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• OPTIMAL-EM: Complexity-Driven Clustering for Optimised Web Accessibility Evaluation

  Alexander Hambley, Yeliz Yesilada, Markel Vigo, Simon Harper · 2026 · ACM Transactions on the Web, Vol. 20, No. 2

  Hambley, Yesilada, Vigo, and Harper (University of Manchester and METU-NCC) extend their OPTIMAL-EM methodology for large-scale web accessibility conformance evaluation. The problem they address is fundamental to professional auditing: the W3C's Website Accessibility Conformance…

  web accessibility · accessibility evaluation · WCAG-EM · OPTIMAL-EM · representative sampling

• DOM block clustering for enhanced sampling and evaluation

  Simon Harper, Anwar Ahmad Moon, Markel Vigo, Giorgio Brajnik, Yeliz Yesilada · 2015 · Proceedings of the 12th International Web for All Conference (W4A)

  This paper addresses a fundamental challenge in web accessibility evaluation: large websites with thousands or tens of thousands of pages are practically impossible to fully evaluate, yet current sampling methods (random, best-guess, or convenience samples) cannot be trusted…

  accessibility evaluation · automated testing · web crawling · sampling methodology · DOM analysis

• Thematic Organization of Web Content for Distraction-Free Text-to-Speech Narration

  Muhammad Asiful Islam, Faisal Ahmed, Yevgen Borodin, I.V. Ramakrishnan · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper addresses a fundamental problem in how blind users experience web content through screen readers: the serial, linear narration of complex web pages that contain multiple thematic elements — news stories, ads, navigation taxonomies, and opinion pieces — all…

  screen readers · web segmentation · text-to-speech · blind users · cognitive load

• Grouping Hyperlinks for Improved Voice/Mobile Accessibility

  Alex Penev, Raymond K. Wong · 2008 · Proceedings of the 2008 International Cross-Disciplinary Conference on Web Accessibility (W4A)

  This paper from UNSW Sydney proposes an automatic technique for clustering a web page's hyperlinks into topical groups to help blind screen reader users and mobile device users locate desired links more quickly. The core problem is that sighted users can visually scan a page in…

  web accessibility · screen readers · blind users · navigation · mobile accessibility

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