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Accessible webpage navigation method based on navigation target extraction

A navigation method and object extraction technology, applied in the field of barrier-free web page navigation, can solve problems such as object navigation that cannot be navigated

Active Publication Date: 2016-12-14
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, blind people cannot use navigation objects to navigate to the pages they need to browse because they cannot receive information through vision.

Method used

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  • Accessible webpage navigation method based on navigation target extraction

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Embodiment Construction

[0018] With reference to accompanying drawing, further illustrate the present invention:

[0019] A barrier-free web browsing method based on link clustering, the method comprises the following steps:

[0020] 1. After crawling web pages from the Internet, perform the following operations on each web page:

[0021] 1) Parsing the webpage into a document object model tree, performing depth-first traversal on the document object model tree, and numbering the nodes on the document object model tree in sequence with natural numbers;

[0022] 2) The distance between the hyperlinks is represented by the absolute difference of numbers corresponding to the two hyperlinks, and the hyperlinks near the distance are grouped together;

[0023] 3) For each hyperlink group C i Calculate the number of hyperlinks N i , the average length of hyperlink text with variance Formally group hyperlinks C i expressed as a vector

[0024] 4) Use the SVM classification algorithm to classify th...

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Abstract

The invention discloses an accessible webpage navigation method based on navigation target extraction. The accessible webpage navigation method comprises the following steps: after capturing webpages from an internet, carrying out the following operation for each webpage: firstly, analyzing the webpage as a file garget model tree; performing depth-first traversal on the file target model tree, and numbering nodes of the file target model tree by using nature numbers; by taking the absolute difference of corresponding numbers of two hyperlinks as the distance between the hyperlinks, dividing hyperlinks with small distances into one group; calculating the number of hyperlinks of each hyperlink group, and the mean and the square difference of lengths of hyperlink texts; by taking the number of hyperlinks, the mean and the square difference of lengths of the hyperlink texts as characteristics, representing the hyperlink groups in a formalization manner; classifying the hyperlink groups after representation of formalization into navigation targets and non-navigation targets. The accessible webpage navigation method has the advantages that the navigation targets in the webpages can be automatically extracted, users can be navigated rapidly among webpages, and the user representation degree can be increased.

Description

technical field [0001] The invention relates to the technical field of barrier-free web page navigation methods, in particular to a barrier-free web page navigation method based on navigation object extraction. Background technique [0002] There are about 30 million blind people in the world, and there are about 5 million blind people in China, accounting for 18% of the world's total. With the high popularity of the Internet and the increasing importance of the Internet in daily life, the problem of blind people going online will become a barrier-free construction important issues in . Because blind people cannot receive information through vision, their Internet access problems are particularly prominent. Moreover, the content of the current website is more and more abundant, and the structure of the website is complex, especially some large Internet companies, such as portal websites such as Sina and Sohu, which contain millions of webpages. Facing a website with such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/958
Inventor 王灿钊魁卜佳俊陈纯
Owner ZHEJIANG UNIV
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