preprocess the file content information in the file to be verified.

[0027] Wherein, the file content information includes the file content in the file to be verified.

[0028] For the embodiment of the present invention, the file content information in the file...

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Abstract

The invention discloses a file fingerprint check method and apparatus, and relates to the technical field of information. The similarity of file data can be accurately checked. The method comprises the steps of firstly extracting file content information in a to-be-checked file and performing preprocessing; extracting fingerprint information in the preprocessed file content information; detecting whether the similarity between the fingerprint information and fingerprint information in a preset fingerprint library is greater than or equal to a preset threshold; and if the similarity is greater than or equal to the preset threshold, then determining the to-be-checked file as a content similarity file. The method and apparatus are suitable for fingerprint check of non-structured data.

Description

technical field [0001] The invention relates to the field of information technology, in particular to a file fingerprint verification method and device. Background technique [0002] With the continuous development of information technology, the use of electronic documents is increasing. Usually this type of file data is unstructured data, that is, data that is not convenient to implement with two-dimensional logical tables of the database, including office documents in all formats, text, pictures, XML, HTML, various reports, images, and audio / video information etc. [0003] At present, while electronic documents facilitate people to improve work efficiency and save paper and other natural resources, they also bring some additional problems and troubles. For example: Electronic documents are easier to copy and spread. The new features of digitization of these documents make plagiarism of documents technically easier. Coupled with the increasing amount of electronic data,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/64
CPCG06F21/64
Inventor 朱细智
Owner BEIJING QIHOO TECH CO LTD