Proceedings of the 9th international World Wide Web conference on Computer networks : the international journal of computer and telecommunications netowrking
Data Mining: Introductory and Advanced Topics
Data Mining: Introductory and Advanced Topics
Comparing accessibility evaluation tools: a method for tool effectiveness
Universal Access in the Information Society
Managing usability for people with disabilities in a large web presence
IBM Systems Journal
Quantitative metrics for measuring web accessibility
W4A '07 Proceedings of the 2007 international cross-disciplinary conference on Web accessibility (W4A)
SAMBA: a semi-automatic method for measuring barriers of accessibility
Proceedings of the 9th international ACM SIGACCESS conference on Computers and accessibility
SAMBA: a semi-automatic method for measuring barriers of accessibility
Proceedings of the 9th international ACM SIGACCESS conference on Computers and accessibility
Beyond Conformance: The Role of Accessibility Evaluation Methods
WISE '08 Proceedings of the 2008 international workshops on Web Information Systems Engineering
Validity and reliability of web accessibility guidelines
Proceedings of the 11th international ACM SIGACCESS conference on Computers and accessibility
Web not for all: a large scale study of web accessibility
Proceedings of the 2010 International Cross Disciplinary Conference on Web Accessibility (W4A)
Comparative study of accessibility evaluation methods with visual impaired
WebMedia '09 Proceedings of the XV Brazilian Symposium on Multimedia and the Web
Macroscopic characterisations of Web accessibility
The New Review of Hypermedia and Multimedia - Web Accessibility
Automatic web accessibility metrics: Where we are and where we can go
Interacting with Computers
ACM SIGACCESS Accessibility and Computing
Proceedings of the 10th International Cross-Disciplinary Conference on Web Accessibility
Hi-index | 0.00 |
Except for trivial cases, any accessibility evaluation has to be based on some method for selecting pages to be analyzed. But this selection process may bias the evaluation. Up to know, not much is known about available selection methods, and about their effectiveness and efficiency. The paper addresses the following open issues: how to define the quality of the selection process, which processes are better than others, how to measure their difference in quality, which factors may affect quality (type of assessment, size of the page pool, structural features of the web site). These issues are investigated through an experimental evaluation of thirteen sampling methods applied to 32000 web pages. While some of the conclusions are not surprising (for example, that sample size affect accuracy), others were not expected at all (that minimal sampling size obtains a high accuracy level under certain circumstances).