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Querying Web Accessibility Knowledge from Web Graphs
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Author(s): Rui Lopes (LaSIGE, University of Lisbon, Portugal)and Luís Carriço (LaSIGE, University of Lisbon, Portugal)
Copyright: 2009
Pages: 25
Source title:
Handbook of Research on Social Dimensions of Semantic Technologies and Web Services
Source Author(s)/Editor(s): Maria Manuela Cruz-Cunha (Polytechnic Institute of Cavado and Ave, Portugal), Eva F. Oliveira (Polytechnic Institute of Cavado and Ave, Portugal), Antonio J. Tavares (Polytechnic Institute of Cavado and Ave, Portugal)and Luis G. Ferreira (Polytechnic Institute of Cavado and Ave, Portugal)
DOI: 10.4018/978-1-60566-650-1.ch005
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Abstract
Web Accessibility is a hot topic today. Striving for social inclusion has resulted in the requirement of providing accessible content to all users. However, since each user is unique, and the Web evolves in a decentralized way, little or none is known about the shape of the Web’s accessibility on its own at a large scale, as well as from the point-of-view of each user. In this chapter the authors present the Web Accessibility Knowledge Framework as the foundation for specifying the relevant information about the accessibility of a Web page. This framework leverages Semantic Web technologies, side by side with audience modeling and accessibility metrics, as a way to study the Web as an entity with unique accessibility properties dependent from each user’s point of view. Through this framework, the authors envision a set of queries that can help harnessing and inferring this kind of knowledge from Web graphs.
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