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Paper 246_elpub2006:
Transcoding for Web Accessibility for the Blind: Semantics from Structure

id 246_elpub2006
authors Fernandes, António R.; Carvalho, Alexandre; Almeida, J. João; Simões, Alberto
year 2006
title Transcoding for Web Accessibility for the Blind: Semantics from Structure
source ELPUB2006. Digital Spectrum: Integrating Technology and Culture - Proceedings of the 10th International Conference on Electronic Publishing held in Bansko, Bulgaria 14-16 June 2006 / Edited by: Bob Martens, Milena Dobreva. ISBN 978-954-16-0040-5, 2006, pp. 123-134
summary True accessibility requires minimizing the scanning time to find a particular piece of information. Sequentially reading web pages do not provide this type of accessibility, for instance before the user gets to the actual text content of the page it has to go through a lot of menus and headers. However if the user could navigate a web page based through semantically classified blocks then the user could jump faster to the actual content of the page, skipping all the menus and other parts of the page. We propose a transcoding engine that tackles accessibility at two distinct, yet complementary, levels: for specific known sites and general unknown sites. We present a tool for building customized scripts for known sites that turns this process in an extremely simple task, which can be performed by anyone, without any expertise. For general unknown sites, our approach relies on statistical analysis of the structural blocks that define a web page to infer a semantic for the block.
keywords web accessibility; visual impairment; transcoding; assistive technologies
series ELPUB:2006
type normal paper
email ambs@di.uminho.pt
more http://www.elpub.net
content file.pdf (3,309,342 bytes)
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urn:nbn urn:nbn:se:elpub-246_elpub2006
last changed 2006/05/20 11:20
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