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In-page navigation generation method facing barrier-free access to webpage contents

A webpage content and barrier-free technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inability to distinguish blocks

Active Publication Date: 2012-11-28
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The screen reader software converts the content of the web page into sequential text and reads it by voice, and cannot effectively distinguish the blocks in the web page

Method used

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  • In-page navigation generation method facing barrier-free access to webpage contents
  • In-page navigation generation method facing barrier-free access to webpage contents
  • In-page navigation generation method facing barrier-free access to webpage contents

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Embodiment Construction

[0032] With reference to accompanying drawing, further illustrate the present invention:

[0033] A method for generating in-page navigation oriented to webpage content accessibility, the method comprising the following steps:

[0034] 1. After crawling web pages from the Internet, perform the following operations on each web page:

[0035] 1) Use the data entry extraction algorithm to extract the data entries of the webpage, that is, the data presented in the webpage through a consistent structure.

[0036] 2) Use the page block division algorithm to divide the page into blocks, and when the blocks are divided, the parallel data entries are divided into the same block;

[0037] 3) Create a two-level navigation index tree using data entries and partition blocks. The first level is the blocks of the web page, and the second level is the data entries in each block.

[0038] 2. The data entry extraction algorithm described in step 1) is as follows:

[0039] 1) Establish the HT...

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Abstract

The invention discloses an in-page navigation generation method facing barrier-free access to webpage contents. After webpages are captured from an Internet, aiming at each webpage, the method comprises the following steps of: resolving the webpage into a document object model (DOM) tree structure through a hyper text mark-up language (HTML) resolver, and performing data item extraction on the webpage according to an editing distance between DOM trees; initially dividing the webpage according to some rules, detecting a separator between initially divided blocks, calculating the inconsistency degree of the inner parts of the blocks according to the maximum separator, and performing actual block division on the webpage according to the inconsistency degree of the inner parts of the blocks; and finally arranging the blocks of the webpage and the data items to form a two-level in-page navigation. The method has the advantages that the two-level in-page navigation is supplied to the webpage; a user, particularly a user who suffers from vision disability and accesses the webpage contents through screen reading software, can quickly learn about the contents of respective parts of the webpage so as to quickly lock the contents in which the user is interested; and the surfing experience of the user is enhanced.

Description

technical field [0001] The invention relates to the technical field of in-page navigation generation of barrier-free web pages, in particular to an in-page navigation generation method based on web page data item extraction and web page segmentation. Background technique [0002] According to the results of the second national sample survey of disabled people in 2006, there are 12.33 million people with visual disabilities in my country, and they are a group with special difficulties in society. With the high popularity of the Internet and the increasing importance of the Internet in daily life, the problem of webpage information accessibility for the visually disabled has become an important content of my country's information accessibility construction. Due to physical impairment, the visually impaired cannot normally read the content on the webpage, so the problem of surfing the Internet is particularly prominent. [0003] Visually impaired people often use screen reader...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 王灿卜佳俊周逸伦何占盈陈纯
Owner ZHEJIANG UNIV
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