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Maintenance method for package device

A wrapper and data item technology, applied in instruments, special data processing applications, electrical digital data processing, etc., can solve the problem of low accuracy and achieve the effect of high accuracy

Inactive Publication Date: 2007-09-19
孟小峰 +6
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The limitation of this method is that it can only deal with a simple list structure, and the accuracy of structure recognition is not high when the content of the page changes.
[0012] The above common methods do not solve the problem of wrapper maintenance well

Method used

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  • Maintenance method for package device
  • Maintenance method for package device
  • Maintenance method for package device

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Experimental program
Comparison scheme
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Embodiment Construction

[0037] In order to understand the present invention more easily, related concepts are now described.

[0038] A wrapper is capable of wrapping data from a semi-structured or unstructured data source into structured or semi-structured data with a schema. For the Web wrapper, the data in the semi-structured modeless HTML page is extracted to obtain the semi-structured XML data with mode.

[0039] Schema specifies the elements that can exist in a document, the attributes that elements can have, the data types, the hierarchy of elements within elements, and the order in which elements appear in the entire document. It enables the documentation of tags, enforces internal consistency of tag parameters, and enables XML parsers to validate documentation. In the present invention, DTD is used to describe the data in the webpage to be extracted by the user and the format of the resulting XML document finally obtained from the wrapper.

[0040] HTML tree: The HTML document can be parse...

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PUM

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Abstract

The maintenance method of packing utensil includes: extracting mark features of data item in Web entity before change with original packing utensil; finding out the data item with the mark features with the Web HTML tree after traversal change of data item mark features; finding out the data item of the same entity, dividing its semantic block or converging the data item of the entity and extracting the data item description mode of the entity; matching the data item description mode of other entities in the same sub-tree level as HIML with the mode; treating the sub-trees based on the matching degree; obtaining the semantic block with best matching and re-creating new extraction regulation or creating new packing utensil. The present invention proposes one clear flow chart for creating packing utensil capable of being easily integrated with other application system.

Description

technical field [0001] The invention relates to a method for maintaining wrappers in Web pages. Background technique [0002] The Internet has a history of more than 20 years, and the Internet boom has only appeared in recent years, which is mainly due to the Web. The Internet provides worldwide network interconnection and communication functions, and the Web is a global information resource library. The Web is composed of countless pages (Home page), and the information on the pages is all-encompassing, and it is constantly increasing and updated every day. Users only need to open the browser to get the information they are interested in. The ease of use of the Web enables millions of households to share the huge information resources on the Internet. Nowadays, everyone is talking about the Web and the home page, and when you open a newspaper or news magazine, the Web and the home page are mentioned almost every day. From a small store to a large company, from a researc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 孟小峰谷明哲王海燕胡东东于峻涛易蕾李宇
Owner 孟小峰